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Black Box Version 1.0 User's Manual

1. Config terminal coe Rate Mode adaptive Line Rate Range MAX 2320 MIN 72 Status F W Version EL Line Code PAM SHDSL SHDSL Standard ANNEX B Last Failed No failure Start Progress PRE ACTIVATION Attenuation NaNdB Line Quality InfinitydB Avg Quality InfinitydB Receiver Gain InfinitydB XMIT Power 0 0dBm Framer Status Unknown 0x88 Current Rate 0 Line Status Handshake gt shdsl gt Command format status Definitions Config The device configuration Terminal The device type Coe CPe Rate Mode Line rate mode Manual Automatic Line Rate Range Line range rate in the automatic mode Status shdsl status Version 1 0 Page 61 of 95 BLACK BOX Network Services AG fiir aktive und passive On eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 8 2 14 Show command The show command displays the modem IP address and active PVC settings gt gt show Ethernet ip 192 168 1 1 Subnet mask 255 255 255 0 FUNCTION VPI VC CLASS LLC VCMUX Spanning Pkt Filter Rfc1483 8 35 ubr LLC Disable ANY gt gt Command format show Definitions Ethernet ip The device IP address Subnet mask Subnet mask Function Indicates the used protocol VPI VCI P
2. To DSL line AFT RAM ROM 10 BaseT Monitor Fig 15 Structural schematic of MDS92xxx 10BT The CPU enables control of all devices functioning units in accordance with the firmware and the parameters configured The CPU supports the Ethernet and RS 232 interfaces The memory unit keeps the control micro program temporary values and buffers Ethernet packets The setup of the parameters mode switching and system control are enabled though the management interface with the help of VT 100 type terminal or over Telnet and HTTP protocols through Ethernet The firmware loading can be implemented through the Ethernet interface as well The signal processor enables translation of data flow before it is transmitted over a line The signal processor also enables e structure generation of the SHDSL cycle word synchronization bits etc and its filling with data e synchronization flattening between the internal bus of the device and transmission on the line i e management of the stuffing algorithm The signal processor also controls the process of communication on lines and digital processing Version 1 0 Page 32 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite Netzwerkl sungen e Mail blackbox black box ch www black hox ch BL
3. Command format delwanip lt all gt lt vpi gt lt vci gt Parameter ALT Deletes all PVC VPI VCI Deletes the selected PVC with the VPI VCI number 8 3 12 2 Setqos command The setqos command sets the priority for the active PVC gt r1483 gt setqos 8 35 ubr gt r1483 gt Command format setqos lt vpi gt lt vci gt lt ubr cbr vbr nrt gt Version 1 0 Page 74 of 95 BLACK BOX Network Services AG f r aktive und passive On eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen BLACK BOX Parameter VPI VCI Sets PVC with the VPI VCI number UBR Sets the UBR priority CBR Sets the CBR priority VBR Sets the VBR priority VBRNRT Sets the VBR NRT priority 8 3 12 3 Setrip command The setrip command sets the RIP type for the used PVC gt pppoa gt setrip 1 gt pppoa gt Command format setrip 1 2 1 amp 2 0 Parameter VPI VC Sets PVC with the VPI VCI number 1 Sets RIPI 28 Sets RIP2 1 amp 2 Sets RIPI u 2 0 RIP is not used 8 3 12 4 8 3 12 4 Setwanip command The setwanip command sets the IP address of the SHDSL WAN interface for the selected PVC gt r1483 gt setwanip 8 35 216 71 89 12
4. BLACK BOX 12 2 Cross over Ethernet cable The cable contains only two pairs Side A Color Side B 1 white orange 3 2 orange 6 3 white blue 1 6 blue 2 The cable contains four pairs Side A Color Side B 1 white green 3 2 green 6 3 white orange 1 4 blue 7 5 white blue 8 6 orange 2 7 white brown 4 8 brown 5 12 3 Monitor connector Device Computer DB9M DB9F DB25F 2 2 3 3 3 2 5 5 7 Version 1 0 Page 87 of 95 BLACK BOX Network Services AG f r aktive und passive on eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX 13 DELIVERY SET see the technical passport Typically the delivery set includes e SHDSL modem e AC power adapter for Stand Alone versions only e AC power cable for MiniRack versions only e Ethernet cable e User Manual in some cases can be made available on a disk or web site Version 1 0 Page 88 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black hox ch BLACK BOX 14 GLOSSARY DSL digital subscriber line Digital technology
5. No i f name WanIP Port Protocol Server IP 1 pppoa 434 udp 192 62 2 134 2 210 62 2 195 232 tcp 192 62 2 166 gt pat Command format show Definitions Interface The used interface IP address Interface IP address No The table serial number i f name WanIP The interface name WAN address Port Protocol Port and transmission protocol Server IP The server IP address 8 3 9 Ping command See 8 2 8 8 3 10 Pppoa command The pppoa command puts the system into the menu of PPP over ATM settings gt gt pppoa gt pppoa gt Command format pppoa adduser lt vpi gt lt vci gt lt userid gt lt chap pap gt chpass deluser echo interval time setllc lt e gt nable lt d gt isable setqos lt ubr cbr gt setrip lt 1 2 1 amp 2 0 gt show Parameter Adduser See 8 3 10 1 Chpass See 8 3 10 2 Deluser See 8 3 10 3 Echo See 8 3 10 4 Setllc See 8 3 10 5 Setgos See 8 3 10 6 Setrip See 8 3 10 7 Show See 8 3 10 8 Version 1 0 Page 70 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 8 3 10 1 Adduser command The adduser command activates VC assigning the VPI VCI addresses and sets the user s name and the password for PPP over ATM connections gt
6. System start gt gt Command format save Parameter none Note The save command restarts the system 8 2 13 Shdsl command The shdsl command puts the system into the submenu of the shdsl line gt gt shdsl gt shdsl gt Command format shdsl default enable terminal lt Coe gt lt CPe gt annex lt a b gt fix Rate adapt maxrate lt minrate gt status Parameter Default See 8 2 13 1 Enable See 8 2 13 2 Terminal See 8 2 13 3 Annex See 8 2 13 4 Fix See 8 2 13 5 Adapt See 8 2 13 6 Status See 8 2 13 7 8 2 13 1 Default command The default command sets the shdsl default settings shdsl default shdsl Command format default Parameter none Version 1 0 Page 58 of 95 BLACK BOX Network Services AG f r aktive und passive On eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen BLACK BOX 8 2 13 2 Enable command The enable command activates the last settings of shdsl without them being saved and restarted gt shdsl gt enable gt shdsl gt Command format enable Parameter none 8 2 13 3 Terminal command The terminal command sets the device as the master or slave gt shdsl gt terminal coe gt shdsl Command format terminal lt Coe gt lt CPe gt Para
7. By dividing large networks into self contained units bridges provide a range of additional advantages First because only a certain percent of traffic is forwarded bridges diminish traffic passing through devices of all connected segments Second bridges act as a firewall for some potentially damaging network errors Third bridges allow communication between a larger number of devices than any single LAN connected to the bridge would support Fourth bridges extend the effective LAN length permitting the attachment of distant stations Types of bridges Bridges can be either local or remote Local bridges provide a direct connection of subnet segments in the same area Remote bridges connect subnet segments in different areas usually over telecommunication lines The MDS92xxx 10BT device belongs to remote bridges Remote bridging represents several unique internetworking challenges One of them is the difference between LAN and WAN speeds Vastly different LAN and WAN speeds sometimes prevent users from running delay sensitive network applications over the WAN Remote bridges cannot increase WAN speeds but they can compensate for the speed discrepancies by using buffering capacities If a LAN device capable of a 10 Mbit s transmission rate intends to communicate with another remote LAN device the local bridge must regulate the 10 Mbit s information flows in order not to overwhelm the 2 Mbit s serial link It is done by storing the incomin
8. gt r1483 gt delpvc all gt r1483 gt Command format delpvc lt all gt lt vpi gt lt vci gt Parameter All Deletes all PVCs VPI VCI Deletes a PVC with a VPI VCI number 8 2 10 2 Pfilter command The pfilter command sets the packet filter for the mentioned PVC gt r1483 pfilter 8 35 ip gt r1483 gt Command format pfilter lt vpi gt lt vci gt lt anylipjpppoeligmp none gt Parameter VPI VCI Sets PVC with the VPI VCI number Any This PVC passes any packet Ips This PVC passes only IP packet Pppoe This PVC passes only PPPoE packet Igmp This PVC passes only IGMP packet None This PVC does not pass packets found the system displays an error message Note The pfilter command changes the PVC parameters first configured by the quick command see 8 2 9 or setpvc command see 8 2 10 3 If the mentioned PVC is not 8 2 10 3 Setpvc command The setpvc command activates PVC with a mentioned address Version 1 0 BLACK BOX Network Services AG Ori eo U rce Z rcherstrasse 102 CH 8852 Altendorf Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 Tr MEE e Mail blackbox black box ch Netzwerkl sungen Page 55 of 95 f r aktive und passive Netzwerkkomponenten www black box ch BLACK BOX gt r1483 gt setpvc 8 35 llc gt r1483 gt Command format setpvc lt vpi gt lt vci gt IIc v
9. BLACK BOX MDS920C 1 OBT RACK CARD MDS921AE 10BT stanparone MDS922AE 10BT wu sach Ethernet Router Bridge User Manual Version 1 0 Revision 11 February 2003 Copyright 2002 by BLACK BOX Network Services AG The contents of this publication may not be reproduced in any part or as a whole transcribed stored in a retrieval system translated into any language or transmitted in any form or by any means electronic mechanical magnetic optical chemical photocopying manual or otherwise without the prior written permission of BLACK BOX Network Services AG All rights reserved BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Aan Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX VERSION SONTROL nina 5 1 INTRODUC TION E 6 3 SPECIFICATIONS FEHLER TEXTMARKE NICHT DEFINIERT 4 ize eer muc 9 4 1 xDSL technology background EE 9 4 1 1 Asymmetric DSL ADSL technology eeeeeesessssussss 9 43 2 ISDN DSL technology irren en 10 4 1 3 High bit rate DSL HDSL technology 11 AAA EXTRAns technology iu Seed ehe Dales 13 4 1 5 Multispeed DSL MDSL technology cc cceeeeeeeeeeeeeettteeeeeeeeeeeeeee 14 4 1 6 Multispe
10. gt r1483 gt Command format setwanip lt vpi gt lt vci gt lt wanip lt masknum gt gt IIc vcmux Parameter VPI VCI Sets PVC with the VPI VCI number Wanip Sets the IP address of the device WAN interface Musknum Sets the mask number Llc vcmux Sets the encapsulation type according to RFC1483 Version 1 0 Page 75 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 8 3 12 5 Show command The show command displays the r1483 configuration gt r1483 show RFC1483 setting FUNCTION VPI VC CLASS LLC VCMUX Wan IP MaskNum RIP Rfc1483 8 35 ubr LLC 216 71 89 12 24 1 gt r1483 gt Command format show Definitions VPI VCI Defines the used PVC with the VPI VC number Wanip MaskNum IP address subnet mask Class Connection priority RIP The used RIP 8 3 13 Quick command The quick command allows to set quickly the connection with the help of prompts gt gt quick R1483 r IPoA i PPPOA p i 0 PVC existed 5 PVCs available Ethernet IP 192 168 1 1 198 24 67 20 Subnet mask 255 255 255 0 255 255 255 0 VPI 0 4095 8 VCI 1 65535 35 WAN IP 216 71 89 12 Gateway
11. BLACK BOX 15 EXAMPLE OF NETWORK CONFIGURATION Consider the following example of router configuration in MDS92xxx 10BT modems Fig 13 shows the network structure Kl 216 71 8942 216 71 89 3 Router1 Router2 198 24 67 20 24 194 27 54 10 24 Fig 13 network With the help of the mode command select the routing mode for the modem The following message notifies you that the current mode now is router Then we should configure each of the gt gt node Please select bridge or router lb r r T Current node is router fl routers 15 1 Router 1 Type quick and press enter gt gt node Please select bridge or router b r r r Current node is router quick R1483 r IPoRCil PPPoR pl _ Version 1 0 Page 92 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX When the following message R1483 r IpoA PPPoA p appear type IpoA and press enter Enter the IP address which will belong to the router In our case it is 198 24 67 20 with mask 255 255 255 0 gt gt node Please select bridge or router lbr rIr Current node is router gt gt quick Ri483lr IPaRLil PFPoAlpl ipoa O PWC existed 5 Filz available Ethernet IP 192 168 1 1 _ The
12. Ee AM ROUT eege DEE eene 94 Version 1 0 Page 4 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten kk Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX VERSION CONTROL version Date Major changes to previous version 0 1 30 Jul 2001 First version 0 2 9 Sept 2001 Pre official version Chapter 4 2 is changed Small changes throughout the text 1 0 11 Feb 2003 Layout Small changes throughout the text Version 1 0 Page 5 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 1 INTRODUCTION MDS921AE 10BT MDS920C 10BT and MDS922AE 10BT network and line termination units are a part of the Black Box PAM family hereafter family constructed for the organization of high speed communication channels over one pair copper lines DSL This family of units represents G shdsl modems that have 64 2312 kbit s speed of data transfer The modern type of TC PAM encoding has the best characteristics of long distance data transmission and electromagnetic compatibility while working over one pair subscriber lines TC PAM can be deciphered as Trellis C
13. Router 3 Physical address Packet To Destination host Protocol address Destination host Physical address M Packet Destination host PC Fig 6 Change of packet addresses Version 1 0 Page 27 of 95 BLACK BOX Network Services AG f r aktive und passive Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black hox ch Netzwerkl sungen BLACK BOX 4 2 4 2 Routing algorithms RIP The rate of information processing and its trustworthiness depend on the routing algorithm But more complicated and high speed algorithms imply high requirements to the router s capacity Static routing algorithms are the simplest ones The network administrator establishes routing tables and they do not change until the network administrator changes them Algorithms of static routers are simple to design and they work well in simple networks with low traffic Dynamic routing algorithms are more complicated ones They adjust in real time to network changes They do this by analyzing incoming routing update messages If the router receives a message about a network change it makes updates it s routing table and sends out this information to all the nodes The Routing Information Protocol RIP implemented in MDS92xxx 10BT modems is a dynamic routing protocol RIP routing tables contain informatio
14. Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black hox ch Netzwerkl sungen BLACK BOX lafe Ee WE RT Be Te 80 10 1 4 Network Interface 81 10 2 Power S pply see EES etr iit FERRE ER FR ERN XR FEAT RE TRE ge EEN 81 10 2 1 Protection against dangerous affects sssssssesssss 82 10 2 2 Surge safety sssssssssssssssssessseseeeeennre nennen eren nnnr nnn nenne 82 10 3 10 3 Climatic conditions 82 10 4 10 4 Guarantee oic ee ertet Gee andi eaedem Eee e Yer vea dined 83 10 5 10 5 Physical dimensions tpe eod ra Senn Loa ur nsi ae ndo ond denas 83 11 CONNECTORS DESCRIPTION 2 0222200 2000000000000nnnnunnnnnunnnnunnnnnnnnnnnn nn nnnnnnnn nn 84 11 1 SHDSL connector nennen nA AE anaE Ea nennen 84 11 2 Monitor connector unnsennsennsnnsennnennnnnnnnnnnnn nennen nenn a iaiia a E Ena 84 11 3 Ethernet Le 85 11 4 Power connector For MDS922AE 10BT een 85 12 DESCRIPTION OF INTERFACE CABLES 22u0222u000000000000nnn0nnnnnnnnnnunnnnnnnnnnnnnnnn 86 12 1 Direct Ethernet cable mnm emm rmm 86 12 2 Cross over Ethernet Cable memes 87 12 3 Monitor conpnechor emen a A herr ne ene rene tenens 87 13 DELIVERY SET obt rteeuge Eu ecu SE SEENEN aD Cn e rn ec Cua ERC Eod CR ERN TOR Sue dur ANO 88 14 GLOSSARY EE 89 15 EXAMPLE OF NETWORK CONFIGURATION eere nnn nnn nnn nn 92 ISA ROUET ETERNI 92
15. e high speed access to SDH networks Restrictions e two pairs are used for stream transmission e impossibility to regulate transmission rates e increased influence on analog systems with frequency division multiplexing demultiplexing Version 1 0 Page 12 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten kk Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 4 1 4 EXTRAns technology xDSL solutions are widely used for the organization of interstation trunk lines creation of routes for multiplexers and routers But the wide spread of analog systems with frequency division multiplexing demultiplexing of the K 60 K 24 K 12 types makes it difficult to use standard xDSL solutions over backbone trunk lines and zone cables of the different types with the wire diameter of 0 9 1 2 if one of the analog systems works over cables To digitalize local and zone lines NTC NATEKS engineered the EXTRAns technology based on asymmetric adaptive multimode CAP modulation with a regulated level This technology allows transmitting synchronous digital stream with a changeable line speed from 144 to 2064 Kbit s over two copper pairs The technology stipulates the installation of up to 6 remotely powered regenerators The number of regenerators can be doubled if they are remotely powered from two manned rep
16. 10 6 6 Show command The show command displays the configuration of all the active PVCs gt r1483 gt show FUNCTION VPI VC CLASS LLC VCMUX Spanning Pkt Filter Rfc1483 8 35 ubr LLC Disable IP gt r1483 gt Command formate show Parameter none Definitions Function Defines the used protocol VPI VCI PVC number CLASS Priority LLC VCMUX Encapsulation type according to RFC1483 Spanning Spanning tr mode enabled disabled Pkt Filter The used packet filter 8 2 11 Restart command The restart command reboots the system gt gt restart NBfs2 Helium Family PP flash boot 6 1 0 25 22 October 1999 c Copyright BLACK BOX 1999 SDRAM size 0x800000 type 0x2 NPnNo Booting System start gt gt Command format restart Parameter none 8 2 12 Save command The save command preserves all the changes gt gt save Saving configuration Configuration saved Updating flash filing system NBfs2 Version 1 0 Page 57 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX Helium Family PP flash boot 6 1 0 25 22 October 1999 c Copyright BLACK BOX 1999 SDRAM size 0x800000 type 0x2 NPnNo Booting
17. 10 8 Show command The show command displays the configuration of the current PPP over ATM connection gt pppoa gt show PPPoA setting Function VPI VC CLASS RIP UserID Authentication PPPoA 8 35 cbr Jl Access CHAP LLC Enable Echo is disabled pppoa gt Command format show Parameter None 8 3 11 Pppoe command The pppoe command puts the system into the menu of PPP over Ethernet settings The menu description will be given in the next version Version 1 0 Page 73 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten bed Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 Beggener e Mail blackbox black box ch www black hox ch BLACK BOX 8 3 12 R1483 command The r1484 command puts the system into the menu of RFC1483 encapsulation settings gt gt r1483 gt r1483 gt Command format r1483 delwanip lt all gt lt vpi gt lt vci gt setqos lt vpi gt lt vci gt lt ubr cbr vbr nrt gt setrip lt vpi gt lt vci gt lt 1 2 1 amp 2 0 gt setwanip setwanip lt vpi gt lt vci gt lt wanip lt masknum gt gt Ilc vcmux show Parameter Delwanip See 8 3 12 1 Setqos See 8 3 12 2 Setrip See 8 3 12 3 Setwanip See 8 3 12 4 Show See 8 3 12 5 8 3 12 1 Delwanip command The delwanip command serves to delete all or selected PVC gt r1483 gt delwanip all gt r1483
18. 1296 1288 1232 1224 1168 1160 1104 1096 1040 1032 976 968 912 904 848 840 784 776 720 712 656 648 592 584 528 520 464 456 400 392 336 328 272 264 208 200 144 136 80 72 Note The fixed mode must be enabled on the master device 8 2 13 6 Adapt command The adapt command sets the automatic mode of line rate adjustment gt shdsl gt adapt 2320 72 gt shdsl gt Command format adapt lt maxrate gt lt minrate gt Parameter Maxrate Displays the maximal rate of the connection Minrate Displays the minimal rate of the connection Version 1 0 Page 60 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen BLACK BOX Note The adaptive mode must be configured on the slave device If the manual mode is configured on the master device the line rate will be set according to the fix parameter of the master device If the automatic mode is configured on the master device the line rate will depend on the DSL line quality 8 2 13 7 Status command The status command displays the actual SHDSL connection status shdsl status
19. 4 Hub port activation LED Col Collision LED in Ethernet interface 48VDC 48 Volt DC power input socket Monitor DB9F socket to connect management terminal 220VAC 220 Volt AC power input socket L Grounding bolt Version 1 0 Page 38 of 95 BLACK BOX Network Services AG f r aktive und passive on eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX G shdsl Ethernet Connection xDSL SYNCH ALARM LINK ACT 1234 COL x2 X3 X4 LINK Xi ACT PWR MONITOR 48VDC 220VAC Fig 17 MDS922AE 10BT front panel Version 1 0 Page 39 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite Bn Netzwerkl sungen e Mail blackbox black box ch www black box ch BLACK BOX Stand Alone From the constructive point of view MDS921AE 10BT represents a case made of shockproof polystyrene to withstand harsh environmental conditions and containing the basic elements of the device The power supply unit represents an external power supply unit in the form of a plug The panels have the following sockets and LEDs LED Description Alarm Alarm LED Sync xDSL line status
20. 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX e 9 ND NO Non Urgent Alarm contact normally open For Mini Rack units 11 3 Ethernet 10BaseT connector Type RJ 45 Pin e s 11 4 Power connector For MDS922AE 10BT Type Molex 4 pin No SS Version 1 0 Page 85 of 95 ON BLACK BOX Network Services AG f r aktive und passive Q U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX 12 DESCRIPTION OF INTERFACE CABLES 12 1 Direct Ethernet cable The cable contains two pairs Side A Color Side B 1 white orange 1 2 orange white 2 3 white blue 3 6 blue white 6 The cable contains four pairs Side A Color Side B white green green white white orange blue white white blue orange white white brown 4 0oCc1 C0 n9 gt co 4 0oCcC1 C0 gt brown white Version 1 0 Page 86 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black hox ch Netzwerkl sungen
21. adaptation to the line parameters will not take place i e the communication will be at a fixed speed even if the line allows higher speeds COE is configured for fixed speeds while CPE is configured for adaptive mode Connection with an automatic speed regulation Adaptive mode To simplify the setup the devices can automatically adjust the line rate they adapt to the line quality The lack of lost packets during the test time is the criterion of the optimal line rate adjustment The adaptive mode is set on both COE and CPE devices Version 1 0 Page 33 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen BLACK BOX 5 2 2 Ethernet 10BaseT interface The Ethernet interface functions depend on the device operation modes Bridge mode The bridge mode is used to connect LANs The algorithm of the Ethernet traffic encapsulation into ATM is used in accordance with RFC 1483 The MDS92xxx 10BT device implements both the transparent bridge or spanning tree algorithms These algorithms are described in detail in Bridging of local networks Route mode If the bridge functions are not enough the MDS92xxx 10BT device can work as a router The Ethernet traffic is encapsulated in accordance with RFC 1438 RFC 2364 RFC 25
22. addpatin lt pppoa pppoe wanip gt lt port gt lt udpltcp gt lt serverip gt Parameter Wanip Real IP address Port The server port number to which the access is allowed Udp tcp Packet transmission protocols Serverip The local server address 8 3 8 2 Delpatin command The delpatin command deletes the addpatin command pat delpatin all gt pat Command format delpatin lt all gt lt number gt Parameter all Deletes all the connections Number The virtual connection number displayed by the show command 8 3 8 3 Setpat command The setpat command enables and disables real IP address translation in LANs The access list function will be added later gt pat gt setpat pppoa enable gt pat gt Command format setpat lt pppoa pppoe wanip gt lt e gt nable lt d gt isable Parameter Wanip Real IP address lt e gt nable lt d gt isable Enables disables the PAT function 8 3 8 4 Show command The show command displays the PAT configuration gt pat gt show PAT enabled interface Interface IP address IPoA 210 62 2 195 PPPoA 2722 222 222 272 PAT incoming table Version 1 0 Page 69 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX
23. aktive und passive On eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX gt lan Command format setdhcp server disable Parameter Ethernet ip thernet interface IP address Bi EH Subnet mask thernet interface subnet mask DHCP current setting DHCP server current settings DHCP ineffective setting DHCP server settings server disable 8 3 5 List command See 8 2 5 8 3 6 Manage command See 8 2 6 8 3 7 Mode command See 8 2 7 8 3 8 Pat command The pat command puts the system into the menu of NAT address translations settings gt gt pat gt pat Command format pat addpatin delpatin setpat show Parameter addpatin See 8 3 8 1 delpatin See 8 3 8 2 setpat See 8 3 8 3 Show See 8 3 8 4 8 3 8 1 Addpatin command The addpatin command is used to translate private IP addresses into real in order to provide access to LAN resources from WAN gt pat addpatin pppoa 434 udp 192 168 2 134 gt pat Version 1 0 Page 68 of 95 BLACK BOX Network Services AG f r aktive und passive On eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen BLACK BOX Command format
24. e Class D networks The networks of this class have a special multicast address Class D networks can have numbers in the 224 0 0 0 239 255 225 225 range All nodes that have this address will receive a packet with an address that belongs to Class D network The network address of Class D must begin with a sequence of 1110 e Class E networks The networks of this class are not used and they are reserved for future experimental usage Class E networks can have numbers in the 240 0 1 0 247 255 225 225 range The network address of Class E must begin with a sequence of 11110 Version 1 0 Page 19 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten N Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 4 bytes 1 2 3 4 Class A 0 Network Ne Node Ne Class B 1 0 Network No Node Ne Class C 1 1 0 Network Ne Node Ne Class D 1111110 Multicast address Class E 111111110 Reserved Masks Network mask is a number consisting of four bytes It is a decimal number divided by dots and it is used together with the IP address A mask usually contains decimal numbers 255 The use of masks allows providing users with narrow address ranges compared to networks of different classes The least dedicated range without ma
25. layer This protocol is used in Black Box PAM modems Layer Il Layer Il is sometimes called basic The Transmission Control Protocol TCP and User Datagram Protocol UDP function at this level TCP provides reliable packet transmission using virtual links UDP as well as IP enables datagram application packet transmission It functions as a connecting link between network protocols and numerous application processes Layer Layer is called the application layer It contains a great number of application layer protocols and services Such widely used protocols as File Transfer Protocol FTP Telnet terminal emulation protocol Simple Network Management Protocol SNMP used in the e mail WWW protocols and many others belong to this layer Version 1 0 Page 18 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 4 2 2 Address assignment in IP networks Any IP network device is characterized by the addresses of three groups Physical address It is a hexadecimal MAC address of the network adapter or port The MAC address is unique and is 6 byte long the first 3 bytes are the manufacturer s identifier and the other 3 bytes are uniquely assigned by the manufacturer itself For example 18 B7 34 39 AA FC Network address
26. networks If necessary to change internal address system instead of a complete change of all the addresses and this is quite a pain taking process NAT allows translating them according to the new address plan Version 1 0 Page 28 of 95 BLACK BOX Network Services AG Z rcherstrasse 102 CH 8852 Altendorf Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch f r aktive und passive Netzwerkkomponenten ONS ource fiir weltweite Netzwerkl sungen www black box ch BLACK BOX If there is a necessity to divide traffic on the basis of TCP ports NAT makes it possible to map local addresses with one external address using TCP load distribution function NAT functioning The NAT technology defines as it is stated in the RFC 1631 standard the ways of IP address translation used in one network into another network addresses There exist three basic principles of address translation static dynamic and masquerading Static Network Address Translation With the help of this concept NAT can organize translation between the same class networks For example when each of two networks contain one address mask 255 255 255 255 This strategy is the simplest because the translation can be described by a couple of simple logical transformations Let us cite an example of address translation from two Class C networks 194 24 90 and 195 60 3 While passing through NAT to the sender s address
27. term DSL was originally referred to the ISDN technology but later was borrowed by the developers of xDSL technologies 4 1 1 Asymmetric DSL ADSL technology The most popular DSL technology ADSL was developed in Bellcore laboratory in late 1980s Standards Institutes assigned the use of carrier set modulation which acquired the name DMT to ADSL while another leading method received the name of Rate Adaptive DSL RADSL ADSL transmits downstream to the end user and upstream to the net The ADSL technology does not use 25 30 kHz frequencies used for a subscriber s access to public switched telephone network PSTN This provides simultaneous subscriber s access to data transfer networks and PSTN over the same copper pair The original ADSL implies the presence of splitters both on LTU and NTU However ADSL without splitters found its use and acquired the name of ADSL Lite or G lite Later it was standardized by ITU T This standard supports downstream speeds up to 1 5 Mbit s and upstream speeds up to 512 Kbit s 4 1 1 1 ADSL in brief Standard e G lite G 992 1 G DMT e T1 413 1998 e Interoperability between equipment of different manufacturers Version 1 0 Page 9 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten N Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch Transmission rate e Dow
28. the data link layer of the OSI reference model while routing occurs at the network layer It means that routing and bridging use different information while moving it from source to destination It results in different way of implementing their tasks 4 2 4 1 Routing components Routing consists of two basic activities determination of optimal routing paths between source and destination and data transmission through network The latter is called switching Version 1 0 Page 25 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U roe Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen BLACK BOX Optimal path determination The determination of the optimal path is based on different standards of measurement for example path length and metric Routing algorithms calculate path indexes to determine the optimal path to destination To facilitate the process of path determination routing algorithms initialize and maintain routing tables which contain the routing information This information changes depending on the routing algorithm used Routing algorithms fill in routing tables with different information Destination next hop combinations tell a router that a destination can be reached through the shortest path by sending a packet to a particular router representing th
29. 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 8 2 6 Manage command The manage command puts the system into the management submenu of the access to the device gt gt manage gt manage gt Command format manage setpass Parameter Setpass See 8 2 6 1 8 2 6 1 Setpass command The setpass command enables and disables the access password to the system Password setting gt manage gt setpass Password disabled New Password Confirm password again Password has been changed Saving configuration Configuration saved gt manage Command format setpass Parameter none Definitions Password disabled The password is disabled Information line New Password Enter a new password Confirm password Confirm the password again again Password has been The password has been changed changed Information line Saving The new configuration is saved configuration automatically after the dialogue is finished Version 1 0 Page 50 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch Password change gt manage setpass Old Password BLACK BOX ENT New Password press ER to disable x Confirm password again P
30. 16 The MDS92xxx 10BT device implements static and dynamic routing algorithms These algorithms are described in detail in Routing of local networks Note At the point to point connection both devices must be configured either as bridge or as router 5 2 3 ATM interface From side of the G shdsl line interface the MDS92xxx 10BT device acts as a SHDSL modem that uses ATM protocol to transmit data This allows attaching it to DSLAM equipment of different manufacturers In the present version of the firmware ATM implements the following e multiprotocol encapsulation of heterogeneous LAN traffic into ATM cells AAL5 according to RFC 1483 e support of IP protocols over ATM and PPP over ATM e in the router mode there is established one PVC for the bridge RFC 1483 standard eight PVCs for IP over ATM one PVC for PPP over ATM e support of QoS elements UBR CBR VBR nrt e ATM UNI interfaces versions 3 0 3 1 4 0 Version 1 0 Page 34 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black box ch Netzwerkl sungen 5 3 Description of LEDs The following LEDs are used to display normal operation condition and alarm condition BLACK BOX LED Status Off On Blinking Alarm Normal
31. 2 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 Me MRNA e Mail blackbox black box ch www black box ch BLACK BOX Active port Blocking port Fig 5 Network after running STA The spanning tree calculation occurs when the bridge is powered up and whenever a topology change is detected The calculation requires communication between the spanning tree bridges which is implemented through configuration messages Configuration messages contain information identifying the bridge that is assumed to be the root root identifier and the distance from the sending bridge to the root bridge root path cost and also the bridge and port identifier of the sending bridge and the age of information contained in the configuration message Bridges exchange configuration messages at regular intervals typically 1 4 s If a bridge fails causing a topology change neighboring bridges will soon detect the lack of configuration messages and initiate a spanning tree recalculation The MDS92xxx 10BT device implements both transparent bridge and spanning tree algorithms 4 2 4 Routing of networks The word routing means forwarding information through an internetwork from source to destination At least one node must be passed when transmitting data Routing is often contrasted with bridging The main difference between bridging and routing consists in the fact that bridging occurs at
32. 216 71 89 12 Gateway 216 71 89 3 Add another PYC u n In our case this is network 216 71 89 0 with mask 255 255 255 0 After it on request to add next PVC type n and press enter Then save the configuration and restart the modem 15 2 Router 2 The configuration of router 2 will differ only when we enter the IP address of the router wan interface and gateway On request of the router to enter Ethernet IP Subnet mask 0 0 0 0 itis necessary to enter Ethernet IP 198 27 54 10 Subnet mask 0 0 0 0 255 255 255 0 On request of the router to enter WAN IP Gateway itis necessary to enter Version 1 0 Page 94 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX WAN IP 216 71 89 3 Gateway 216 71 89 12 Now it is necessary to reinitialize router 2 After restart of the system let us check operability of the created network Enter the command ping 198 24 67 20 on router 2 The configuration is completed successfully gt gt ping 198 24 67 20 Press ESC to break ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply r
33. 216 71 89 3 Setup Configuration FUNCTION IPOA Ethernet IP 198 24 67 20 Subnet Mask 255 255 255 0 VPI VCI WAN IP Gateway IP det S 35 216 71 99 12 2106 71 89 3 Preserve the configuration y n y Continue quick y n n Configuration will have no effect until after save and restart gt gt Command format quick Version 1 0 Page 76 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen BLACK BOX 8 3 14 Restart command See 8 2 11 8 3 15 Rtable command The rtable puts the system into the menu of routing table settings gt gt rtable rtable Command format rtable addiproute deliproute show Parameter Addiproute Deletes all the connections Deliproute The virtual connection number displayed by the show command Show 8 3 15 1 Addiproute The addiproute command adds a new route in the routing table rtable addiproute 198 24 67 0 216 71 89 3 gt rtable gt Command format addiproute lt destip lt masknum gt gt lt submask gt lt gatewayip gt Parameter Destip lt masknum Address destination network mask Submask Subnet Gatewayip Gateway IP address 8 3 15 2 Deliproute The d
34. ACK BOX of the incoming signal The line interface includes a scheme with integrated into it Digital to Analog and Analog to Digital Converters input and output amplifiers with a programmed amplification and analog filters that are used to convert digital data into a signal and visa versa The device is powered from an in built 3 3 V or 5 V AC DC DC adapter The input voltage of the secondary power supply source is 38 72 0 V or 200 10 Mac The network interface unit converts the data signal layers of the device connected to network interface and data preprocessing in accordance with the configured operation mode of the network interface before the data is transmitted onto the chip 5 2 Operation mode This part contains the description of different operation modes of the device The operation mode can be changed locally from the control computer connected to the device management interface or remotely over Telnet HTTP protocols 5 2 1 G shdsl line interface Master Slave mode To start up a link between two devices one system must be configured as master and the other as slave Moreover the link start up is controlled by the COE Central Office Equipment unit It is impossible to start up a link in the COE COE or CPE CPE configuration The devices are delivered in the CPE Customer Premises Equipment mode default setting Connection at a fixed speed Fixed Mode The devices can communicate at a fixed speed The line speed
35. ADSL technology is exposed to the greatest influence 4 1 6 1 MSDSL in brief Standard e ETSI TS 101 135 e interoperability between equipment of different manufacturers is not provided Transmission rate e 144 2064 Kbit s Straight line code e CAP8 CAP128 4 1 6 2 Transmission medium e one pair e one regenerator Usage e PNOs Internet service providers e access to Internet e integration of LANs Version 1 0 Page 15 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black hox ch Netzwerkl sungen BLACK BOX e creation of trunk lines between PABX e increase of capacity of subscribers lines with the help of Digital Loop Carrier systems e high speed access to SDH networks Restrictions e absence of compatibility with the equipment of other manufacturers e interference with other xDSL services 4 1 7 G shdsl technology The G shdsl technology was engineered as a universal technology of synchronous digital data transmission It became an international standard for symmetric systems The technology supports the transmission over one and two pairs Special stress while developing the technology was laid to provide spectral compatibility with other technologies such as ADSL IDSL MDSL MSDSL 4 1 7 1 G shdsl in brief Stan
36. IP address It is assigned during the configuring of network devices by the administrator and does not depend on the physical address The address has a decimal representation and its length is 4 bytes It consists of two parts network number and node number Depending on the class of the network different quantity of bytes is assigned to the network number IP address classes The network address consists of two logical parts network and node number The values of the first address bits mean what part of the address refers to the network number and what to the node number e Class A networks The network number takes one byte the other three show the node number in the network Class A networks can only have numbers in the 1 0 0 0 126 0 0 0 range Networks with number are not used and number 127 is reserved The node count must be more than 126 but less than 224 The first bit of the network address of Class A must start with O e Class B networks The network and node numbers take two bytes each Class B networks can have numbers in the 128 0 0 0 191 255 0 0 range The node count must be more than 28 but less than 216 The network address of Class B must have the first two bits equal to 10 e Class C networks The network number takes three bytes Class C networks can have numbers in the 192 0 1 0 223 255 225 0 range The node count must no be more than 28 The network address of Class C must have the first three bits equal to 110
37. LED Link User s Ethernet interface status LED Act Transmission status LED over user interface Pwr Power supply LED xDSL RJ11 socket to link DSL lines 10BaseT four RJ45 sockets to link Ethernet network 1 2 3 4 Hub port activation LED Col Collision LED in Ethernet interface DC IN External power adapter entrance socket Monitor DB9F socket to connect management terminal l Grounding bolt MONITOR LA x2 x x Eu dck St Jo Fig 18 MDS921AE 10BT rear panels Version 1 0 Page 40 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black hox ch Netzwerkl sungen BLACK BOX 7 EQUIPMENT INSTALLATION The installation and connection of the Black Box PAM devices is implemented in the following order e before the installation make sure that the set is complete e mount the device in 19 shelf for the devices of the Sub Rack type in 19 rack or cabinet for the devices of the Mini Rack type or on horizontal surface for the devices of the Stand Alone type Note The metal cases in which devices of Mini Rack type and cards of Sub Rack type are mounted must be properly grounded the grounding resistance is no more than 10 Ohm The devices of Mini Rack and Stand Alone type must be grounded through the grounding bolt It i
38. OX Network 2 Network 1 Fig 3 Network with loops Suppose that host A sends an information unit to host B Both bridges receive this information unit and conclude that host A belongs to network 2 Unfortunately after host B receives two copies of the information unit from host A both bridges again receive the same information unit onto their interfaces with network 1 because all hosts receive all messages of broadcast LANs In some cases bridges change their internal tables to indicate that host A is on network 1 When host B rep lies to the information unit of host A both bridges will receive and then ignore these replies since their tables will indicate that this destination address host A is on the same network segment as the information unit source Another disadvantage is cloning proliferation of broadcast messages in networks with loops Assume that the initial information unit of host A is a broadcast Both bridges will forward this information unit endlessly using the available network bandwidth and blocking the transmission of other packets on both segments To solve the above described problems there was engineered the spanning tree algorithm STA It preserves the benefits of loops eliminating their drawbacks The algorithm was published in the IEEE 802 1d specification The STA designates a loop free subset of the network s topology by placing those bridge ports that if active would create loops into a standby bloc
39. T Sets the VBR NRT priority Version 1 0 Page 64 of 95 BLACK BOX Network Services AG f r aktive und passive Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Bib Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX Note The setqos command changes the PVC parameters first configured by the quick command see 8 2 9 or the setwanip command see 8 3 3 4 If the mentioned PVC is not found the system displays an error message 8 3 3 3 Setrip command The setrip command sets the RIP type for the used PVC ipoa setrip 8 35 1 gt ipoa gt Command format setrip lt vpi gt lt vci gt lt 1 2 1 amp 2 0 gt Parameter VPI VCI Sets PVC with the VPI VCI number 1 Sets RIPI Zs Sets RIP2 162 Sets RIPI u 2 0 RIP is not used Note The setrip command changes the PVC parameters first configured by the quick command see 8 2 9 or the setwanip command see 8 3 3 4 If the mentioned PVC is not found the system displays an error message 8 3 3 4 Setwanip command The setwanip command sets the IP address of the SHDSL WAN interface and the gateway of the selected PVC ipoa setwanip 8 35 216 71 89 12 216 71 89 3 gt ipoa gt Command format setwanip lt vpi gt lt vci gt lt wanip lt masknum gt gt lt gatewayip gt Pa
40. To choose the necessary device type lt SN I gt where SN is the slot number Example to select the modem mounted in slot 3 type 9003 1 The unit in the card displays SN after the ECHO command is entered where SN is the slot number After typing ECHO the operator will receive a response from LTU devices as it is shown below Version 1 0 Page 43 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX ECHO J 01 9602 9608 10 9611 12 Management of devices of Mini Rack and Stand Alone type The management terminal is connected to the MONITOR socket DB9 type which is on the front for devices of the Mini Rack type or rear for the devices of the Stand Alone type panels The requirements to the terminal configuration are similar to those of Sub Rack devices After the power is on the computer displays information about the device firmware loading Command structure The device is configured and controlled by using command line interface called command menu To facilitate the process the commands are divided into hierarchical groups called levels The command of the first level can have subcommands All subcommands are on the second level Besides there are special commands that do no
41. VC number CLASS Priority LLC VCMUX Encapsulation type according to RFC1483 Spanning Spanning tree enabled disabled Pkt Filter The used packet filter 8 2 15 Ver command The ver command displays the firmware version gt gt ver Version 1 523102rB XA0 1 523102rB XA0 H02 1302 FR12 230B 15 Jun 2001 11 30 gt gt Command format ver 8 3 Main menu of the router mode 8 3 1 Default command See 8 2 1 8 3 2 Dnsrelay command The dnsrelay command puts the system into the submenu of dns parameters gt gt dnsrelay gt dnsrelay gt Version 1 0 Page 62 of 95 BLACK BOX Network Services AG f r aktive und passive on eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX Command formate dnsrelay setdnsip lt dnsip gt lt retry times gt show Parameter Setdnsip See 8 3 2 1 Show See 8 3 2 2 8 3 2 1 Setdnsip command The setdnsip command sets the DNS server address dnsrelay setdnsip 10 0 0 50 3 Command format dnsrelay setdnsip lt dnsip gt lt retry times Parameter Dnsip IP address of the DNS server Retry times The number of retry connections with the server 8 3 2 2 Show command The show command displays the DNS current settings and server connection status gt dnsrelay show DNS server ip 0 0 0 0 Retry
42. and Any command available in the menu 8 2 2 Home command The home command returns the command line one level up gt shdsl gt home gt gt Version 1 0 Page 47 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten kk Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX Command format home Parameter no 8 2 3 Default command The default command sets the default settings gt gt default The data set to default successfully gt gt Command format default Parameter none 8 2 4 Lan command The Lan command puts the system in the Ethernet submenu gt gt lan gt lan Parameter Setip See 8 2 4 1 Show See 8 2 4 2 8 2 4 1 Setip command The setip command sets the device IP address This address is used for remote management of the device over Telnet or HTTP protocols gt lan setip gt 10 0 1 205 255 0 0 0 gt lan gt Command format setip lt etherip lt masknum gt gt subnet mask Parameter Etherip IP address of the device Masknum Network mask number Subnet mask Subnet mask 8 2 4 2 Show command The show command displays the IP configuration of the device gt lan gt show Ethernet ip 10 0 1 205 Subnet mask 255 0 0 0 Version 1 0 Page 48 of 95 BLACK BOX Network Services AG fiir aktive und passi
43. as been changed changed Information line Saving The new configuration is saved configuration automatically after the dialogue is finished Note The maximal password length should be no more than 20 symbols The password should be of Latin letters and figures The symbol uppercase differs 8 2 7 Mode command The mode command selects the device operation mode bridge or router Bridge mode setting gt gt mode Please select bridge or router b r b b Current mode is bridge gt gt Command format mode Parameter none Definitions Please select Select the operation mode bridge or router bridge router Current mode is The current mode is bridge bridge Router mode setting gt gt mode Please select bridge or router b r b r Current mode is router gt gt Command format mode Parameter none Version 1 0 Page 52 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX Definitions Please select Select the operation mode bridge or router bridge router Current mode is The current mode is bridge router Note The mode command changes the list of available commands in the main menu 8 2 8 Ping command The ping command enables testing and a
44. assword has been c hanged Saving configuration Configuration saved gt manage Command format setpass Parameter none Definitions Old Password New Password press E ter the old password A ter the new password Enter to disable Confirm password again Password has been changed Saving configuration Password disablement manage setpass Old Password Confirm the password again The password has been changed Information line The new configuration is saved automatically after the dialogue is finished New Password press ENT ER to disable Are you sure to disable password y n y Password has been c hanged Saving configuration Configuration saved gt manage Command format setpass Parameter none Definitions Old Password New Password press Press Enter the old password to disable the AN Enter password Enter to disable Version 1 0 Ql eource f r weltweite Netzwerkl sungen Page 51 of 95 BLACK BOX Network Services AG Z rcherstrasse 102 CH 8852 Altendorf Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch f r aktive und passive Netzwerkkomponenten www black box ch BLACK BOX Are you sure to Confirm the desire to disable the disable password password by pressing y y n Password has been The password h
45. ata link layers of the OSI reference model This layer in TCP IP is not regulated but it supports all the popular physical and data link layer standards for LANs this is Ethernet for WANs these are Point to Point Protocols SLIP Frame Relay However when a new LAN and WAN technology appears it is usually included into TCP IP stack because of a specially engineered request for comments RFC which determines the encapsulation method of IP packets into its frames Thus for the encapsulation of IP protocols into ATM cells there was engineered a special RFC 1483 method This method is used in Black Box PAM modems as well Version 1 0 Page 17 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 Me MRNA e Mail blackbox black box ch www black box ch BLACK BOX telnet SMTP OSI modet TCPAP layers stack layers Fig 1 Correspondence of TCP IP layers with the OSI model layers Layer Ill The next layer Layer Ill is a layer of internetwork interconnection which enables packet transmission using different transmission media LANs WANs xDSL etc The Internet Protocol is used as the primary protocol of this layer session layer in terms of the OSI model All protocols connected with data collecting and updating of routing tables such as Routing Internet Protocol RIP refer to this
46. ation International organization that is responsible for the development of a wide range of standards including those relevant to networking ISO developed the OSI reference model defining standards intercommunication ITU International Telecommunication Union Version 1 0 Page 89 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX International body that develops worldwide standards for telecommunications technologies LAN local area network LANs connect workstations servers terminals printers and other devices in a single building or other geographically limited area LANs use special operating systems to transmit data at high speeds Several LANs form wide area networks WAN LTU Line termination unit MSDL Multispeed DSL Special method of DSL structure allowing to adapt the information exchange speed and bandwidth frequency of the line signal depending on the line quality and length NTU Network termination unit PVC Private virtual circuit POTS Plain old telephone service International term for analog telephone lines RJ11 Four or six pin connector used for telephone connections and fax machines and other types of network analog connections RJ45 Eight pin connector u
47. black box ch f r weltweite Netzwerkl sungen BLACK BOX 9 FIRMWARE LOADING The device hardware allows to implement new possibilities and functions by updating its firmware To facilitate the firmware update there exists a command file The upgrade is implemented over TFTP It is recommended to update the firmware in the manufacturer or providers supplier service center One should take into account the following items while loading the firmware e The firmware updating is the most responsible operation in the process of the device exploitation The staff mistakes and the device malfunctioning while updating it can lead to unexpected results e The firmware loading should not be done if it is not necessary One should not install new firmware if the possibilities it has are not used while running the device e The power supply must be stable during the firmware loading If there occurs a failure of power supply and the device starts malfunctioning it is necessary to contact the service center e t is expressly recommended to use the same firmware version in all inter connected devices in order to provide their reliable operation e New firmware versions are available on the manufacturer s web site or in the provider s center 9 1 Firmware loading guide To update the device firmware it is necessary e Extract the file from the archive e Set the password e Open the tftplock key file with the help of a text editor a
48. cmux parameter VPI VCI Sets PVC with the VPI VCI number LLC VCMUX Shows the encapsulation type according to RFC1483 8 2 10 4 Setqos command The setqos command sets the priority for the active PVC gt r1483 gt setqos 8 35 ubr gt r1483 Command format setqos lt vpi gt lt vci gt lt ubr cbr vbr nrt gt Parameter VPI VCI Sets PVC with the VPI VCI number UBR Sets the UBR priority CBR Sets the CBR priority VBR Sets the VBR priority VBRNRT Sets the VBR NRT priority Note The setqos command changes the PVC parameters first configured by the quick command see 8 2 9 or setpvc command see 8 2 10 3 If the mentioned PVC is not found the system displays an error message 8 2 10 5 Setspan command The setspan command enables and disables the spanning tree mode for all PVCs gt r1483 gt setspan disable gt r1483 Command format setspan lt Enable gt lt Disable gt Parameter Enable To enable the spanning tree mode for all PVCs UBR To disable the spanning tree mode for all PVCs Version 1 0 Page 56 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten kk Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 8 2
49. commande 52 8 2 8 DIToaiur i oe mms 53 8 2 9 Quick commande 53 8 22 10 R1483 COMMANA BEE 54 8 2 11 Restart commande 57 8 2 12 Save commande 57 8 2 13 Shdsl commande 58 8 2 14 Show commande 62 98 2 15 Ver command ee ee E MI E EN ALS 62 8 3 Main menu of the router mode nnnm nnne 62 8 3 1 Default commande 62 8 3 2 Dnsrelay command WEE 62 8 3 3 G33looacommand IH 64 8 34 Lan commiard uiuaeces icc tees naar 66 9 3 LIST COMMANG etre Ae Ed 68 8 3 6 Mariage EECH eege 68 8 3 7 Mode commande 68 8 3 9 Patcommiand uim to tte Rx vx Edo Erde PO va edP EN ads EE 68 93 9 Ping COMMANA tc eegene S 70 8 3 10 Pppoa commande 70 8 3 11 Pppoe commande 73 8 3 12 R1483 Commande 74 8 3 13 QUICK command sacos een 76 8 3 14 Restart commande 77 8 3 15 Rtable commande 77 8 3 16 SAVE COMMANG recie teer rde t tri eade Fa kA CO DEPO RN E Torta RUE 78 8 3 17 Shdsl commande 78 8 3 18 Show commande 78 9 9 19 Nee Uu TEE 78 9 FIRMWARE LOADING ccccssesceecsseeeeccesseeeccssseeeecanseceecenseseecesseeeeeasseeesensesees 79 9 1 Firmware loading guide sss nennen 79 10 TECHNICAL SPECIFICATIONS 222 22222000220000002nn0000nan0nn0nnannnnnnnannnnnnn anne 80 daf We ee 80 10 1 1 Monitor Interface 80 10 1 2 Network management interface A 80 Version 1 0 Page 3 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A
50. dard e ITU T G 991 2 e compatibility with the equipment of other manufacturers Transmission rate e 192 2360 Kbit s Line code e TC PAM Transmission medium e one or two pairs e possible installation of up to three regenerators Usage e PNOs Internet service providers Version 1 0 Page 16 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black hox ch Netzwerkl sungen BLACK BOX e access to Internet e integration of LANs e creation of trunk lines between PABX e increase of subscribers lines with the help of Digital Loop Carrier systems e high speed access to SDH networks 4 2 Local area network integration Access to Internet Local area networks facilitate documentation processing access to data in modern companies but the Ethernet technology does not allow to transfer data at long distances and create Wide Area Networks WANs xDSL can be used for the solution of this problem 4 2 1 TCP IP stack structure TCP IP became widely practiced with the development of the Internet all over the world It was engineered earlier than the OSI model and that is why differs greatly Fig 1 shows the TCP IP structure TCP IP protocols are composed of 4 layers Layer IV The lowest layer Layer IV corresponds to the physical and d
51. e e PNOs and providers of Internet services e commercial operators e integration of LANs Restrictions e low speed e impossibility of transmission rate adjusting 4 1 3 High bit rate DSL HDSL technology The HDSL technology allows transmitting synchronous digital data at 1 54 or 2 048 Mbit s speed over two copper pairs This standard was accepted by European Telecommunication Standards Institute 2B1Q or CAP 64 are used as line codes The data transmission rate over each pair is 1168 Kbit s the decrease of linear rate is not provided The 2B1Q encoding HDSL technology allows to connect up to 3 remotely powered regenerators Version 1 0 Page 11 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black hox ch Netzwerkl sungen BLACK BOX 4 1 3 1 HDSL in brief Standard e ETSI TS 101 135 e interoperability between equipment of different manufacturers is not provided Transmission rate e 1168 Kbit s over each pair 2 Mbps over two pairs Line code e 2B1Q e CAP 64 Transmission medium e two pairs e possibility of the regenerator s installation up to 3 Usage e PNOs e long haul E1 transmission e organization of trunk lines between PABX e increase of capacity of subscribers lines with the help of Digital Loop Carrier systems
52. e next hop on the way to the final destination When the router receives an incoming packet it checks the destination address and makes an attempt to associate this address with a next hop An example of a routing table is shown below Destination address Next hop 27 Router A 57 Router B 17 Router C 24 Router A 52 Router A 16 Router B 26 Router A Routing table also contain other information Metrics represent information about the desirability of a path or a route Routers compare metrics to determine the optimal routes Metrics differ depending on the routing algorithms being used A variety of common metrics will be described below in this chapter Routers communicate with each other and maintain their routing tables by transmitting various messages One of these messages is the routing update The routing update usually includes all or a part of a routing table By analyzing routing update information from all routers any router can build a detailed picture of network topology Another example of a message exchange between routers is a link state advertisement Link state advertisements inform other routers about sender s link states Link information also can be used to build a full picture of network topology After the network topology is determined routers can determine optimal paths to destinations Version 1 0 Page 26 of 95 BLACK BOX Network Services AG f r aktive und pa
53. e 72 2320 kbit sw Line code TC PAM Version 1 0 ONS ource fiir weltweite Netzwerkl sungen BLACK BOX Network Services AG Z rcherstrasse 102 CH 8852 Altendorf Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch Page 80 of 95 f r aktive und passive Netzwerkkomponenten www black box ch BLACK BOX For transmission rate Kbit s Frequency transmission range kHz 200 0 67 264 0 88 392 0 131 520 0 173 776 0 258 1032 0 344 1544 0 515 2056 0 685 10 1 4 Network interface Parameter Description Transmission rate 10 Mbit s Transmission medium UTP 10BASE T Standard Ethernet ISO IEC 8802 3 Bridge IEEE 802 1d Encapsulation RFC1483 RFC2364 RFC2516 Routing RIP1 RIP2 static routing Protocols NAT PPP PAP CHAP DHCP 10 2 Power supply Parameter Description Input direct current voltage range 38 72 Volt 12 Volt for MDS921AE 10BT Input alternating current voltage 220 Volt 10 40 60 Hz range Power consumption lt 10 Watt Version 1 0 Page 81 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX 10 2 1 Protection against dangerous affects T
54. eater station where power source is available 4 1 4 1 EXTRAns in brief Standard e Patent Ne 2001104235 20 004956 of the Federal Institute of Industrial Property e interoperability with the equipment of other manufacturers is not provided Transmission rate e 144 2064 Kbit s Line code e CAP EXTRAns Transmission medium e two pairs e possibility of the regenerator s installation up to 6 Usage e PNOs Competitive Local Exchange Carriers CLECs e creation of long haul digital routes with many regenerating segments e organization of trunk lines between PABX e increase of capacity of subscribers lines with the help of Digital Loop Carrier systems Version 1 0 Page 13 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 Me MRNA e Mail blackbox black box ch www black box ch BLACK BOX e high speed access to SDH networks Restrictions e two pairs are used for full stream transmission 4 1 5 Multispeed DSL MDSL technology The term SDSL was used for several years on the market It was referred to all solutions meant for the synchronous digital stream transmission over one pair This technology supports the possibility of line speed regulation over long haul distances The technology is implemented in MDSL and MSDSL the latter one having a different line code The MDSL
55. eceived fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 ip ping reply received fron 198 24 67 20 al Version 1 0 Page 95 of 95 BLACK BOX Network Services AG f r aktive und passive On Gel rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 Pee e Mail blackbox black box ch www black box ch
56. ed DSL MSDSL technology 15 4 1 7 G shdsl Rieti Io M 16 4 2 Local area network integration Access to Internet ssssssssesusse 17 GC e Ke Te E 17 4 2 2 Address assignment in IP networks cece eeeeeeeeeeeeeeeeeeeeeeeeaaaes 19 4 2 3 Bridging of local networks u 21 4 2 4 Routing of ee in EE 25 5 DESCRIPTION OF THE DEVICE iiiritna paca exkUE anna Chin UC AER ECCO UE RR cn Gne 31 SAA ele CE 31 5 2 Operation mode nennen nennt nne nennen nnne nens 33 5 2 1 EECHER ee 33 5 2 2 Ethernet 10BaseT interface uuununsnennnnnnnnannnnnnnnnnnnnnananannennnn 34 5 2 3 ATM interface one era 34 5 3 Description Of LEDS sss EE LAARA ERa TREE 35 6 MECHANIC DESIGN nennen ie 36 7 EQUIPMENT INSTALLATIQON ee een 41 8 PROGRAMMING GUIDE ati 000002 iau En aan n d D ma ac 43 M MEN reeL Pet cR 43 8 2 Main menu of the bridge mode eene en 47 8 2 1 Help Bee Tu TE 47 8 2 2 Home command ME 47 Version 1 0 Page 2 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 8 2 3 Default commande 48 8 2 4 Lancommand nennen nenne ner ense ner ense nns en nnne 48 8 2 5 List COMMANG nenn Den e saec b a a E EE FEE EP EE EE Ze 49 8 2 6 Manage COMIMANG m 50 8 2 Mode
57. el 41 0 55 451 70 70 Fax 41 0 55 451 70 75 Beggener e Mail blackbox black box ch www black box ch BLACK BOX 8 PROGRAMMING GUIDE 8 1 Introduction The equipment has built in management and self testing functions The devices can be connected through the RS232 interface to the terminal or computer with a possibility of the terminal emulation for controlling and configuring Note The device primarily configured through the RS232 interface can be remotely controlled over the Telnet or HTTP protocols Management of devices of Sub Rack type The device rear panel contains the TTL management bus organized according to the point multipoint scheme The TTL RS232 layer translator is on the rear panel of the device The socket for the connection to the terminal is on the rear panel as well If ACU and CMU are installed in subrack the management socket is on the front panel To connect the terminal it is necessary to use RS232 cable While attaching the cable to the computer COM port make sure the port is not occupied by the other device drivers for example mouse The terminal must be configured in the following way e Transmission rate 9600 Kbit s e Transmission format 8 N 1 e Flow management XON XOFF e Terminal type VT100 At any one time only one device in the card can be logically connected to the management interface The device is chosen in accordance with the slot number in which it is mounted
58. eliproute command deletes a route in the routing table gt rtable gt deliproute all gt rtable gt Command format deliproute lt all gt lt number gt Version 1 0 Page 77 of 95 BLACK BOX Network Services AG fiir aktive und passive On eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www hlack hox ch f r weltweite Netzwerkl sungen BLACK BOX Parameter all Deletes all routes from the table number Deletes the route with the number displayed by the show command 8 3 15 3 Show command The show command displays the routing table gt rtable show Routing Table No Destination IP SubMask Gateway IP 1 0 0 0 0 0 0 0 0 21 6 71 89 3 2 198 24 67 0 255 255 255 0 216 71 89 3 effective routing table Routing table is empty gt rtable gt Command format show Parameter No The routing number Destination IP Destination address SubMask Subnet mask Gateway IP Gateway IP address 8 3 16 Save command See 8 2 12 8 3 17 Shdsl command See 8 2 13 8 3 18 Show command See 8 2 14 8 3 19 Ver command See 8 2 15 Version 1 0 Page 78 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www
59. erface status LED Act Transmission status LED over user interface xDSL RJ11 socket to connect DSL lines 10BaseT four RJ45 sockets to connect Ethernet network 1 2 3 4 Hub port activation LED Col Collision LED in Ethernet interface Version 1 0 Page 36 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 Me MRNA e Mail blackbox black box ch www black box ch BLACK BOX New Generation C Fig 16 MDS920C 10BT NG front panel Version 1 0 Page 37 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen BLACK BOX Mini Rack From the constructive point of view MDS922AE 10BT represents a case made of stainless steel and containing the basic elements of the device Fig 17 shows the front panel The front panel has the following sockets and LEDs LED Description Alarm Alarm LED Sync xDSL line status LED Link User s Ethernet interface status LED Act Transmission status LED over user interface Pwr Power supply LED XDSL RJ11 socket to link DSL lines 10BaseT four RJ45 sockets to link Ethernet network 1 2 3
60. erstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX gt lan Command format dhcpserver lt range1 startIP gt range1 endIP gt range2 startIP gt range2 endIP gt lt max lease time gt dhcpserver dns dns ip1 gt lt dns ip2 gt Parameter Rangel startIP The starting IP address of the first range Rangel endIP The end IP address of the first range Range2 startIP The starting IP address of the second range Range2 endIP The end IP address of the second range Max lease time Lease time of the address Dns ipl IP address of the first DNS Dns ip2 IP address of the second DNS 8 3 4 2 Setdhcp command The setdhcp command activates or deactivates the DHCP server gt lan setdhcp disable DHCP is set to disable gt lan Command format setdhcp server disable Parameter Server DHCP server is active Disable DHCP server is not active 8 3 4 3 Setip command See 8 2 4 1 8 3 4 4 Show command The show command displays the configuration of the built in DHCP server and the Ethernet interface address lan show Ethernet ip 198 24 67 20 Subnet mask 255 255 255 0 DHCP current setting disable DHCP ineffective setting disable Version 1 0 Page 67 of 95 BLACK BOX Network Services AG f r
61. ferent manufacturers The units of this family subdivided into network termination NTU and line termination units LTU can be installed at the customer user premises and at the operator provider nodes respectively NTU NTU connections for instance for the connection of two local networks or LTU LTU connections for the connection of large nodes can be used to organize point to point connection It is possible to power units locally with 48 Vpc telephone station batteries and with 220 Vac This family of devices has three mechanic designs 1 Sub Rack MDS920C 10BT is a unit to be mounted in 19 chassis MDS920AE RMDC 2 Mini Rack MDS922AE 10BT is a unit of 1U height 44 5 mm to be mounted in 19 rack cabinet 3 Stand Alone MDS921AE 10BT is a compact unit to be mounted on the tabletop desktop or another horizontal surface Version 1 0 Page 6 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U roe Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen BLACK BOX The units have all the possibilities for monitoring and management Different management protocols that are used in the firmware of the family allow one to implement 1 local management using a computer which supports the VT 100 type emulation of the terminal 2 remote monitoring and con
62. field the packet addressed from the host 194 24 90 13 will contain a change in the IP header from 194 24 90 13 to 195 60 3 13 Dynamic Address Translation Dynamic translation is necessary when the number of addresses internal and external being translated is different however dynamic translation is sometimes used when static translation does not work The number of intercommunicating hosts will be limited in any case by the number of free available addresses on the NAT interface Dynamic NAT is more complicated because it requires to keep track of intercommunicating hosts and possibly even of connections in case when the information content must be modified at Layer 4 TCP for example For example it is necessary to translate dynamically all IP addresses in Class B network 138 201 into addresses of Class C network 190 200 112 Then each new connection receives an address from Class C network if there are available addresses there This technology in contrast with static translation introduces a new notion NAT table It is a rendition table of internal addresses and NAT interface addresses hereinafter NAT addresses Masquerading NAPT PAT The Port Address Translation is another case of dynamic translation Here we have only one external address behind which internal addresses are hidden there can be as many internal addresses as possible In contrast to the original dynamic translation PAT does not mean that
63. figuring over Telnet protocol remote monitoring and configuring over HTTP protocol 4 support of the CMU SNMP agent for remote monitoring and configuring while working as a part of sophisticated networks under Simple Network Management Protocol SNMP The use of Flash memory chips as read only memory ROM facilitates the loading of new firmware versions Version 1 0 Page 7 of 95 BLACK BOX Network Services AG f r aktive und passive On eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten ehr Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 RR Reha e Mail blackbox black box ch www black hox ch BLACK BOX 3 SPECIFICATION e High speed symmetric data transfer over a 135 ohm physical twisted copper pair according to G shdsl ITU G 991 2 e TC PAM line encoding e line speed from 72 Kbit s to 2320 Kbit s e automatic and manual line speed adjusting e Ethernet 10Base T interface e bridge and router function e built in 4 port HUB on e AAL5 for ATM over SHDSL e function of traffic priorities e DNS support e built in DHCP server e NAT support e static and dynamic routing RIP e built in function of diagnostics and self testing e low power consumption e console port for local management e TELNET and HTTP management e built in SNMP agent e possibility of remote firmware loading through TFTP protocol e different types of mechanic design Version 1 0 BLACK BOX Network Se
64. g data in buffers and transmitting it over a serial link This can be achieved only for short bursts of data that do not overwhelm the bridge s buffering capacity The MDS92xxx 10BT device implements transparent bridge and spanning tree algorithms The transparent bridge is called so because its presence and operation is transparent to all network hosts A bridge builds its own address table while passively monitoring the traffic At this stage it extracts the information about source addresses of data frames The source address shows that it belongs to a certain node of this or that network segment Fig 2 shows the creation of an Version 1 0 Page 21 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U roe Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen BLACK BOX address table of a simple network consisting of two segments Fig 2 Simple network MAC address Bridge 1 1 2 1 3 2 4 2 Each port work as an end node of the network segment Originally the bridge does not know what nodes with what MAC addresses are connected to each of its port That is why it sends any received frame to all ports excluding the port from which the frame was received Simultaneously the bridge studies the source address of the frame and f
65. h the root bridge can be reached with the least aggregate path cost This value i e the least aggregate path cost to the root is called the root path cost Finally designated bridges and their designated ports are determined A designated bridge is the bridge on each LAN that provides the minimum root path cost A LAN s designated bridge is the only bridge allowed to forward information units to and from the LAN for which it is the designated bridge A LAN s designated port is the port that connects it to the designated bridge In some cases two or more bridges can have the same root path cost For example in Fig 4 both Bridges 4 and 5 can reach Bridge 1 the root bridge with a path cost of 10 In this case the bridge identifiers are used again this time to determine the designated bridges The priority is given to LAN V of Bridge 4 over LAN V port of Bridge 5 Using this process all but one of the bridges directly connected to each LAN are eliminated thereby removing all loops between two LANs The STA also eliminates loops involving more than two LANs while still preserving connectivity Fig 5 Network after running STA shows the results of implementing the STA to the network shown in Fig 4 Comparison of these two figures illustrates that the STA placed Bridge 3 and Bridge 5 ports to LAN V into the standby mode Version 1 0 Page 24 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U roe Z rcherstrasse 10
66. he protection of the equipment against dangerous interfering affects meets the requirements of ITU U K20 K 21 10 2 2 Surge safety Parameter Description Note The resistance between the ground terminal and isolated parts of the device lt 0 1 Ohm Insulation resistance of the device 20 MOhm normal climatic electrical circuit conditions gt 5 MOhm high temperature 2 1 MOhm high humidity Test voltage for ungrounded 500 V amplitude normal electrical circuit relative to the climatic conditions case of the device 300 V amplitude high humidity Test voltage of isolation of 500 V amplitude normal Without electrical circuit galvanically climatic conditions discharge disconnected with the ground 300 V amplitude high within 1 humidity minute Test voltage of 50 Hz accepted by 2000 Vms relative to Within 2 s the line interface ungrounded device elements gt 1500 Vims relative to grounded device elements 10 3 10 3 Climatic conditions The units are engineered to operate in the following climatic conditions air temperature 5 45 C relative air humidity 9596 at 25 C The equipment preserves all its characteristics at 450 Torr 60 KPa The storage conditions 50 50 C The equipment can withstand all means of transport including airplanes i e it withstands the 90 Torr 12 KPa atmospheric pressure at 50 C Version 1 0 Page 82 of 95 BLACK BOX Network Se
67. ills its table what port of a MAC address belongs to this or that segment Later the bridge uses its table to forward the traffic When one of the bridge interfaces receives the information unit the bridge seeks for the destination address in its internal table If the table contains an association between the destination address and any of the ports of this bridge excluding the one the information unit was received on then the unit is forwarded from the indicated port If such an association is not established the information is flooded to all ports except the inbound port Broadcast and multicast address messages are also flooded as in the previous case Transparent bridges isolate in segment traffic thus reducing the traffic clearly seen in each individual segment This improves the response time of the network seen by the user The extent of the traffic shortening and response time improvement depends on the volume of intersegment traffic relative to total traffic as well as the volume of the broadcast and multicast traffic One of the drawbacks that interfere with the transparent bridge algorithm is the presence of network loops It is shown in Fig 3 Version 1 0 Page 22 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U roe Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten z Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK B
68. king mode Blocking bridge ports can be activated in the event of primary link failure providing a new path through the internetwork Figs 4 and 5 illustrate how the STA eliminates loops Version 1 0 Page 23 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U roe Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX D Designated port R Rat port V through 2 LANs Fig 4 Network before running STA The STA calls for each bridge to be assigned a unique identifier Typically this identifier is one of the bridge s Media Access Control MAC addresses plus a priority Each port in every bridge is also assigned a unique within that bridge identifier typically its own MAC address Finally each bridge port is associated with a path cost The path cost represents the cost of transmitting a unit onto a LAN through that port In Fig 4 path costs are noted on the lines emanating from each bridge Path costs are usually defaulted but can be assigned manually by network administrators The first step in spanning tree calculation is the selection of the root bridge which is the bridge with the lowest value bridge identifier In Fig 4 the root bridge is Bridge 1 Next the root port on all other bridges is determined A bridge root port is the port through whic
69. llows checking the network efficiency gt gt ping 10 0 1 55 gt gt Press ESC to break gt gt ip ping reply received from 10 0 1 55 gt gt ip ping reply received from 10 0 1 55 gt gt ip ping no reply received gt gt ping 299 999 gt gt Invalid IP gt gt Command format ping lt ipaddress gt Parameter Ipaddress The IP address of the destination device Definitions ip ping reply The packet reached the destination received from successfully XXX XXX XXX XXX ip ping no reply The packet did not reach the received destination Invalid IP The invalid IP address of the destination device Note The ping command can be stopped by pressing Esc 8 2 9 Quick command The quick command allows configuring the modem s parameters gt gt quick Version 1 0 Page 53 of 95 BLACK BOX Network Services AG f r aktive und passive On eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 0 PVC existed 8 PVCs available VPI 0 4095 8 VCI 1 65535 35 Packet Filter Any Ip Pppoe a Add another PVC y n n Enable Spanning tree y n n Configuration MODE Bridge FUNCTION R1483 Spanning Tree Disable VPI VCI Package filter 1 8 35 ANY Preser
70. meter Coe The device is configured as master Cpe The device is configured as slave Note When the two modems are connected according to the point to point algorithm one of the devices must be configured as the master and the other as the slave 8 2 13 4 Annex command The annex command sets the line code type in accordance with ITU T G shdsl gt shdsl gt annex b gt shdsl Command format annex a b Parameter a Sets the mode most suitable for the USA and Canada b Sets the mode most suitable for Europe Version 1 0 Page 59 of 95 BLACK BOX Network Services AG fiir aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten kk Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 8 2 13 5 Fix command The fix command sets the manual mode of line rate adjustment shdsl fix 768 shdsl Command format fix rate Parameter rate Displays the rate at which the connection will be established Rate is calculated according to the following expression n 64 i 8 8 where n is efficient capacity 1 lt n lt 36 and i is a header i 0 1 Rate can take the following values 2320 2312 2256 2248 2192 2184 2128 2120 2064 2056 2000 1992 1936 1928 1872 1864 1808 1800 1744 1736 1680 1672 1616 1608 1552 1544 1488 1480 1424 1416 1300 1352
71. n about packet destination next hop and hop counts metrics The routing table can also contain other information such as timers Destination Next hop Distance Timers Flags Network A Router 1 3 t1 t2 t3 X Y Network B Router 2 5 t1 t2 t3 X y Network C Router 1 2 t1 t2 t3 X Y RIP supports only optimal routes to destinations If new information provides a better route this information updates the old one Changes in the network topology can cause changes in the routes resulting for example in creation of better routes to a definite destination If the network topology changes these changes are reflected in updating messages For example when a router finds a failure of one of the links or another router it recalculates its own routes and sends out routing updates Each router that receives routing update messages includes changes to its tables and sends them out 4 2 4 3 Internet Access through LANs NAT The Network Address Translation technology allows one to solve to main problems the Internet faces now This is a restriction of the address space of IP and routing scaling If necessary to get an Internet access when the number of network nodes connected to the Internet provider is bigger that the number of IP addresses NAT allows private IP networks using unregistered addresses to get an access to Internet resources NAT functions are configured on a border router dividing Intranet and Internet
72. nd add your password in it e With the help of the ping command make sure that the system responds e In DOS enter xupgrade lt the device IP address gt for example xupgrade 192 168 1 1 e The new firmware version starts operating after the restart of the system Note It is recommended to follow the default command see 8 2 1 and to save the configuration before installing a new firmware version Version 1 0 Page 79 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX 10 TECHNICAL SPECIFICATIONS 10 1 Interfaces 10 1 1 Monitor interface Parameter Description Interface ITU T V 24 V 28 RS232 Transmission mode Asynchronous Interface type DCE Terminal emulation mode VT100 Transmission format 8 N 1 Flow management XON XOFF Transmission rate 2400 57600 bit s 10 1 2 Network management interface Parameter Description Interface Ethernet ISO IEC 8802 3 Supported protocols Telnet SNMP MIB II ILMI TFTP HTTP 10 1 3 SHDSL interface Parameter Description Transmission standard ITU T G 991 2 G shdsl Cable Symmetrical wire cables Number of pairs 1 Transmission rat
73. nstream e up to 6 8 Mbit s e up to 1 5 Mbit s for G lite e Upstream e up to 640 Kbit s e up to 512 Kbit s for G lite Line code e DMT e CAP Number of pairs e one pair Usage e public network operators PNO and Internet service providers Restrictions e Asymmetry 4 1 2 ISDN DSL technology BLACK BOX The IDSL technology is based on the ISDN technology but without switching IDSL uses 2B1Q line encoding and has two B and one D channel capacity which allows transmitting data bi directional at 144 Kbit s The necessity to transmit simultaneously voice and data served as a powerful spur to the further development of IDSL Thus the channel capacity is divided between voice unit and digital interface NTU 128 Voice is an example of a device implementing this mode Version 1 0 BLACK BOX Network Services AG Ori eo U rce Z rcherstrasse 102 CH 8852 Altendorf Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite Netzwerkl sungen e Mail blackbox black box ch Page 10 of 95 f r aktive und passive Netzwerkkomponenten www black box ch BLACK BOX 4 1 2 1 IDSL in brief Standard e T1 601 e interoperability between equipment of different manufacturers at the U interface layer Transmission rate e up to 144 Kbit s e up to 64 Kbit s voice channel in NTU 128 Voice Line code e 2B1Q Transmission medium e one pair e possibility of the regenerator s installation Usag
74. oded Pulse Amplitude Modulation The essence of this encoding method consists of an increase of layer numbers encoding states from 4 as in 2B1Q to 16 and use of a special error correction mechanism This family of modems with different network interfaces G 703 Nx64 V 35 V 36 X 21 and Ethernet 10Base T can be used as transfer systems between multiplexers routers and cross connection devices in different networks for example 1 for the organization of E1 2048 Kbit s channels between Public automatic branch exchange PABX Digital Loop Carrier systems TDM multiplexing and terminal stations of mobile networks as well as their connection to SDH networks 2 for the organization of high speed communication channels data links in data transfer networks and connection of Internet providers access nodes 3 for the connection of remote working stations computers and small Ethernet branches to the office computer network and for integration of IP and IPX network segments for providing Internet access etc The Ethernet 10BaseT interface allows an operator to provide services for the interconnection of territorially distributed local networks to provide high speed access to Internet and to use MDS921AE 10BT MDS920C 10BT and MDS922AE 10BT devices in applications that require high speed data transmission The use of ATM technology makes it possible to connect MDS921AE 10BT MDS920C 10BT and MDS922AE 10BT units to DSLAM devices of dif
75. operation Failure or start of Low quality of line the device BER gt 15 Synch DSL line is not Synchronization is Synchronization is in connected set up process Link The Ethernet The Ethernet Packet exchange network is off network is on between shdsl and Ethernet Act Ethernet packet is received Pwr Power is off Power is on 1 2 3 4 The hub port is The hub port is Ethernet packet is not active active received Col Collision in the Ethernet interface Version 1 0 Page 35 of 95 BLACK BOX Network Services AG Z rcherstrasse 102 CH 8852 Altendorf Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch f r aktive und passive Netzwerkkomponenten ONS ource fiir weltweite Netzwerkl sungen www black box ch BLACK BOX 6 MECHANIC DESIGN The Black Box devices have three mechanic designs 1 Sub Rack is a unit to be mounted in 19 chassis MDS920AE RMDO 2 Mini Rack is a unit of 1U height 44 5 mm to be mounted in 19 rack or a cabinet 3 Stand Alone is a compact unit to be mounted on the tabletop desktop or another horizontal surface Sub Rack From the constructive point of view MDS92xxx 10BT NG consists of two printed circuit boards PCBs and a front panel Fig 16 shows the front panel The front panel has the following sockets and LEDs LED Description Alarm Alarm LED Sync xDSL line status LED Link User s Ethernet int
76. poa gt echo 120 gt pppoa gt Command format echo lt interval time gt Parameter Interval Intervals between LCP responses The interval time lies in the range from 0 to 65535 seconds The default setting is 60 s If the parameter is 0 the function is disabled 8 3 10 5 Setllc command The setllc command enables and disables the logical connection control gt pppoa gt setllc enable gt pppoa gt Command format setllc lt e gt nable lt d gt isable Parameter lt e gt nable The function of logical connection control lt d gt isable enabled disabled 8 3 10 6 Setqos command The setqos command sets the priority for the active connection of PPP over ATM gt pppoa gt setgos ubr gt pppoa gt Command format setqos lt ubr cbr gt Parameter UBR Sets the UBR priority CBR Sets the CBR priority Version 1 0 Page 72 of 95 BLACK BOX Network Services AG f r aktive und passive On eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten ehr Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 RR Reha e Mail blackbox black box ch www black hox ch BLACK BOX 8 3 10 7 Setrip command The setrip command sets the RIP type for the active connection of PPP over ATM gt pppoa gt setrip 1 gt pppoa gt Command format setrip 1 2 1 amp 2 0 Parameter 1 Sets RIPI 23 Sets RIP2 162 Sets RIP1 u 2 0 RIP is not used 8 3
77. pppoa gt adduser 8 35 Access chap New Password Confirm password again User account added successfully gt pppoa gt Command format adduser lt vpi gt lt vci gt lt userid gt lt chap pap gt Parameter VPI VCI Defines the used PVC with the VPI VCI number Userid User s name Chap pap Access check protocol 8 3 10 2 Chpass command The chpass command changes the password on PPP over ATM connections The password can contain no more that 20 letters or figures The uppercase and lowercase differ gt pppoa gt chpass Old Password x New Password Confirm password again Password has been changed gt pppoa gt Command format chpass Parameter None 8 3 10 3 Deluser command The deluser command deletes the current PPP over ATM connection gt pppoa gt deluser gt pppoa gt Command format deluser Parameter None Version 1 0 Page 71 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten kk Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 8 3 10 4 Echo command The echo command enables and disables the LCP response the process of the control connection LCP is used to confirm the established PPP connection the interval time between the LCP responses can be changed gt pp
78. r mode Page 46 of 95 Version 1 0 f r aktive und passive www hlack hox ch Netzwerkkomponenten e Mail blackbox black box ch z o oe lt 5 ne Ek Lu mo D eco OO xI 27 N a zo SE ay lt i SE 2 5 N Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite Netzwerkl sungen Mource BLACK BOX 8 2 Main menu of the bridge mode After the power is switched on the terminal screen displays the booting process NBfs2 Helium Family PP flash boot 6 1 0 25 22 October 1999 c Copyright BLACK BOX 1999 SDRAM size 0x800000 type 0x2 NPn Booting System start gt gt The symbol gt gt means that the system is ready to accept commands Security password from an unauthorized access The system implements a security from an unauthorized access When the security from an unauthorized access is activated the system demands to enter the password password gt gt The factory setting assumes no password protection If nevertheless after installation the modem asks for a password it might happen for example if somebody used or tested the device before please contact nearest Black Box service center or technical support team 8 2 1 Help command The help command displays prompts with a list of available programs One can receive detailed prompts about each command gt gt help gt gt Command format help command Parameter Comm
79. rameter VPI VCI Sets PVC with the VPI VCI number Wanip Sets the IP address of the device WAN interface Musknum Sets the mask number Gatewayip Sets the gateway IP address Version 1 0 Page 65 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten kk Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 8 3 3 5 Show command The show command displays the IP configuration over ATM gt ipoa gt show IPoA setting FUNCTION VPI VC CLASS Wan IP MaskNum GatewayIP RIP IPoA 8 35 ubr 216 71 89 12 24 216 71 89 3 0 Command format show Definitions VPI VCI Defines the used PVC with the VPI VC number Wanip MaskNum IP address subnet mask GatewayIlP Gateway IP address RIP The used RIP 8 3 4 Lan command The lan command puts the system into the menu of local Ethernet interface parameter settings gt gt lan gt lan Command format lan dhcpserver setdhcp setip show Parameter Dhcpserver See 8 3 4 1 Setdhcp See 8 3 4 2 Setip See 8 3 4 3 Show See 8 3 4 4 8 3 4 1 Dhcpserver command The dhcpserver command sets the operation mode of the in built DHCP server DHCP Mode Server Version 1 0 Page 66 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rch
80. rvices AG Ori eo U rce Z rcherstrasse 102 CH 8852 Altendorf Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite Netzwerkl sungen e Mail blackbox black box ch Page 8 of 95 f r aktive und passive Netzwerkkomponenten www black box ch BLACK BOX 4 TECHNOLOGIES 4 1 xDSL technology background xDSL technology appeared due to the growing user s demand to high speed digital stream transfer over telephone copper pairs Operators had to organize the interconnection of backbone stations of cellular networks Digital Loop Carrier systems interstation connection and to provide high speed Internet access at minimal expenses In these circumstances it was reasonable to use the existing telephone cables The new technology acquired the name xDSL Digital Subscriber Line ke d key x is a variable in the DSL technology where every word has its own meaning Thus the term Digital means that not an analogue but digital signal that was processed by one of line encoding methods is transmitted over pairs In fact the term xDSL points at this or that line code the distance of data transfer and maximal connection speed depend on it However some technologies for example ADSL can use one of the two line codes either Discrete Multi Tone DMT or Carrierless Amplitude Phase CAP The term Subscriber Line is referred to physical copper pairs of telephone cable or in simple words to direct wires The
81. rvices AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX 10 4 10 4 Guarantee The Mean Time Between Failure is not less than 3x10 hours The operating lifetime is no less than 20 years 10 5 10 5 Physical dimensions Stand Alone dimensions weight 220 mm x 170 mm x 40 mm 0 5 kg Mini Rack dimensions weight 483 mm x 230 mm x 43 5 mm 3 kg Sub Rack dimensions weight 233 mm x 220 mm x 30 mm 1 kg Version 1 0 Page 83 of 95 ON BLACK BOX Network Services AG f r aktive und passive Q U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite Netzwerkl sungen e Mail blackbox black box ch www black box ch BLACK BOX 11 CONNECTORS DESCRIPTION 11 1 SHDSL connector Type RJ 11 4 pin hd 11 2 Monitor connector Type Sub D9 female DB9 female hw p o 01 SSS 2 mo eeng OOOO a Jensen IL s sew a o s pA c _ J rentAarm contact normaly dose ForMinkRackunis s wo Nc Non UgentAlamn contac normaly dose For Min Rack units Version 1 0 Page 84 of 95 ON BLACK BOX Network Services AG f r aktive und passive O U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel
82. rvices AG f r aktive und passive ON eo U roe Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX ic D 3 7 S Lal B x o 2 Jel Ja JS jal J x 1 amp L sp lE EMNENE NENS Lei Is Isl Is IS Ko 8 o gt T E m ki D 2 c o o s Izl 9 j S GIS EA E 518 4 3 amp IS SI e iu los x js r iz 2e LO a x EI He v o ml L S da EI o o 7 bd o E Fig 19 Command tree of bridge mode Version 1 0 Page 45 of 95 BLACK BOX Network Services AG f r aktive und passive ON Gel rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www hlack hox ch f r weltweite Netzwerkl sungen BLACK BOX ARS A jdepe sneg xaul c c MARNE Euuuet aiqeua yneyap ANOS aynoudyap jeyioadippe agep DCH AMOUS AMOUS ones AMOUS ETE ess ayes Cans sobs duuss Tags oe duas essner sches ssedus ssedus dueayap sasnppe sasnppe ESF Ld aoddd eoddd ssedua unediep doupies sebes ous Som Sud 3d ron ateuew su wer eoa en ONS Mel 150x314 ynejep Fig 20 Command tree of route
83. s AG f r aktive und passive ON eo U roe Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX The dynamic address assignment allows one to create IP networks in which the number of nodes exceeds the number of the IP addresses administrator has 4 2 3 Bridging of local networks Bridges are the simplest devices for logical network structuring They divide the transmission network medium into segments logical segments forwarding data from one segment to another if such a transmission is necessary i e if the destination address belongs to another subnet Bridges are data communication devices that operate at the data link layer of the OSI reference model They use addresses of computers and other devices Bridges control data flow handles transmission errors provides physical as opposed to logical addressing and manage access to the physical medium Bridges provide these functions by using various link layer protocols that dictate specific flow control error handling and addressing and medium access algorithms The primary advantage of bridging is the upper layer protocol transparency Because bridges operate at the data link layer they are not required to examine upper layer information It means that that they can rapidly forward traffic representing any network layer protocol
84. s strictly prohibited to use the device until it is properly grounded e Connect xDSL cable to xDSL line port with the help of RJ11 connector e Plug in the free end of xDSL cable to the cable box or intermediate cross Note The xDSL cable grounding must be connected to the line cable shield to reduce noise interference of the system e Connect the Data terminal equipment and the network interface socket with the appropriate cable e Connect Monitor socket on the device and the computer serial port with the help of RS232 9 pin cable Note The controlling computer must be grounded through the same grounding circuit as the Black Box device Version 1 0 Page 41 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX e Switch the device on The initialization takes of about 20 seconds When the time lapses the device is ready for configuring from the control computer Note The device must be disconnected from power during the installation DSL and computer connectors are described in Chapter 11 Version 1 0 Page 42 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten bed T
85. sed in LANs and data transmission systems RS232 EIA standard for 25 pin simpler version 9 pin interface used to connect computers or terminals with communication equipment modem fax etc SDSL Symmetric Digital Subscriber Line Symmetrical DSL provides high speed 0 1 2048 Mbit s and more bi directional transmission over one twisted pair The transmission rates in both directions are equal SNMP Simple Network Management Protocol Network administration protocol which is widely used nowadays The network management is included in the TCP IP stack Splitter Devices representing a combination of filters and allowing transmitting analog telephone signals together with digital data Version 1 0 Page 90 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX TDM Time Division Multiplexing SDH Synchronous Digital Hierarchy VPI Virtual Path Identificator VCI Virtual Channel Identificator Version 1 0 Page 91 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen
86. sks is Class C network i e 256 addresses Using masks the entry 192 168 1 253 mask 255 255 255 252 defines the address 192 168 1 253 in the subnet of four address range from 192 168 1 252 to 192 168 1 255 4 2 2 1 Automatic assignment of IP addresses The administrator can assign IP addresses to network devices either manually or automatically If there are many devices in the network the address assignment is a long and painstaking process Dynamic Host Configuration Protocol DHCP was developed to facilitate this process The primary task of DHCP is dynamic IP address assignment However besides dynamic DHCP can support simpler means of manual and automatic statistic address assignment The administrator takes active part during the manual procedure of address assignment He presents information about correspondence of IP addresses to MAC addresses or other customer s identifiers to DHCP server During the automatic static address assignment the DHCP server assigns a free IP address from the IP address range without reference to the administrator The administrator gives the boundaries of the address range during the DHCP server configuration In this case the IP address remains the same all the time During the dynamic address assignment the DHCP server assigns an address to the customer for a limited period of time It means that later other computers can reuse the IP address Version 1 0 Page 20 of 95 BLACK BOX Network Service
87. ssive ON eo U roe Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Aan Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX Switching Switching algorithms are relatively simple and are basically the same for most routing protocols In most cases a host determines the necessity of sending a packet to another host Having received a router s address the source host sends a packet addressed specially to a router s physical MAC layer address however the packet contains network layer protocol address of the destination host After checking the packet s destination protocol address the router determines whether the destination address is in the routing table If the router did not find the address in the routing table it typically drops the packet If the router knows where to forward the packet it changes the destination physical address to that of the next hop and transmits the packet During the packet transmission through an internetwork its physical address changes however the address of the network layer protocol remains unchanged Fig 6 illustrates this process Source host Packet m To Destination host Protocol address Router 1 Physical address Packet gt To Destination host Protocol address Houter Router 2 Physical address Router 2 To Destination host Protocol address
88. system requires to enter VPI and VCI Type 8 and then press enter after it type 35 and gt gt node Please select bridge or routar b r r r Current mode is router gt gt quick Ri4d83 rl1 TFoAlil FFPoflpl ipoa PUC existed 5 Filz available Ethernet IP 192 158 1 1 198 24 67 20 subnet nask 255 255 255 0 255 255 255 0 WPICO 4095 8 MCIC1 05535 35 HAN IP _ press enter On request WANIP it is necessary to enter the interface IP address through which the connection with another router occurs In our case it is 216 71 89 12 Then the router requires to enter the gateway address to which all packets that belong to unknown networks will be sent 198 24 67 0 In this case router 2 will be this gateway Version 1 0 Page 93 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten kk Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX Enter 216 71 89 3 Note IP addresses of WAN interfaces must be in the address field of one network i gt gt node Please select bridge or routerz b r r r Current node is router quick R1483 v IPoR il PPPoR p ipoa D PYC existed 5 PCs available Ethernet IP 192 168 1 1 198 24 67 20 Subnet nask 255 255 255 0 255 255 255 0 YPI O 4095 8 YCI 1 65535 35 HAN IP
89. t form part of hierarchical groups Commands may have one or several parameters When one enters such commands it is necessary to use a space character SP to divide command names and each of the parameters To facilitate the process of the command recognition the monitor displays this or that prompt For the main menu commands of level 1 the following invitation is displayed gt for the submenu commands of level 2 the following prompt is displayed gt submenu name gt For example shdsl Prompts indicate that the device is ready to accept programs Fig 19 shows the command menu structure of the bridge mode Fig 20 shows the command menu structure of the router mode The following rules are used to describe commands e the first level commands and special commands are numbered by three figures e the second level commands are numbered by four figures e parameters in angular brackets lt gt are obligatory to enter e parameters in direct brackets are not obligatory to enter e in real commands brackets are not entered they are used for description e after the command is typed press enter e symbol vertical line between parameters requires to type one of the listed parameters Note If a password is used as access permission the time of the command input is limited and makes 10 minutes After the time lapses the password must be entered again Version 1 0 Page 44 of 95 BLACK BOX Network Se
90. t has an entry in the masquerading table of the NAT device this entry is only valid for the connection being active Version 1 0 Page 30 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX 5 DESCRIPTION OF THE DEVICE 5 1 1 Background MDS92xxx 10BT is a device of Digital Subscriber Line DSL system used for data transmission over symmetrical physical copper lines The TC PAM line encoding technology G shdsl standard which was accepted by ITU as the only world standard of high speed symmetrical data transmission over one pair is used to transmit data over a twisted pair The device consists of the following e CPU with a firmware e memory unit e signal processor e power supply unit DC DC converter e Ethernet 10BaseT network interface e management interface e line interface Fig 15 shows a structural schematic of the device Version 1 0 Page 31 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten A Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch www black hox ch Netzwerkl sungen BLACK BOX Common Bus
91. technology uses 2B1Q line code The transmission rate varies from 144 to 2320 Kbit s Regenerators are not used here 4 1 5 1 MDSL in brief Standard e ETSI TS 101 135 e interoperability between equipment of different manufacturers at the level of DSL chips Transmission rate e 144 2320 Kbit s Line code e 2B1Q Transmission medium e one pair e impossibility of the regenerator s installation Usage e Internet service providers e access to Internet e integration of LANs Version 1 0 BLACK BOX Network Services AG Ori eo U rce Z rcherstrasse 102 CH 8852 Altendorf Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 TU Melle e Mail blackbox black box ch Netzwerkl sungen Page 14 of 95 f r aktive und passive Netzwerkkomponenten www black box ch BLACK BOX Restrictions e the shortest distance of data transfer over one wire compared to other technologies 4 1 6 Multispeed DSL MSDSL technology The MSDSL technology is a further development of the MDSL technology It allows to run over longer distances because of using a more progressive line code CAP In addition it is possible to install a CAP splitter which allows using the copper pair for both data transfer and telephoning connection The technology supports the installation of a line regenerator However the spectral characteristics of the CAP code interfere with other xDSL systems running over the neighboring pairs in the same cable The
92. that provides high speed data transmission over physical wiring twisted pair used to connect telephones E1 Digital data rate of 2048 Kbit s structured according to ITU T G 704 G 703 ITU T standard regulating electrical and mechanical specifications for connections G 704 ITU T standard regulating synchronous structures for the first and second hierarchical layers G 826 ITU T standard regulating errors and norms for digital lines Hub Local network concentrator repeater that serves to connect computers and other internetworking equipment to it IEEE Institute of Electrical and Electronics Engineers Professional organization whose activities include the development of communications and network standards In particular the institute elaborated a group of standards 802 for LANs ANSI and ISO are members of IEEE IEEE 802 1d IEEE specification for bridges connecting LANs It describes an algorithm that prevents bridging loops by creating a spanning tree Internet Global internetwork connecting tens of thousands of national backbone networks and local networks worldwide Internet uses a set of IP IP Internet Protocol Internet network layer protocol It describes packet routing and device addressing the standard is used to transmit data units and IP datagrams over networks IP does not organize connections and guarantee delivery but provides packet transmission ISO International Organization for Standardiz
93. there can be only one connection at a time To multiplex the number of connections TCP port information is used by this masquerading Thus only the number of ports available limits number of simultaneous connections Version 1 0 Page 29 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 f r weltweite e Mail blackbox black box ch www black box ch Netzwerkl sungen BLACK BOX Let us illustrate PAT functioning There is an internal network 191 167 0 and a router with a MAC address 193 200 150 5 A host from the internal network with an address 191 167 0 10 and TCP source port 1243 addresses web server 205 131 1 1 While passing through the NAT interface the outcoming packet will have the following changes in the IP header the source address is changed and the source port in the TCP header is changed from 1243 into for example 62300 The following change is then recorded in the Nat table Internal IP Port local NAT port 191 167 0 10 1243 61300 Thus when the web server s reply is received the Nat table will be updated and the packet addressed to port 61300 will be corrected the internal address will be then in the IP header and in the TCP header port 1243 now acting as a destination port Incoming connections are impossible with masquerading since even when a hos
94. times 3 DNS relay status DNS server address discovery incomplete gt dnsrelay gt Command format show Parameter None Version 1 0 Page 63 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 e Mail blackbox black box ch www black box ch f r weltweite Netzwerkl sungen BLACK BOX 8 3 3 Ipoa command The ipoa command puts the system into the menu of connection settings of IP over ATM gt gt ipoa gt ipoa gt Command format ipoa delwanip setqos setrip show Parameter Delwanip See 8 3 3 1 Setqos See 8 3 3 2 Setrip See 8 3 3 3 Show See 8 3 3 3 8 3 3 1 Delwanip command The delwanip command serves to delete all or selected PVC gt ipoa gt delwanip all Command format delwanip lt all gt lt vpi gt lt vci gt Parameter All Deletes all PVCs VPI VCI Deletes the selected PVC with the VPI VCI number 8 3 3 2 Setqos command The setqos command sets the priority for the active PVC gt r1483 gt setqos 8 35 ubr gt r1483 gt Command format setqos lt vpi gt lt vci gt lt ubr cbr vbr nrt gt Parameter VPI VCI Sets PVC with the VPI VCI number UBR Sets the UBR priority CBR Sets the CBR priority VBR Sets the VBR priority VBRNR
95. ve On eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX Command format show Parameter none Definitions Ethernet ip IP address of the device Subnet mask Subnet mask 8 2 5 List command The list command displays the VC condition gt gt list Port ethernetl 0 edd TxPkts 0 0 RxPkts 0 0 Port shdsl 0 oamloop TxPkts 0 0 RxPkts 0 0 TxVPI VCI 0 0 R xVPI VCI 0 0 1 oamloop TxPkts 0 0 RxPkts 0 0 TxVPI VCI 0 0 R xVPI VCI 0 0 2 oamloop TxPkts 0 0 RxPkts 0 0 TXVPI VCI 0 0 R xVPI VCI 0 3 3 oamloop TxPkts 0 0 RxPkts 0 0 TxVPI VCI 0 0 R xVPI VCI 0 4 4 bridge TxPkts 0 0 RxPkts 0 0 TxVPI VCI 8 35 R xVPI VCI 8 35 gt gt Command format list Definitions Ethernet port 0 Status of port M 1 TxPkts Transmitted packets counter RxPkts Received packets counter right error SHDSL port 4 Status of port NM 1 TxPkts Transmitted packets counter RxPkts Received packets counter right error TxVPI VC Number of transmitted VC RxVPI VC Number of receiving VC Version 1 0 Page 49 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten 5 Tel 41 0 55 451 70 70 Fax 41
96. ve the configuration y n y Configuration will have no effect until after save and restart gt gt Comand format quick Parameter none Definitions 0 PVC existed 8 PVCs Information line shows the number of available existing or available PVC VPI 0 4095 Enter the VPI decimal number VCI 1 65535 Enter the VCI decimal number Packet Filter Defines the type of packet filtration Any Ip Pppoe All a Ip i or PPP p Add another PVC y n Continue or end the quick program Enable Spanning tree y n To enable disable the spanning tree algorithm Preserve the configuration y n To save disable the configuration Note The changes will be activated after the configuration is saved 8 2 10 R1483 command The r1483 command puts the system into the submenu of RFC1483 encapsulation settings gt gt r1483 gt r1483 gt Version 1 0 Page 54 of 95 BLACK BOX Network Services AG f r aktive und passive ON eo U rce Z rcherstrasse 102 CH 8852 Altendorf Netzwerkkomponenten Panty Tel 41 0 55 451 70 70 Fax 41 0 55 451 70 75 E MRNA e Mail blackbox black box ch www black box ch BLACK BOX Parameter Delpvc See 8 2 10 1 Pfilter See 8 2 10 2 Setpvc See 8 2 10 3 Setqos See 8 2 10 4 Setspan See 8 2 10 5 Show See 8 2 10 6 8 2 10 1 Delpvc command The delpvc allows to delete one or all PVCs

Black Box Version 1.0 User's Manual

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