ZyXEL VDSL2 User's Manual
Contents
1. FCC Warning This device has been tested and found to comply with the limits for a Class A digital switch pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a commercial environment This device generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this device in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense CE Mark Warning This is a class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Taiwanese BSMI Bureau of Standards Metrology and Inspection A Warning EE RAS B r RIENE nm EE EB Ee EEA HIBE SEXSITE PIE TESTER P FRE SPEREGEN Notices Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This Class A digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe est conforme la norme NMB 003 du Canada Viewing Certifications 1 Goto http www zyxel com 2 Select your product on the ZyXEL home page to go to that product s page 3 Select the certification you wish to view from this p2. e Web http www zyxel com sg e Regular Mail ZyXEL Singapore Pte Ltd No 2 International Business Park The Strategy 703 28 Singapore 609930 Spain e Support E mail support zyxel es e Sales E mail sales zyxel es e Telephone 34 902 195 420 e Fax 34 913 005 345 e Web www zyxel es e Regular Mail ZyXEL Communications Arte 21 5 planta 28033 Madrid Spain Sweden e Support E mail support zyxel se e Sales E mail sales zyxel se e Telephone 46 3 1 744 7700 Fax 46 31 744 7701 e Web www zyxel se e Regular Mail ZyXEL Communications A S Sj porten 4 41764 G teborg Sweden Taiwan e Support E mail support zyxel com tw e Sales E mail sales zyxel com tw e Telephone 886 2 27399889 e Fax 886 2 27353220 e Web http www zyxel com tw e Address Room B 21F No 333 Sec 2 Dunhua S Rd Da an District Taipei Thailand e Support E mail support zyxel co th e Sales E mail sales zyxel co th e Telephone 662 831 5315 e Fax 662 831 5395 e Web http www zyxel co th e Regular Mail ZyXEL Thailand Co Ltd 1 1 Moo 2 Ratchaphruk Road Bangrak Noi Muang Nonthaburi 11000 Thailand VLC1324G User s Guide Appendix B Customer Support Turkey e Support E mail cso zyxel com tr e Telephone 90 212 222 55 22 e Fax 90 212 220 2526 Web http www zyxel com tr Address Kaptanpasa Mahallesi Piyalepasa Bulvari Ortadogu Plaza N 14 13 K 6 Okmeydani Sisli Istanbul Turkey Ukraine e
3. 49 EP OU OO OD 45 45 CL 74 Port 19 Port 20 Port 21 Port 22 Port 23 Port 24 9 v DE 4 19 W W 43 ZI EB CIJ 49 EP 23 09 Uy 49 39 u GUY Ch 42 CY 2 Le VLC1324G User s Guide 27 Chapter 2 VLC Specifications Figure 7 ES 6000 Cable Telco 50 Pin Assignments Splitter End Port 1 Port 2 Port 3 Port 4 Port 5 Port 6 Port 7 Port 8 Port 9 Port 10 Port 11 Port 12 Port 13 Port 14 Port 15 Port 16 Port 17 Port 18 Port 1 Port 2 Port 3 Port 4 Port 5 Port 6 Port 7 Port 8 Port 9 Port 10 Port 11 Port 12 Port 13 Port 14 Port 15 Port 16 Port 17 Port 18 Port 19 Port 20 Port 21 Port 22 Port 23 Port 24 39 YA Uf4 49 BI 24 EPI EI CD U9 W 49 Ev C29 EV END 45 EL Port 19 Port 20 Port 21 Port 22 Port 23 Port 24 PG cr XQ 13 W 43 ZY 23 CIJ ELD 43 G9 23 07 LW 49 39 49 CU CJ 42 ti 2 EE 2 4 Wire Gauge Specifications AWG American Wire Gauge is a measurement system for wire that specifies its thickness As the thickness of the wire increases the AWG number decreases Table 6 Wire Gauge Specifications WIRE TYPE REQUIRED AWG NO DIAMETER Telephone Wire 26 or larger 2 5 Console Cable Pin Assignments The following diagram and chart show the pin assignments of the console cable VLC1324G User s Guide Chapter 2 VLC Specifications Figure 8 Console Cable Mini RJ 11 Male Connector u 0660 Table 7 Console Cable Connector Pin Assig
4. Guide 49 Index MAG Media Access Control Filter 18 MAC count limit 18 MIBs 24 monitoring system 17 multicast bandwidth control 19 multicast group limit 19 multicast static 19 multicast VLAN 19 MVLAN 19 N network management 24 P packet filter 18 pin assignments 25 port description 21 port isolation 18 Power Spectral Density See PSD product registration 41 product specifications 23 profile VDSL 20 profiles 16 Alarm 16 VDSL2 16 protocol filter 18 PSD 17 PWR LED 31 R rate adaption 17 recovering firmware 34 registration product 41 related documentation 3 S safety warnings 5 Signal to Noise Ratio See SNR SNR 17 standards VDSL2 15 static multicast 19 supported features 24 syntax conventions 4 SYS LED 31 system error logging 17 system monitoring 17 T Telco 50 connector 21 Telco 50 pin assignments 25 telephone wire 28 terminal emulation 34 trademarks 39 Transparent LAN Service TLS 20 troubleshooting 31 U USER Telco 50 connectors 28 V VDSL profile 20 VDSL2 profile 16 VDSL2 standards 15 VLAN 32 VLAN stacking 20 VLAN multicast 19 VT100 34 W warranty 40 note 41 weight 23 50 VLC1324G User s Guide Index wire gauge 28 X XMODEM upload 33 34 VLC1324G User s Guide 5 Index 52 VLC1324G User s Guide
5. Support E mail support ua zyxel com e Sales E mail sales ua zyxel com e Telephone 380 44 247 69 78 e Fax 380 44 494 49 32 Web www ua zyxel com Regular Mail ZyXEL Ukraine 13 Pimonenko Str Kiev 04050 Ukraine United Kingdom e Support E mail support zyxel co uk e Sales E mail sales zyxel co uk Telephone 44 1344 303044 0845 122 0301 UK only e Fax 44 1344 303034 Web www zyxel co uk Regular Mail ZyXEL Communications UK Ltd 11 The Courtyard Eastern Road Bracknell Berkshire RG12 2XB United Kingdom UK 48 VLC1324G User s Guide A alarm LED 18 Alarm profile 16 ALM LED 18 31 AWG American Wire Gauge 28 B bandwidth control 19 C certifications 24 39 notices 40 viewing 40 CFM Connectivity Fault 18 console cable pin assignments 28 console port 21 34 contact information 43 copyright 39 customer support 43 D DHCP 20 DHCP Dynamic Host Configuration Protocol 20 DHCP Relay Option 82 20 DHCP snooping 20 dimensions 23 disclaimer 39 Discrete Multi Tone 17 DMT 17 Index E error logging 17 F FCC interference statement 39 features 15 other supported 24 filter protocols 18 filter packet 18 front panel 20 H hardware 20 IEEE 802 1Q Tagged VLAN 18 IEEE 802 1x Port based Authentication 18 Impulse Noise Protection 17 INP 17 isolation 18 L LED ALM 18 description 21 LED problems 31 lockout 33 logging errors 17 VLC1324G User s
6. Telco 50 connector for connecting to the VLC Supported Band Plans ITU T G 993 2 Annex A ITU T G 993 2 Annex B bandplans 997 and 998 Chapter 2 VLC Specifications Table 4 VLC Specifications Certifications RoHS amp WEEE compliant NEBS compliant ETSI 300 019 K 20 Safety EN60950 1 EN41003 1 ETSI300 386 CSA60950 1 UL60950 1 IEC60950 1 EMC FCC Part 15 Class A EN55022 Class A EN55024 Class A ETSI 300 386 Network Management Local debug function through a RS 232 port Web based configurator through MSC SNMP v1 v2c and v3 based support through MSC Remote debug through MSC Telnet Status display and event report Multi level login through MSC RFC1213 SNMP MIB II RFC1493 Bridge MIB RFC1643 Ethernet MIB RFC2674 Q MIB VDSL2 Line MIB RFC3728 RFC1757 RMON MIB group 1 2 3 9 ZyXEL proprietary MIB MIB for VDSL2 uplink downlink SNR MIB for VDSL2 interface Tx Rx power MIB for IGMP statistics per subscriber interface and per multicast VLAN basis which at least include counters of IGMP join IGMP leave and active multicast group s MIB for counters of active users on a per multicast group basis MIB for VDSL2 line includes far end and near end Error Second ES Severely Error Second SES and Unavailable Second UAS at VTU O and near end ES SES and UAS at VTU R MIB for VDSL2 port includes the far end and near end Code Violation incorrect Cyclic Redundancy Check CRC at VTU O and near
7. The VLC is a DMT based VDSL2 solution which dynamically adapts the bit transfer rate to conditions on the local loop This allows the line card to sustain high performance even over noisy lines Transmit PSD Notches The VLC supports the transmission of PSD Power Spectral Density notches at RFI Radio Frequency Interference bands This reduces the effects of strong radio sources nearby Upstream Power Backoff Upstream Power Backoff UPBO methods can be applied to VDSL2 networks in order to solve FEXT Far End Cross X Talk noise effects in distributed environments Downstream Power Back Off The VLC1324G 51 supports the downstream power back off DPBO m ITU T G 997 1 to reduce far end crosstalk Band Plan Support The VLC supports the band plans defined in ITU T G 993 2 Alarm Profiles The system allows you to customize the priority levels of individual alarms and the alarm severity threshold for recording alarms on an individual port s The VLC also includes a DSL error ES SES UAS monitoring and alarm reporting mechanism VDSL2 Profiles Profiles allow you to configure VDSL2 ports efficiently You can configure all of the VDSL2 ports with the same profile thus removing the need to configure the VDSL2 ports one by one You can also change an individual VDSL2 port by assigning it a different profile The VLC supports the following VDSL2 profiles 8a 8b 8c 8d 12a e 12b 17a e The DSI frequency band of the 17a pr
8. s Guide 45 Appendix B Customer Support Malaysia Support E mail support zyxel com my Sales E mail sales zyxel com my Telephone 603 8076 9933 Fax 603 8076 9833 Web http www zyxel com my Regular Mail ZyXEL Malaysia Sdn Bhd 1 02 amp 1 03 Jalan Kenari 17F Bandar Puchong Jaya 47100 Puchong Selangor Darul Ehsan Malaysia North America Support E mail support zyxel com Support Telephone 1 800 978 7222 Sales E mail sales zyxel com Sales Telephone 1 714 632 0882 Fax 1 714 632 0858 Web www zyxel com Regular Mail ZyXEL Communications Inc 1130 N Miller St Anaheim CA 92806 2001 U S A Norway Support E mail support zyxel no Sales E mail sales zyxel no Telephone 47 22 80 61 80 Fax 47 22 80 61 81 Web www zyxel no Regular Mail ZyXEL Communications A S Nils Hansens vei 13 0667 Oslo Norway Poland E mail info pl zyxel com Telephone 48 22 333 8250 Fax 48 22 333 8251 Web www pl zyxel com Regular Mail ZyXEL Communications ul Okrzei 1A 03 715 Warszawa Poland Russia Support http zyxel ru support Sales E mail sales zyxel ru Telephone 7 095 542 89 29 Fax 7 095 542 89 25 Web www zyxel ru Regular Mail ZyXEL Russia Ostrovityanova 37a Str Moscow 117279 Russia 46 VLC1324G User s Guide Appendix B Customer Support Singapore e Support E mail support zyxel com sg e Sales E mail sales zyxel com sg e Telephone 65 6899 6678 e Fax 65 6899 8887
9. 2 The ALN LED EO ENE 31 VLC1324G User s Guide Table of Contents VPN PPS AN 32 Eeg EE EE ENN EE ER 32 TN A EA CN AAE A AATA 32 3 6 The Line Card is Not Manageable ted kak a dead 33 3 6 1 Uploading the Default Configuration File via Boot Commands 33 3 6 2 Uploading the Firmware via Boot Commands rnrernnnonnnnennnnennnnennnnvnnnnnnnnnnnnnnnennnnenn 34 Part Il Appendices and Index eeeeeeeeeeeeees 37 ADDONODE A Legal NNN ba ki ra pa D d kk b bak kb Aa ski GAGA 39 Appendix B Customer SUB GONE ki soi ou wi koki atab ok ad a a kt ak kk EG EG ka ke kk A A A ANN Di D 43 NO dem cR T a bl ka ok 49 8 VLC1324G User s Guide List of Figures List of Figures BE EE EE ERE TERE AAAA AGH 21 FOTO Z FOM Fanell Or ND NNN E E SE 21 Figure 3 VLC Ports 1 24 Telco 50 Connector Pin Assignments rrrnrnnnannnnnnnnnrnnnnennnennnennnnennnennnennernnnne 25 Figure 4 IES 5000 5005 Cable Telco 50 Pin Assignments VLC End rrrnnnnrnnnrnnnnrrvnnnrrnnnnnrnnnnrnnnnnnnn 26 Figure 5 IES 5000 5005 Cable Telco 50 Pin Assignments Splitter Card End 27 Figure 6 IES 6000 Cable Telco 50 Pin Assignments VLC End cccccseecceeseeeceeeeeceeeeeceeesesseeeeeees 27 Figure 7 IES 6000 Cable Telco 50 Pin Assignments Splitter End rrrrrnnnnnnannnnnnnnnnnnnnrvnnrvanevnnennnnen
10. 4G User s Guide 33 Chapter 3 VLC Troubleshooting 4 After a successful configuration file upload type atgo to restart the line card Bootbase Version V1 00 03 23 2005 16 10 06 FLASH AMD 32M Hardware Version Serial Number RAM Size 133120 Kbytes AVNOS Versions V3490 AY i 55 1 01 2008 20 50 26 Press any key to enter debug mode within 3 seconds Enter Debug Mode atlc Starting XMODEM upload CRC mode CCEC Total 393216 bytes received EFASE TO ss 3 6 2 Uploading the Firmware via Boot Commands Usually you should use FTP or HTTP with the MSC to upload the line card s firmware If you cannot manage the line card from the MSC use the following procedure to upload firmware to the line card 1 Obtain the firmware file unzip it and save it in a folder on your computer 2 Connect your computer to the console port and use terminal emulation software configured to the following parameters e VT100 terminal emulation e 9600 bps e No parity 8 data bits 1 stop bit e No flow control 3 Pull out the line card and push it back in to restart it and begin a session 4 When you see the Press any key to enter Debug Mode within 3 seconds message press a key to enter debug mode 5 Type atba5 after the Enter Debug Mode message this changes the console port speed to 115200 bps 6 Change the configuration of your terminal emulation software to use 115200 bps and reconnect to the line card 7 Type atur aft
11. IEEE 802 lag Connectivity Fault Management CFM specification allows network administrators to identify and manage connection faults Through discovery and verification of the path CFM can detect analyze and isolate connectivity faults in bridged LANS This is especially helpful when the route between a CO VDSL switch and one of its CPE goes through switches owned by independent organizations IEEE 802 1Q Tagged VLAN Your VLC uses the IEEE 802 1Q Tagged VLAN Virtual Local Area Network which allows it to deliver tagged untagged frames to and from its ports Port Isolation The VLC s port isolation feature allows each port to communicate with the uplink port but not communicate with each other Isolation per VLAN Use isolation to block the VDSL2 subscribers in a specific VLAN from sending traffic directly to each other IEEE 802 1x Port based Authentication The VLC supports the IEEE 802 1x standard for centralized user authentication and accounting management through an optional network authentication RADIUS server Packet Filter The VLC supports packet filtering based on protocol You can configure the VLC to accept all packets accept PPPoE packets only or block any combination of the following protocols IP ARP DHCP EAPOL PPPoE NetBios or IGMP MAC Media Access Control Filter Use the MAC filter to deny or accept incoming frames based on MAC Media Access Control address es or OUI Organizational Unit Identifier that you
12. Port 7 Ring Port 8 Ring Port 9 Ring Port 10 Ring Port 11 Ring Port 12 Ring Port 13 non On 0o ri ri ri ri ri N i i il i il i O O O O O Dp p p qu dx oo o o O SS E A cC CEEE Ring Port Ring Port 21 Ring Port 22 Ring Port 23 Ring Port 24 Tip Port 1 Tip Port 2 Tip Port 3 Tip Port 4 Tip Port 5 Tip Port 6 Tip Port 7 Tip Port 8 Tip Port 9 Tip Port 10 Tip Port 11 Tip Port 12 Tip Port 13 Tip Port 14 Tip Port 15 Tip Port 16 Tip Port 17 Tip Port 18 Tip Port 19 Tip Port 20 Tip Port 21 Tip Port 22 Tip Port 23 Tip Port 24 Table 5 VLC Telco 50 Connector Pin Assignments PORTS 1 24 Pin 1 Pin 26 NULL Pin 2 Tip Port 24 Pin 3 Tip Port 23 Pin 5 Tip Port 21 Pin 6 Tip Port 20 Pin 7 Tip Port 19 VLC1324G User s Guide 25 Pin4 Ring Port 22 Pin 29 Tip Port 22 Chapter 2 VLC Specifications Table 5 VLC Telco 50 Connector Pin Assignments continued PORTS 1 24 The following graphics show pin assignments for the Telco 50 connectors on the cables that connect the VLC to a splitter card in the splitter chassis Figure 4 ES 5000 5005 Cable Telco 50 Pin Assignments VLC End ip Port 10 ip Port 11 ip Port 12 ip Port 13 ip Port 14 ip Port 15 ip Port 16 p Port 17 ip Port 18 T T T T Ti T T T T p Port 19 p Port 20 ip Port 21 ip Port 22 p Port 23 ip Port 24 Ring Port 1 Ring Port 2 Ring Port 3 Ring Port 4 Ring Port 5 Ring Port 6 Ring Port 7 Ri
13. VLC 1324G VDSL2 Line Card User s Guide Version 3 90 5 2008 Edition 1 ZyXEL www zyxel com About This User s Guide About This User s Guide Intended Audience This manual is intended for users of the VLC1324G VDSL2 Line Card and the VSC1224 41 Splitter Card It describes detailed information about the cards features and hardware Related Documentation e TES 5000 and IES 6000 User s Guides Refer to the IES 5000 or the IES 6000 User s Guide for directions on installation connections maintenance hardware trouble shooting and safety warnings e MSC1000G and MSC1024G Management Switch Card User s Guides These user s guides cover the configuration of your IES 5000 or IES 6000 Refer to these user s guides for information on your VLC s default settings ZyXEL Web Site Please refer to www zyxel com for additional support documentation and product certifications User Guide Feedback Help us help you Send all User Guide related comments questions or suggestions for improvement to the following address or use e mail instead Thank you The Technical Writing Team ZyXEL Communications Corp 6 Innovation Road II Science Based Industrial Park Hsinchu 300 Taiwan E mail techwriters zyxel com tw VLC1324G User s Guide 3 Document Conventions Document Conventions Warnings and Notes These are how warnings and notes are shown in this User s Guide lt gt Warnings tell you about thi
14. age ZyXEL Limited Warranty ZyXEL warrants to the original end user purchaser that this product is free from any defects in materials or workmanship for a period of up to two years from the date of purchase During the warranty period and upon proof of purchase should the product have indications of failure due to faulty workmanship and or materials ZyXEL will at its discretion repair or replace the defective products or components without charge for either parts or labor and to whatever extent it shall deem necessary to restore the product or components to proper operating condition Any replacement will consist of a new or re manufactured functionally equivalent product of equal or higher value and will be solely at the discretion of ZyXEL This warranty shall not apply if the product has been modified misused tampered with damaged by an act of God or subjected to abnormal working conditions Ki VLC1324G User s Guide Appendix A Legal Information Note Repair or replacement as provided under this warranty is the exclusive remedy of the purchaser This warranty is in lieu of all other warranties express or implied including any implied warranty of merchantability or fitness for a particular use or purpose ZyXEL shall in no event be held liable for indirect or consequential damages of any kind to the purchaser To obtain the services of this warranty contact your vendor You may also refer to the warranty policy for the regio
15. as specified in ITU T G 993 2 to help reduce the noise in VDSL transmissions Impulse Noise Protection INP Short impulses from external sources may cause bursts of errors which could impact multimedia ex voice video or picture quality The VLC s VDSL2 supports Impulse Noise Protection INP as defined ITU T G 993 2 The VLC s impulse noise protection provides the ability to correct errors regardless of the number of errors in an errored DMT Discrete Multi Tone symbol You can configure the minimum impulse noise protection to provide up to 16 DMT symbols protection Loop Diagnostic The VLC supports the loop diagnostic function specified in ITU T G 993 2 The test parameters include quiet line noise signal to noise ratio loop attenuation signal attenuation signal to noise ratio margin attainable net data rate and far end actual aggregate transmit power After completing the loop diagnostic function the VLC displays the test results and automatically returns to the normal state to be ready for initialization System Monitoring e System status link status rates statistics counters Configurable temperature and voltage monitoring thresholds and alarm reports VLC1324G User s Guide Chapter 1 VLC Overview Alarm LED An ALM alarm LED lights when the VLC is overheated or the voltage readings are outside the tolerance levels and turns off when the temperature or voltage has returned to a normal level CFM The
16. ation 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 ZyXEL Communications Corporation Published by ZyXEL Communications Corporation All rights reserved Disclaimers ZyXEL does not assume any liability arising out of the application or use of any products or software described herein Neither does it convey any license under its patent rights nor the patent rights of others ZyXEL further reserves the right to make changes in any products described herein without notice This publication is subject to change without notice Trademarks ZyNOS ZyXEL Network Operating System is a registered trademark of ZyXEL Communications Inc Other trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners Certifications Federal Communications Commission FCC Interference Statement This device complies with Part 15 of FCC rules Operation is subject to the following two conditions e This device may not cause harmful interference e This device must accept any interference received including interference that may cause undesired operations VLC1324G User s Guide Appendix A Legal Information
17. e scientific value For example k for kilo may denote 1000 or 1024 M for mega may denote 1000000 or 1048576 and so on VLC1324G User s Guide Safety Warnings Safety Warnings lt gt For your safety be sure to read and follow all warning notices and instructions Do NOT use this product near water for example in a wet basement or near a swimming pool Do NOT expose your device to dampness dust or corrosive liquids Do NOT store things on the device Do NOT install use or service this device during a thunderstorm There is a remote risk of electric shock from lightning Connect ONLY suitable accessories to the device Do NOT open the device or unit Opening or removing covers can expose you to dangerous high voltage points or other risks ONLY qualified service personnel should service or disassemble this device Please contact your vendor for further information e Make sure to connect the cables to the correct ports Place connecting cables carefully so that no one will step on them or stumble over them e Always disconnect all cables from this device before servicing or disassembling Do not use the device outside and make sure all the connections are indoors There is a remote risk of electric shock from lightning Do NOT obstruct the device ventilation slots as insufficient airflow may harm your device e Warning To avoid risk of electric shock remove only
18. e sure the computer behind the DSL device has the correct gateway IP address configured Check the VLAN configuration 4 Check the cable and connections between the line card and the local server 5 Try to access another local server If data can be transmitted to a different local server the local server that could not be accessed may have a problem 3 5 Data Rate The SYNC rate 1s not the same as the configured rate Table 13 SYNC rate Troubleshooting STEPS CORRECTIVE ACTION Connect the VDSL2 modem or router directly to the VDSL2 port using a different telephone wire VDSL2 port may be limiting the speed to a certain rate lf they do not match when a good wire is used contact the distributor If the rates match the quality of the telephone wiring that connects the subscriber to the VLC1324G User s Guide Chapter 3 VLC Troubleshooting 3 6 The Line Card is Not Manageable The line card always uses the default configuration Any changes you did to the line card are stored on the MSC By default the MSC is allowed to manage every line card Use the 1cman show command on the MSC to see a line card s connection status If you still cannot manage the line card from the MSC the line card s configuration file may be damaged or the firmware may be old you may need to restore the default configuration file or upload new firmware using the line card s console port lt gt The MSC resets the line card after a per
19. egular Mail ZyXEL France 1 rue des Vergers Bat 1 C 69760 Limonest France 44 VLC1324G User s Guide Appendix B Customer Support Germany e Support E mail support zyxel de e Sales E mail sales zyxel de Telephone 49 2405 6909 69 e Fax 49 2405 6909 99 Web www zyxel de Regular Mail ZyXEL Deutschland GmbH Adenauerstr 20 A2 D 52146 Wuerselen Germany Hungary e Support E mail support zyxel hu e Sales E mail info zyxel hu e Telephone 36 1 3361649 e Fax 36 1 3259100 Web www zyxel hu Regular Mail ZyXEL Hungary 48 Zoldlomb Str H 1025 Budapest Hungary India e Support E mail support zyxel in e Sales E mail sales zyxel in e Telephone 91 11 30888144 to 91 11 30888153 e Fax 91 11 30888149 91 11 26810715 Web http www zyxel in Regular Mail India ZyXEL Technology India Pvt Ltd II Floor F2 9 Okhla Phase 1 New Delhi 110020 India Japan e Support E mail support zyxel co jp Sales E mail zyp zyxel co jp Telephone 81 3 6847 3700 Fax 81 3 6847 3705 Web www zyxel co jp Regular Mail ZyXEL Japan 3F Office T amp U 1 10 10 Higashi Gotanda Shinagawa ku Tokyo 141 0022 Japan Kazakhstan e Support http zyxel kz support e Sales E mail sales zyxel kz e Telephone 7 3272 590 698 e Fax 7 3272 590 689 Web www zyxel kz Regular Mail ZyXEL Kazakhstan 43 Dostyk Ave Office 414 Dostyk Business Centre 050010 Almaty Republic of Kazakhstan VLC1324G User
20. end Code Violation at VTU R Other Features Anti IP Address Spoofing Anti MAC Address Spoofing MAC Filtering MAC Count Limiting Hardware based Multicasting Multicast Group Limit IGMP Message Rate Limiting IEEE 802 1Q VLAN Tagging IEEE 802 1p CoS with Priority Queuing IGMP v1 amp v 2 Snooping DHCP Snooping IEEE 802 1x Port based Authentication ACL profile IEEE 802 1p Priority Mapping Sets Transmit PSD 24 VLC1324G User s Guide Chapter 2 VLC Specifications 2 2 VLG Firmware Naming Conventions A firmware version includes the model code and release number as shown in the following example Firmware Version V3 90 AYL 0 V3 90 BBW 0 AYL or BBW is the model code e AYL denotes the VLC1324G 51 for VDSL over POTS Annex A e BBW denotes the VLC1324G 53 for VDSL over ISDN Annex B 0 is the firmware s release number This varies as new firmware is released Your firmware s release number may not match what is displayed in this User s Guide 2 3 Telco 50 Connector Pin Assignments The following figures and table describe the pin assignments for the VLC s Telco 50 connector The splitter card s Telco 50 connector and the USER and CO hardware Telco 50 connectors on the rear panel of the splitter chassis also use the same pin assignments Figure 3 VLC Ports 1 24 Telco 50 Connector Pin Assignments 14 Ring Port 1 Ring Port 2 Ring Port 3 Ring Port 4 Ring Port 5 Ring Port 6 Ring
21. er the Enter Debug Mode message 8 Wait for the Starting XMODEM upload message before activating XMODEM upload on your terminal 9 This is an example Xmodem configuration upload using HyperTerminal Click Transfer then Send File to display the following screen VLC1324G User s Guide Chapter 3 VLC Troubleshooting Figure 10 Example Xmodem Upload 2 xl Type the firmware file s location or click Browse to Folder C Product ge search for it Filename CA ProductFirmnmware bin Browse Protocol Choose the 1K Xmodem 1K modem protocol Send nze C z AE Then click Send 10 After a successful firmware upload the line card restarts The console port speed automatically changes back to 9600 bps when the line card restarts Bootbase Version V1 00 03 23 2005 16 10 06 FLASH AMD 32M Hardware Version Serial Number RAM Size 133120 Kbytes ZyNOS Version V3 90 AYL 0 b5 1 01 2008 20 50 26 Press any key to enter debug mode within 3 seconds Enter Debug Mode atba5 Now console speed will be changed to 115200 bps OK atur Starting XMODEM upload CRC mode er Total 2003968 bytes received System Reboot Console speed will be changed to 9600 bps VLC1324G User s Guide Chapter 3 VLC Troubleshooting VLC1324G User s Guide PART II Appendices and Index Pa A R w Q O yx Index 49 Legal Information Copyright Copyright O 2008 by ZyXEL Communications Corpor
22. from flooding the multicast server Static Multicast Use static multicast to allow incoming frames based on multicast MAC address es that you specify This feature can be used in conjunction with IGMP snooping to allow multicast MAC address es that are not learned by IGMP snooping You can use static multicast to pass routing protocols such as RIP and OSPF Multicast VLAN Multicast VLAN is designed for applications such as Media on Demand MoD using multicast traffic across an Ethernet ring based service provider network Multicast VLAN allows one single multicast VLAN to be shared among different subscriber VLANs on the network This improves bandwidth utilization by reducing multicast traffic in the subscriber VLANs and simplifies multicast group management Multicast Bandwidth Control The VLC supports static bandwidth control for multicast traffic Bandwidth limits can be assigned to multicast channels During IGMP snooping the system checks the total bandwidth usage to see if it exceeds the specified limit If the specified limits are reached the system restricts the joining of multicast groups on a per port basis VLC1324G User s Guide 19 Chapter 1 VLC Overview DHCP Relay DHCP Dynamic Host Configuration Protocol RFC 2131 and RFC 2132 allows individual computers to obtain TCP IP configuration at start up from a server You can configure the system as a DHCP relay agent to have another DHCP server provide TCP IP configura
23. in a well ventilated area and that normal operation of the fans is not inhibited Keep the bottom top and all sides clear of obstructions and away from the exhaust of other equipment If the voltage levels are outside the allowed range take a screen shot of the sys monitor show command display and contact your vendor VLC1324G User s Guide Chapter 3 VLC Troubleshooting 3 3 VDSL2 Data Transmission The VDSL2 link is up but data cannot be transmitted Table 11 VDSL2 Data Transmission Troubleshooting STEPS CORRECTIVE ACTION Check the line card s port isolation settings lf the subscriber is having problems with video or other high bandwidth services make sure the line card s VDSL2 port s data rates are set high enough Check the VLAN configuration 3 Ping the MSC from the computer behind the VDSL2 modem or router If you cannot ping connect a VDSL2 modem to a VDSL2 port that is known to work lf tte VDSL2 modem or router works with a different VDSL2 port there may be a problem with the original port Contact the distributor lf using a different port does not work try a different VDSL2 modem or router with the original port 3 4 Local Server The computer behind a VDSL2 modem or router cannot access a local server connected to the line card Table 12 Local Server Troubleshooting STEPS CORRECTIVE ACTION 1 Refer to Section 3 3 on page 32 to make sure that the subscriber is able to transmit to the line card 2 Mak
24. iod of inactivity on the line card This may damage the line card if you are uploading the default configuration file or new firmware to the line card Use the 1cman disable lt slot gt Command on the MSC to prevent the MSC from managing the line card D After you upload the file successfully use the 1cman enable siot command on the MSC to allow the MSC to manage the line card again 3 6 1 Uploading the Default Configuration File via Boot Commands Obtain the default configuration file unzip it and save it in a folder Use a console cable to connect a computer with terminal emulation software to the line card s console port Pull out the line card and push it back in you will see the initial screen When you see the message Press any key to enter Debug Mode within 3 seconds press any key to enter debug mode To upload the configuration file do the following 1 Type atlc afterthe Enter Debug Mode message 2 Wait for the Starting XMODEM upload message before activating XMODEM upload on your terminal 3 This is an example Xmodem configuration upload using HyperTerminal Click Transfer then Send File to display the following screen Figure 9 Example Xmodem Upload iSendFile Un 2 xl Type the configuration file s Fader e location or click Browse to search for it Filename C Productcontig ram Browse Protocol Choose the 1K Xmodem imodem protocol Send Close nee Then click Send VLC132
25. izon Building No 6 Zhichun Str Haidian District Beijing e Web http www zyxel cn China ZyXEL Communications Shanghai Corp e Support E mail cso zycn zyxel cn e Sales E mail sales zyxel cn Telephone 86 021 61199055 e Fax 86 021 52069033 VLC1324G User s Guide Appendix B Customer Support e Address 1005F ShengGao International Tower No 137 XianXia Rd Shanghai Web http www zyxel cn Costa Rica Support E mail soporte zyxel co cr Sales E mail sales zyxel co cr Telephone 506 2017878 Fax 506 2015098 Web www zyxel co cr Regular Mail ZyXEL Costa Rica Plaza Roble Escaz Etapa El Patio Tercer Piso San Jos Costa Rica Czech Republic E mail info cz zyxel com Telephone 420 241 091 350 Fax 420 241 091 359 Web www zyxel cz Regular Mail ZyXEL Communications Czech s r o Modransk 621 143 01 Praha 4 Modrany Cesk Republika Denmark Support E mail support zyxel dk Sales E mail sales zyxel dk Telephone 45 39 55 07 00 Fax 45 39 55 07 07 Web www zyxel dk Regular Mail ZyXEL Communications A S Columbusvej 2860 Soeborg Denmark Finland Support E mail support zyxel fi Sales E mail sales zyxel fi Telephone 358 9 4780 8411 Fax 358 9 4780 8448 Web www zyxel fi Regular Mail ZyXEL Communications Oy Malminkaari 10 00700 Helsinki Finland France E mail info zyxel fr Telephone 33 4 72 52 97 97 Fax 33 4 72 52 19 20 Web www zyxel fr R
26. n in which you bought the device at http www zyxel com web support warranty info php Registration Register your product online to receive e mail notices of firmware upgrades and information at www zyxel com VLC1324G User s Guide jan Appendix A Legal Information 42 VLC1324G User s Guide Customer Support In the event of problems that cannot be solved by using this manual you should contact your vendor If you cannot contact your vendor then contact a ZyXEL office for the region in which you bought the device Regional offices are listed below see also http www zyxel com web contact us php Please have the following information ready when you contact an office Required Information Product model and serial number e Warranty Information Date that you received your device Brief description of the problem and the steps you took to solve it 4 is the prefix number you dial to make an international telephone call Corporate Headquarters Worldwide e Support E mail support zyxel com tw e Sales E mail sales zyxel com tw Telephone 886 3 578 3942 e Fax 886 3 578 2439 Web www zyxel com e Regular Mail ZyXEL Communications Corp 6 Innovation Road II Science Park Hsinchu 300 Taiwan China ZyXEL Communications Beijing Corp e Support E mail cso zycn zyxel cn e Sales E mail sales zyxel cn e Telephone 86 010 82800646 e Fax 86 010 82800587 e Address 902 Unit B Hor
27. ng Port 8 Ring Port 9 Ring Port 10 Ring Port 11 Ring Port 12 Ring Port 13 Ring Port 14 Ring Port 15 Ring Port 16 Ring Port 17 Ring Port 18 Ring Port 19 Ring Port 20 Ring Port 21 Ring Port 22 Ring Port 23 Ring Port 24 26 VLC1324G User s Guide Chapter 2 VLC Specifications Figure 5 ES 5000 5005 Cable Telco 50 Pin Assignments Splitter Card End Tip Port 10 Tip Port 11 Tip Port 12 Tip Port 13 Tip Port 14 Tip Port 15 Tip Port 16 Tip Port 17 Tip Port 18 Tip Port 19 Tip Port 20 Tip Port 21 Tip Port 22 Tip Port 23 Tip Port 24 AN 42 ilo L O O a a a a EF Tip Port 3 Tip Port 4 Tip Port 5 Tip Port 6 Tip Port 7 Tip Port 8 Tip Port 9 Ring Port 1 Ring Port 2 Ring Port 3 Ring Port 4 Ring Port 5 Ring Port 6 Ring Port 7 Ring Port 8 Ring Port 9 Ring Port 10 Ring Port 11 Ring Port 12 Ring Port 13 Ring Port 14 Ring Port 15 Ring Port 16 Ring Port 17 Ring Port 18 Ring Port 19 Ring Port 20 Ring Port 21 Ring Port 22 Ring Port 23 Ring Port 24 Figure 6 IES 6000 Cable Telco 50 Pin Assignments VLC End Port 1 Port 2 Port 3 Port 4 Port 5 Port 6 Port 7 Port 8 Port 9 Port 10 Port 11 Port 12 Port 13 Port 14 Port 15 Port 16 Port 17 Port 18 Port 19 Port 20 Port 21 Port 22 Port 23 Port 24 Port 1 Port 2 Port 3 Port 4 Port 5 Port 6 Port 7 Port 8 Port 9 Port 10 Port 11 Port 12 Port 13 Port 14 Port 15 Port 16 Port 17 Port 18 Lg 44 Gr4 129 EFS oz L4 Ev EL
28. ngs that could harm you or your device LES Notes tell you other important information for example other things you may need to configure or helpful tips or recommendations Syntax Conventions e The VLC1324G may be referred to as the line card the VLC the device or the system in this User s Guide e The VLC1324G the VLC the device and the line card refer to the VLC1324G 51 for VDSL over POTS Annex A They also refer to the VLC1324G 53 for VDSL over ISDN Annex B Differentiation 1s made where needed e TES refers to the IES 5000 or IES 6000 system including the main chassis and all associated cards e MSC refers to the MSC1000GA management switch card Product labels screen names field labels and field choices are all in bold font A key stroke is denoted by square brackets and uppercase text for example ENTER means the enter or return key on your keyboard Enter means for you to type one or more characters and then press the ENTER key Select or choose means for you to use one of the predefined choices A right angle bracket gt within a screen name denotes a mouse click For example Maintenance gt Log gt Log Setting means you first click Maintenance in the navigation panel then the Log sub menu and finally the Log Setting tab to get to that screen Units of measurement may denote the metric value or th
29. nments MINI RJ 11 MALE Pin 2 TXD Pin 3 RXD Pin 4 GND 2 6 VSC1224 41 The following table lists the splitter card specifications Table 8 VSC1224 41 CO Impedance Splitter Card Specifications COUNTRY 2 7 VSC1224 43U The VSC1224 43U provides an impedance of 135 ohms and 150 ohms for ISDN VLC1324G User s Guide 29 Chapter 2 VLC Specifications VLC1324G User s Guide VLC Troubleshooting This chapter covers potential problems and possible remedies After each problem description some steps are provided to help you to diagnose and solve the problem 3 1 The SYS or PWR LED Does Not Turn On Table 9 SYS LED Troubleshooting STEPS CORRECTIVE ACTION Make sure the power wires are properly connected to the power supply and the power supply is operating normally Make sure you are using the correct power source refer to the IES User s Guide for details 1 Make sure the power wires are connected properly Make sure the line card is properly installed The LED itself or the unit may be faulty contact your vendor 3 2 The ALM LED Is On The ALM alarm LED lights when the line card is overheated or the voltage readings are outside the tolerance levels Table 10 ALM LED Troubleshooting STEPS CORRECTIVE ACTION Use the sys monitor show command to verify the cause of the alarm See step 2 if the unit is overheated and step 3 if the voltages are out of the allowed ranges Ensure that the IES is installed
30. nnr 28 Figure 8 Console Cable Mini RJ 11 Male Connector r rrrrrrevnnenvnnrrvnnennenennenevnnnennnnennnnevnnnennnennnnnnnnnene 29 ee Eg Ge 20 eE 33 Figure 10 Example N S VANN ncadastavesitacaiussanweransvansedaanenousseansunagiaiaiaisciatannsnndnetanestabitamesunaundaasnubes 35 VLC1324G User s Guide a List of Figures 10 VLC1324G User s Guide List of Tables List of Tables Table 1 VDSL2 Profile Maximum Transfer Rates Table 2 Front Panel Ports KNE ee EE RE Ne ia kk oka kk kai 21 Table 4 VLC Specifications Table 5 VLC Telco 50 Connector Pin Assignments Te VENN gl Jeter 28 Table 7 Console Cable Connector Pin Assignments Table 8 VSC 1224 41 CO Impedance Splitter Card Specifications lio A Ser NNN 31 Table 10 ALM LED Troubleshooting Table 11 VDSL2 Data Transmission Troubleshooting Tabie 12 Local Server Troubleshooting aki k ii sela ki qon ie l kk ea kak eka Nar ks I kan A kap kd a 32 Table 13 SYNC rate Troubleshooting VLC1324G User s Guide List of Tables 12 VLC1324G User s Guide VLC Overview 15 VLC Specifications 23 VLC Troubleshooting 31 VLC Overview This chapter introduces the VDSL2 line card s general features default settings and hardware 1 1 VLC Overview The VLC VDSL2 Line Card is perfect for ISPs or large building applications seeking to provide high bandwidth broadband services to subscribers while minimizing costs One VLC p
31. ofile starts at 138 kHz and the edge frequency of the upper band of the 17a profile is 17 664 MHz e The VDSL2 profiles are programmable and automatically adapt according to the line condition of each VDSL2 line 16 VLC1324G User s Guide Chapter 1 VLC Overview VDSL2 to ADSL2 Fallback The VLC can automatically use ADSL2 for connections where VDSL2 training fails This allows a longer connection distance Spectral Mask PSD Power Spectral Density defines the distribution of a VDSL line s power in the frequency domain A PSD mask is a template that specifies the maximum allowable PSD for a line The VLC transmitter signal complies with the Power Spectrum Density PSD mask specified in ITU T G 993 2 and supports masks EU32 D32 EU36 D48 and EU40 D48 Latency Mode The VLC supports the latency path function specified in ITU T G 993 2 and you can manually configure the payload transfer delay for interleaved transmissions Rate Adaption Rate adaption lets the VLC adjust from the configured transmission rate to the attainable transmission rate automatically depending on the line quality The VDSL transmission rate then stays at the new rate or adjusts if line quality improves or deteriorates The rate adaptation conforms to ITU T G 993 2 and G 997 1 and is manually configurable and can adjust automatically based on the line quality as determined by the Signal to Noise Ratio SNR Trellis Coding The VLCuses Trellis coding
32. one card at a time and do not place fingers or objects inside the chassis Cover empty slots with slot covers This product is recyclable Dispose of it properly VLC1324G User s Guide Safety Warnings 6 VLC1324G User s Guide Table of Contents Table of Contents ATOUT EN A TON TT EE RE 3 Bee NE OE 4 IG MALIS M ENTRO Tm 5 TETEN 7 AE RR ETE EE EE EEE TE 9 TT 11 Part I Introduction Specifications and Troubleshooting 13 Chapter 1 SEE GT EE EE EE MR EE EEE 15 TTV ari kat es cd cere a a e ank a a kb ke kk a ok pe RE ko Sr like a EE Se ek Dil 15 EA FA DONN A ww lift dil k k knn a di l a kak nd kd a kaa kk Ek kk kk ks a bid EE kk ik pon 15 NNN a epa qa a eta e a e ka ak pian ak tan eis a pe CNET 15 PTE eee 20 IP NNN E T 21 LIN 21 VEN ai kata a it ea k kk e aa PEC ERZE WEP en ae kk bk kek re n a ki ale kk n 21 To VOLA aT PTS SOO ea E 21 Chapter 2 Fk Ser Le EE EE EE NE 23 AG EA ED e EEE OE NN EN 2d 2 2 VLC Firmware Naming Conventions uus kone seven y m kk ka kita enki ke PUN ke e ID AUC CG ka EA KE 25 2 3 Telco 50 Connector Pin Assignments hakke ek kk n ak A ik ki k 25 2 4 Wire Gauge Specifications suee aaa aaa aaa aaa aa aaa ae aaa aaaaeateetoaeaoseseseooteosoueooueooueooueosonosonosenooen 28 ee EE JE EE 28 JR EEE EE ki Ok d ap aa ke a a Ek kk ki e eO X O 29 NNN NES TET 29 Chapter 3 Eeg ER EE m 31 A The SIS OP PWR LED Does Not TN Sele 31 3
33. rd is functioning normally 1 6 VSC1224 41 POTS Splitter Figure 2 Front Panel of VSC1224 41 VSC1224 41 VDSL SPLITTER CARD TZ A 24 port POTS splitter is used to differentiate analog signal from the VDSL2 band The VLC1324G 51 uses the VSC1224 41 and the VLC1324G 53 uses the VSC1224 43U The splitter is installed in the splitter chassis See the IES User s Guide for installation instructions VLC1324G User s Guide 2 Chapter 1 VLC Overview 22 VLC1324G User s Guide VLC Specifications This chapter gives details about the line card hardware and features 2 1 VLC Product Specifications VLC1324G User s Guide Table 4 VLC Specifications Dimensions 390 6 mm W x 240 0 mm D x 13 8 mm H Wen e One mini RJ11 console port for local management Storage Temperature 40 C 70 C Operation Humidity 10 90 RH non condensing Storage Humidity 10 95 RH non condensing Power Consumption Less than 70 Watts Power Input 36 72 VDC typical 48 VDC Fuse Rating Number of fuses 1 Type T Amps 4 Volts AC 250 Dimensions 5mm D x 20mm L VDSL2 Compliance ITU T VDSL2 Standard e G9932 994 1 Max Number of IGMP 128 Filter Profiles Supported VDSL2 8a 8b 8c 8d 12a 12b 17a Profiles Number of VLANS per Up to 1 K individual VLANs card External Splitter Details The VLC1324G 51 uses the VSC1224 41 splitter The VLC1324G 53 uses the VSC1224 43U splitter The splitter has a front panel
34. rovides VDSL2 service for 24 subscribers over existing telephone wiring thus avoiding the cost and hassle of installing new wiring The line from the user carries both the VDSL2 and the voice signals For each line the splitter card separates the high frequency VDSL2 signal from the voice band signal and feeds the VDSL2 signal to the line card while the voice band signal is diverted to the central office switch or PBX Private Branch Exchange Use the Telco 50 connector pin assignments in Section 2 3 on page 25 along with the directions and safety warnings in the IES User s Guide to install the line card and make the necessary connections 1 2 VDSL2 Profiles Overview Here are the VDSL2 maximum transmission rates that the VLC supports at the time of writing The actual transfer rates will vary depending on what the subscriber s device supports the line conditions and the connection distance Table 1 VDSL2 Profile Maximum Transfer Rates VDSL2 PROFILE MAXIMUM DOWNSTREAM MAXIMUM UPSTREAM 8a b c d 85 Mbps 18 Mbps 12a b 85 Mbps 50 Mbps 1 3 Key Features Here is a partial list of the VLC s features 1 These are the highest link rates attained in testing Actual data transfer rates will vary These rates are for a single port The ports cannot all simultaneously link up at these rates VLC1324G User s Guide 15 Chapter 1 VLC Overview VDSL2 Compliance e ITU T G 993 2 G 994 1 Discrete Multi Tone DMT Modulation
35. specify You may enable disable the MAC filter on specific ports You may specify up to ten MAC addresses per port MAC Count Limit You can limit the number of MAC addresses that may be dynamically learned on a port You may enable disable the MAC count filter on individual ports 18 VLC1324G User s Guide Chapter 1 VLC Overview IGMP Snooping The VLC supports IGMP snooping enabling group multicast traffic to be only forwarded to ports that are members of that group thus allowing you to significantly reduce multicast traffic passing through your VLC IGMP Filter The IGMP filter defines multicast groups a port can join You can create IGMP filter profiles which allow access to a multicast group then assign the IGMP filter to a specific VDSL2 port Multicast Group Limit You can limit the number of multicast groups a subscriber on a port can join You may enable disable the multicast group limit on individual ports Discarding of IGMP Query Messages The VLC discards IGMP query messages received from subscriber ports This prevents subscribers from hosting IGMP multicast servers IGMP Statistics The VLC records the number of active users in an IGMP multicast channel multicast group The VLC also records IGMP message statistics on a per port basis to ease management and troubleshooting IGMP Message Rate Limiting The VLC can limit how many IGMP message packets a subscriber can send per second This prevents subscribers
36. tects the network from disruptions of service caused by subscriber devices spoofing the MAC address of ISP servers Transparent LAN Service TLS Use TLS also known as VLAN stacking to add an outer VLAN tag to the inner IEEE 802 1Q tagged frames that enter the network This allows a service provider to provide different services based on specific VLANS for many different customers 1 4 Front Panel of VLC The figure below shows the front panel of the VLC 20 VLC1324G User s Guide Chapter 1 VLC Overview Figure 1 Front Panel VLC1324G 51 VDSL LINE CARD 1 5 Ports and LEDs of VLC These are the details of the VLC ports and LEDS 1 5 1 Ports The following table describes the port labels on the front panel Table 2 Front Panel Ports LABEL o DESCRIPTION gt For Lo MENSEM purposes this mini RJ 11port connects to a computer when the line card is not manageable from the MSC 1 24 These Telco 50 connectors are for connecting the VLC to the splitter cards 1 5 2 LEDs The following table describes the LED indicators on the front panel of the VLC Table 3 LED Descriptions an COLOR STATUS DESCRIPTION ee The line card is turned on Off The line card is off NE LEN The line card is rebooting and performing self diagnostic tests On The line card is on and functioning properly The power is off or the line card is malfunctioning On Therei is a hardware failure or alarm Ple The line ca
37. tion for the clients In addition you can set the system to forward client DHCP requests to specific DHCP servers based on the VLAN ID You can also specify up to two DHCP servers for each VLAN to provide failover protection Rate Limiting Rate limiting on the subscriber ports allows service providers to offer tiered service in increments of 64 Kbps This service differentiation is not only to fulfill the needs of different customers but also to provide a network infrastructure that combines guaranteed performance and flexibility in service provisioning DHCP Relay Option 82 The system supports DHCP relay agent82 RFC 3046 that adds additional information to client DHCP requests that the MSC relays to a DHCP server It also supports adding the sub option 2 Remote ID with additional information DHCP Snooping DHCP snooping allows the system to identify packets with DHCP server assigned IP address es and block access of devices using unknown IP addresses on a subscriber port You can also manually add static IP addresses to the DHCP snooping table Anti IP Address Spoofing With DHCP snooping a line card records which IP addresses are assigned on each port The line card drops packets from a device using a different IP address Anti MAC Address Spoofing The VLC checks to make sure the MAC addresses of the devices connected to the DSL ports are not the same as MAC addresses of devices connected to the Ethernet network This pro
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