Cisco Catalyst 6X06 RMON Agent License
Contents
1. PRODUCT BULLETIN No 919 Catalyst 6000 Family Release 5 1CSX and 5 2CSX Supervisor Software Overview Release 5 1CSX of the Catalyst 6000 Family supervisor software introduces support for the Catalyst 6000 Family switches including the Catalyst 6009 chassis and the Catalyst 6509 chassis and a variety of Ethernet Fast Ethernet and Gigabit Ethernet line cards Release 5 2CSX runs on all Catalyst 6000 Family Supervisors Release 5 2CSX of the Catalyst 6000 Family Supervisor software adds support for high performance M ultilayer Switching M odule M SM and the six slot Catalyst 6006 and Catalyst 6506 chassis as well as providing a maintenance upgrade from the 5 1CSX release Release 5 1CSX runs on all Catalyst 6000 Family Supervisors Features ata Glance New Hardware Support Release 5 1CSX e Catalyst 6009 32 G bps nine slot chassis switching platform W S C6009 e Catalyst 6509 256 G bps nine slot chassis switching platform W S C 6509 e Catalyst 6000 Family Supervisor Engine with dual port 1000BaseX uplinks GBIC WS X 6K SUP1 2GE e Eight port Gigabit Ethernet switching module GBIC WS X 6408 GBIC e 48 port 10 100BaseT X Fast Ethernet switching module RJ 45 W S X 6248 R 45 e 24 port 100BaseFX multimode Fast Ethernet switching module MT RJ WS X 6224 100FX M T Release 5 2CSX e Catalyst 6006 32 G bps six slot chassis switching platform W S C 6006 e Catalyst 6506 256 G bps six slot chassis switching platform2. Blocked for Red Path Becomes Alive In addition to the enhancements Cisco has made to the Spanning Tree Protocol PortFast UplinkFast BackboneF ast the Catalyst 6000 and 6500 Series switches now have the ability to enable or disable STP on a per VLAN basis Previous to this STP had to be either enabled or disabled on the entire switch This enhancement allows the administrator to better define where the Spanning Tree Protocol should operate in the network For example VLANs that are architected without the possibility of multiple redundant links that is loop might have improved stability when STP is disabled N ote that STP is enabled by default on all VLAN s and on all newly created VLANs Useful References e Catalyst 6000 Family Overview http cco warp public cc cisco mkt sw itch cat 6000 index shtml e Catalyst 6000 Family Documentation http www cisco com univercd cc td doc product lan cat6000 index htm e Catalyst 6000 M ultilayer Switching M odule http cco warp public cc cisco mkt sw itch cat 6000 prodlit c60fm_ds htm e Catalyst 6000 Family Release N otes http www cisco com univercd cc td doc product lan cat6000 relnotes index htm System Requirements for 5 1CSX e Release 5 1CSX software runs on all Cisco Catalyst 6000 Family Supervisors System Requirements for 5 2CSX e Release 5 2CSX software runs on all Cisco Catalyst 6000 Family Supervisors All contents are Copyright 1992 2002 Cisco Systems Inc All rights reser
3. CCO in the Software Image Library Customers who are unableto download the files electronically can order a softwarekit with 3 5 inch IBM formatted floppy disks by contacting Cisco at 408 526 4000 or in North America call 800 553 N ETS 6387 Cisco SYSTEMS Corporate H eadquarters European H eadquarters Americas Asia H eadquarters Cisco Systems Inc Cisco Systems Europe s a rl H eadquarters Nihon Cisco Systems K K 170 West Tasman Drive Parc Evolic Batiment L1 L2 Cisco Systems Inc Fuji Building 9th Floor San Jose CA 95134 1706 16 Avenue du Quebec 170 West Tasman Drive 3 2 3 M arunouchi USA Villebon BP 706 San Jose CA 95134 1706 Chiyoda ku Tokyo 100 http www cisco com 91961 Courtaboeuf C edex USA Japan Tel 408 526 4000 France http www cisco com http www cisco com 800 553 N ETS 6387 http www europe cisco com Tel 408 526 7660 Tel 8135219 6250 Fax 408 526 4100 Tel 33169186100 Fax 408 527 0883 Fax 8135219 6001 Fax 33 1 69 28 83 26 Cisco Systems has more than 200 offices in the following countries Addresses phone numbers and fax numbers are listed on the Cisco Connection Online Web site at http www cisco com offices Argentina Australia Austria Belgium Brazil e Canada Chile e China Colombia Costa Rica Croatia e Czech Republic Denmark Dubai UAE Finland France Germany Greece Hong Kong Hungary India Indonesia Ireland Israel e Italy e Japan Korea Luxembourg Malaysi
4. and voice telephone over IP Some of these applications are vital to core business processes while many are not It is the network manager s job to ensure that mission critical application traffic is protected from other bandwidth hungry applications while still enabling less critical applications such as desktop videoconferencing Enterprises that want to deploy new bandwidth hungry applications are judging that it is paramount to also ensure the continued success of mission critical applications over both the LAN and WAN This can be achieved by defining network policies which align network resources with business objectives and are enforced by means of QoS mechanisms Without these Q oS controls nonvital applications can quickly exhaust network resources at the expense of more important ones such as mission critical applications thus compromising business processes and certainly productivity The QoS feature on the Catalyst 6000 Family of switches prioritizes network traffic with IEEE 802 1p class of service CoS values that allow network devices to recognize and deliver high priority traffic in a predictable manner When congestion occurs QoS drops low priority traffic to allow delivery of high priority traffic Ports can be configured as trusted or untrusted indicating whether or not to trust the CoS values in received frames to be consistent with network policy On trusted ports QoS uses received CoS values On untrusted ports QoS replace
5. Drop Threshold Settings Function Up to eight ports may build a channel Ports within channel may be cross module Supports variable length subnet masks for switch IP address on sc0 Classless InterDomain Routing RFC 1518 Provides four user defined levels of drop threshold management per ingress port Provides two user defined levels of drop threshold management for each of two queues per egress port Benefit Allows up to 16 Gbps full duplex 8 Gbps each direction between switches Better redundancy for Fast EtherChannel and Gigabit EtherChannel Allows the administrator to use any subnet mask length required for internal IP addressing scheme Provides a proven mechanism to ensure that higher priority traffic is given preference when a port receives queue fills beyond a user defined threshold Provides a proven mechanism to ensure that higher priority traffic is given preference when a port transmit queue fills beyond a user defined threshold due to network congestion on the egress interface QoS 802 1p Classification lows the switch to set 802 1p class of service CoS values on affic received from a specific port ows the switch to set 802 1p CoS values on traffic destined to a ecific host MAC address or VLAN pair Enables network wide differentiated service levels for differen traffic on an ingress port basis Enables network wide differentiated service levels for traffic destined to specific hosts or
6. servers 802 1Q to ISL VLAN Mapping Uni Directional Link Detection UDLD for Fiber Links SPAN Switch Port Analyzer Enhancements High Capacity RMON Counters lows mapping of up to eight 802 19 VLANs numbered above 1000 to LANs DLD is a new protocol developed by Cisco to detect unidirectional onnectivity on network links hen a unidirectional link is detected UDLD shuts down the ffected port and alerts the user Multiple concurrent SPAN Sessions Up to 2 Ingress RX or both RX TX SPAN sessions Upto 4egress TX only SPAN sessions SPAN multiple source ports independent of VLAN membership SPAN multiple VLANs The SPAN source may now be configured to monitor traffic from multiple VLANs Previously it was only possible to SPAN a single VLAN Provides 64 bit counters for mini RMON MIB objects Allows seamless integration between ISL and 802 1Q VLA numbering Eliminates a number of diffic ult to troubleshoot network problems on fiber Ethernet links including spanning tree topology loops These enhancements provide a great deal of flexibility in connecting external analysis devices to a Catalyst switch Allows use of intrusion detection devices such as Cisco NetRanger at the same time that a Network Analysis M odule or SwitchProbe or other network analyzer is being used on the same switch Enhances mini RM ON capabilities and allows accurate tracking of high speed Gigabit Ethernet ports with
7. 6500 series switches provide the ability to define an EtherChannel composed of ports on separate line cards This combined with the fault tolerant capability of the EtherC hannel protocol has the additional capability of providing extremely rapid recovery in the event of a line card failure IP Address Supernetting IP Supernetting compatible with classless interdomain routing CIDR allows entry of a netmask instead of a subnet mask in defining the IP address for switch Setting the IP address on the switch is required for telnet access to the switch or Simple N etwork M anagement Protocol SN M P management of the switch All contents are Copyright 1992 2002 Cisco Systems Inc All rights reserved Important Notices and Privacy Statement Page 30f 10 QoS Port Level Delay and Drop Threshold Settings N etworks typically operate on a best effort delivery basis All traffic has equal priority and an equal chance of being delivered in a timely manner When congestion occurs all traffic has an equal chance of being dropped H owever network managers are increasingly presented with a variety of bandwidth hungry applications that compete for limited bandwidth on the enterprise network T hese applications havea variety of characteristics They may be mission critical legacy applications with a Web interface online business critical applications or newer multimedia based applications such as desktop videoconferencing Web based training
8. In Figure 1 1 Switch A successfully receives traffic from Switch B on the fiber optic port H owever due to either a faulty fiber optic cable a faulty transmitter in Switch A or receive port failurein Switch B Switch B does not receive traffic from Switch A on the same port The UDLD protocol running on Switch A will signal an error condition and disable the port All contents are Copyright 1992 2002 Cisco Systems Inc All rights reserved Important Notices and Privacy Statement Page 5of 10 Figure 1 1 Switch A Switch B tx rx i lt rX tx In Figure 1 2 Switch B successfully receives traffic from Switch A on the fiber optic port H owever due to faulty wiring Switch A receives traffic from Switch C on this port The UDLD protocol running on Switch A will signal an error condition and disable the port Figure 1 2 Switch A Switch B tx rx Ey EA rx tx Switch C tx In Figure 1 3 Switch A is incorrectly wired for a self loop back to its own port The UDLD protocol will signal an error condition and disable the port Figure 1 3 Switch A tx z A rx SPAN Enhancements The SPAN feature allows the mirroring of network traffic for analysis by a SwitchProbe device or other RMON probe SPAN mirrors traffic from one or more source ports on the same VLAN to a destination port for analysis The Catalyst 6000 Family supports several enhancements to the SPAN capability found in the Cisco Catalyst switches The f
9. Layer 3 IP IP Multicast and IPX Switching With Release5 2CSX softwareand the M ultilayer Switching M odule M SM the Catalyst 6000 Family switches now provide Layer 3 switching which enables Catalyst 6000 Family customers to deploy high performance multiprotocol multilayer switch services in the backbone distribution of their network to support wiring closet switches The M SM which is based on advanced switching ASICs from Cisco uses Cisco Express Forwarding CEF technology to switch packets between subnets and VLANs It combines sophisticated Cisco 1O S software features with advanced ASIC technology to support wire speed multiprotocol routing in a compact manageable platform TheM SM requires a single slot with no slot dependency in any Catalyst 6000 WS C6006 and WS C6009 or Catalyst 6500 WS C 6506 and WS C6509 Series platform The MSM module was designed with fully integrated application specific integrated circuits ASICs enabling aggregate throughput of up to six million packets per second for Layer 3 switching IP IPX and IP multicast Combined with industry leading Cisco 10 S software the high performance M SM enables the Catalyst 6000 Family to be particularly effective as a backbone distribution switch Key Benefits Industry Leading Layer 3 with Cisco IOS Software TheM SM supports feature rich IP IPX and IP multicast Layer 3 switching without sacrificing the performance required in a scalable backbone distribution platf
10. W S C 6506 e Multilayer switching module W S X 6302 M SM e 48 port 10 100BaseT X Fast Ethernet switching module telco RJ 21 WS X 6248 T EL New Software Features Release 5 1CSX e M ultimodule EtherChannel support e IP address supernetting e Quality of Service Q oS port level delay and drop threshold settings e QoS 802 1Q classification drop and delay thresholds e 802 1Q to ISL VLAN mapping All contents are Copyright 1992 2002 Cisco Systems Inc All rights reserved Important Notices and Privacy Statement Page lof 10 Cisco SYSTEMS e Uni Directional Link Detection UDLD for fiber links e Switch Port Analyzer SPAN Enhancements HC RMON high capacity 64 bit counters Release 5 2CSX e Layer 3 IP IP multicast switching e Layer 3 IPX Switching e IP address Load Balancing on Fast or Gigabit EtherC hannel e IEEE GARP VLAN Registration Protocol GVRP e IEEE GARP M ulticast Registration Protocol GM RP e Spanning Tree Protocol STP enable disable per VLAN e Traceroute M IB Use of this feature requires the purchase of the M ultilayer switching module See ordering information below Use of this feature requires the purchase of the M ultilayer switching module and the IPX feature license See ordering information below Table 1 Release 5 1CSX Software Feature Function Benefit Table Feature MultiM odule EtherChannel Support IP Address Supernetting QoS Port Level Delay and
11. a Mexico The Netherlands New Zealand Norway Peru Philippines Poland Portugal Puerto Rico Romania Russia Saudi Arabia Singapore Slovakia Slovenia South Africa Spain Sweden Switzerland Taiwan Thailand Turkey Ukraine United Kingdom United States Venezuela All contents are Copyright 1992 2002 Cisco Systems Inc All rights reserved Important N otices and Privacy Statement Printed in USA Catalyst Cisco Cisco Systems and the Cisco Systems logo are registered trademarks of Cisco Systems Inc in the U S and certain other countries All other trademarks mentioned in this document are the property of their respective owners 9901R 5 99 B amp W
12. es use STP IEEE 802 1D bridge protocol on all Ethernet VLAN s When you create fault tolerant internetworks you must have a loop free path between all nodes in a network In STP an algorithm calculates the best loop free path throughout a Catalyst switched network The switches send and receive spanning tree packets at regular intervals The switches do not forward the packets they use the packets to identify a loop free path The default configuration has STP enabled for all VLANs M ultiple active paths between stations cause loops in the network If a loop exists in the network you might receive duplicate messages W hen loops occur some switches see stations on both sides of the switch This condition confuses the forwarding algorithm and allows duplicate frames to be forwarded All contents are Copyright 1992 2002 Cisco Systems Inc All rights reserved Important Notices and Privacy Statement Page 8 of 10 To provide path redundancy STP defines a tree that spans all switches in an extended network STP forces certain redundant data paths into a standby blocked state If one network segment in the STP becomes unreachable or if STP costs change the spanning tree algorithm reconfigures the spanning tree topology and reestablishes the link by activating the standby path as shown in Figure 2 1 Figure 2 1 Spanning Tree Convergence STP Root STP Root Normal RLQ Forwarding Inquiry and Link Response Link Failure STP
13. irst is the ability to support multiple concurrent SPAN sessions each to a different destination port The Catalyst 6000 family supports two ingress R X or Both RX and TX SPAN sessions and up to four egress T X only SPAN sessions Thefollowing SPAN sessions in Table 3 can all be active at the same time Table 3 Span Example SPAN Source s SPAN Destination SPAN Direction Notes SPAN Session 1 2 10 6 1 Both HP probe on port 6 1 SPAN Session 2 2 11 6 2 RX HP probe on port 6 2 SPAN Session 3 3 1 3 2 7 12 TX SwitchP robe on port 7 12 SPAN Session 4 2 1 3 24 8 11 TX NetRanger on port 8 11 SPAN Session 5 VLAN_4 VLAN_7 8 12 TX Sniffer on port 8 12 SPAN Session 6 VLAN_9 8 10 TX W amp G DA 30 on port 8 10 There can be overlap in the SPAN sources notice that ports 3 1 and 3 2 are in both the second and third SPAN sessions above All contents are Copyright 1992 2002 Cisco Systems Inc All rights reserved Important Notices and Privacy Statement Page 6 of 10 With the ability to SPAN multiple source ports independent of VLAN membership it is now possible to select ports in different VLANs The SPAN source may now be configured to monitor traffic from multiple VLAN s Previously it was only possible to SPAN a single VLAN For example the SPAN source can be set to mirror traffic from VLAN 2 and VLAN 3 and send this traffic to the SPAN destination Release 5 2CSX Feature Descriptions
14. lowing features to scale N ovell networks e Get N earest Server GN S response filtering and round robin GN S support e Novell RIP e SAP protocol and NetBIOS name filtering e Equal cost path loadsharing e Variable RIP and SAP timers e Novell N etBIOS type 20 propagation support for legacy applications that continue to be mission critical e Novell compliant IPX ping utility IP Address Load Balancing on Fast and Gigabit EtherChannel EtherChannel distributes frames across the links in a channel by reducing part of the binary pattern formed from the addresses in the frame to a numerical value that selects one of the links in the channel On the Catalyst 6000 Family of switches EtherChannel frame distribution can use either M AC addresses or IP addresses and either source or destination or both source and destination addresses The selected mode applies to all EtherChannel configured ports on the switch Use the option that provides the greatest variety in your configuration For example if the traffic on a channel is only going to asingleM AC address a router for example using the destination M AC address always chooses the same link in the channel using source addresses or IP addresses may result in better frame distribution The ability to configure EtherChannel frame distribution by IP address is only available on Rev A Supervisor boards on the Catalyst 6000 and 6500 switches To determine the revision of your Supervisor use the sho
15. orm This unique combination of performance and flexibility enables customers to integrate the Catalyst 6000 Family into existing Cisco 1O S network configurations while at the same time scaling their backbone capacity to gigabit speeds Routing protocols supported in the MSM module include Enhanced IGRP EIGRP e Interior Gateway Routing Protocol IGRP e Open Shortest Path First O SPF e Routing Information Protocol RIP Versions and II e Static routes e Route redistribution Additional Cisco IOS Protocols Supported in the Catalyst 6000 Family MSM Module Include e Hot Standby Router Protocol H SRP e Internet Group M anagement Protocol IGM P Versions and II e Dynamic H ost Configuration Protocol DH CP Relay e Cisco Group M anagement Protocol CGM P e Internet Control M essage Protocol ICM P e Gateway Discovery Protocol GDP e ICM P Router Discovery Protocol IR DP e Bootstrap Protocol BO OTP Relay e Protocol Independent M ulticast PIM sparse and dense mode All contents are Copyright 1992 2002 Cisco Systems Inc All rights reserved Important Notices and Privacy Statement Page 7 of 10 Wire Speed IPX Support The Catalyst 6000 Family MSM moduleisalso a full featured IPX router TheM SM provides basic services such as N ovell network RIP and Service Advertising Protocols SAPs N ovell Enhanced IGRP and route distribution among all of these protocols In addition the M SM supports the fol
16. ot including spanning tree topology loops UDLD Hello packets are sent periodically to neighbor devices connected through fiber optic links to keep each deviceinformed about its neighbors When a H ello message is received it is cached and kept in memory for a defined time interval called holdtime after which the cache entry is considered stale and is aged out If a new H ello message is received when a correspondent old cache entry has not been aged out yet then the old entry is dropped and replaced by the new one with a reset time to live timer If a switch running the UDLD protocol receives UDLD hello packets from a neighbor switch but these packets fail to contain the proper UDLD neighbor information the link is flagged as unidirectional and the port is shut down N ote that for UDLD to work properly both switches need to be configured for UDLD If both switches on either side of the fiber optic link are not configured for UDLD the protocol will not shut down the port UDLD is configured on either a global or per port basis It is supported on all Catalyst 6000 Family switches and will be supported on the Catalyst 5000 Family switches in an upcoming software release UDLD is disabled globally on the switch by default O nce enabled globally it will then be enabled on all Ethernet line cards that use fiber media for example 100BaseF X 1000BaseSX and so on Figures 1 1 1 2 and 1 3 show examples of link error conditions UDLD discovers
17. out wrapping counters All contents are Copyright 1992 2002 Cisco Systems Inc All rights reserved Important Notices and Privacy Statement Page 2 of 10 Table 2 Release 5 2CSX Software Feature Function Benefit Table Feature Function Benefit Layer 3 IP IP Multicast e 4 6 M pps Layer 3 switching for IP and IP multicast packets Provides multigigabit in the box Layer 3 switching performance for Switching P and IP multicast packets Requires Multilayer Switching M odule WS X6302 M SM Layer 3 IPX Switching 4 6 M pps Layer 3 switching for IPX packets Provides multigigabit in the box Layer 3 switching performance for PX packets Requires Multilayer Switching M odule WS X6302 M SM and IPX eature license FRC6 M SM IPX IP Address Load Option to use source and destination IP address as load balancing In some configurations IP address based load balancing gives Balancing on Fast scheme for channeling better distribution than MAC address based Gigabit EtherChannel IEEE GVRP GARP VLAN Registration Protocol as specified in 802 19 Allows use of standards based 802 1Q GVRP protocol for configuration of VLANs ona switch Required for full IEEE 802 1Q compliance IEEE GMRP GARP Multicast Registration Protocol as specified in 802 1p Supports standards based 802 1p GM RP protocol for signaling of multicast group membership join and leave requests Required for full IEEE 802 1Q compliance STP Enable Di
18. riority transmit queue buffer is 40 percent full Using transmit queue 1 drop threshold 2 when congestion occurs the switch drops frames with CoS 2 or 3 when the low priority transmit queue buffer is 100 percent full e Frames with CoS 4 5 6 or 7 go to the high priority transmit queue queue 2 Using transmit queue 2 drop threshold 1 when congestion occurs the switch drops frames with CoS 4 or 5 when the high priority transmit queue buffer is 40 percent full Using transmit queue 2 drop threshold 2 when congestion occurs the switch drops frames with CoS 6 or 7 when the high priority transmit queue buffer is 100 percent full All ports in the switch use the same transmit queue and drop threshold configuration All contents are Copyright 1992 2002 Cisco Systems Inc All rights reserved Important Notices and Privacy Statement Page 4of 10 QoS 802 1p Classification QoS evaluates received frames as either classified or unclassified e Frames with CoS values are called classified frames e Frames without CoS values are called unclassified frames On each port QoS applies the port s CoS value the default is zero to unclassified frames or if the port is untrusted Q oS applies the port s CoS value to all frames Before entering the receive queue all frames have either a received CoS value or the applied port CoS value Unclassified frames received on trusted ports and all frames received on untrusted ports may be assigned a CoS val
19. s received CoS values with the port CoS value Each port on the switch has a single receive queue buffer and four user defined levels of thresholds for incoming traffic The receive queue drop threshold percentages are configurable as well the CoS values mapped to each drop threshold All ports in the switch use the same drop threshold configuration The default settings of these thresholds are as follows e Using receive queue drop threshold 1 the switch drops incoming frames with CoS 0 or 1 when the receive queue buffer is 20 percent or more full e Using receive queue drop threshold 2 the switch drops incoming frames with CoS 2 or 3 when the receive queue buffer is 40 percent or more full e Using receive queue drop threshold 3 the switch drops incoming frames with CoS 4 or 5 when the receive queue buffer is 75 percent or more full e Using receive queue drop threshold 4 the switch drops incoming frames with CoS 6 or 7 when the receive queue buffer is 100 percent full On the transmit side each port has a low priority transmit queue and a high priority transmit queue The administrator can configure how the low and high priority transmit queues share the total available transmit queue Each transmit queue has two drop thresholds as follows e Frames with CoS 0 1 2 or 3 go to the low priority transmit queue queue 1 Using transmit queue 1 drop threshold 1 when congestion occurs the switch drops frames with CoS 0 or 1 when the low p
20. sable per Provides the ability to set spanning tree on or off for a given VLAN Provides better granularity of spanning tree parameters VLAN i instead of system wide Allows the administrator to better define where spanning tree should be enabled in the network Traceroute MIB Provides the SNMP MIB object for traceroute Allows an SNMP based network management station to poll for traceroute on the switch Release 5 1CSX Feature Descriptions Multimodule EtherChannel Support With software release 5 1CSX the Catalyst 6000 Family of switches builds additional functionality into the network proven Cisco technique of port bundling called EtherChannel EtherChannel provides parallel bandwidth of up to 1600 M bps Fast EtherChannel full duplex or 16 Gbps Gigabit EtherC hannel between a Catalyst 6000 or 6500 series switch and another switch or host by grouping multiple Fast or Gigabit Ethernet interfaces into single logical transmission paths Two to eight ports of the same speed and configuration Gigabit or Fast Ethernet may be channeled together between neighboring switches or between a switch and a host or server running a compatible channeling protocol If a segment within an EtherChannel fails traffic previously carried over the failed link switches to the remaining segments within the EtherChannel within milliseconds A trap is sent upon a failure identifying the switch the EtherChannel and the failed link The Catalyst 6000 and
21. ue In addition a CoS value may be assigned to all frames from both trusted and untrusted ports destined for a particular host destination M AC address and VLAN number value pair Mapping 802 1Q VLAN IDs to ISL VLAN IDs IEEE 802 1Q VLAN trunks support VLAN s 1 through 4095 ISL VLAN trunks support VLANs 1 through 1024 1005 to 1024 are reserved The switch automatically maps 802 1Q VLANs1000 and lower to ISL VLAN s with the same number T his feature allows the administrator to define mappings of 802 1Q VLANs above 1000 to ISL VLANs Note You can map up to eight VLANs Only one 802 1Q VLAN can be mapped to a specific ISL VLAN For example if 802 1Q VLAN 800 has been automatically mapped to ISL VLAN 800 do not manually map any other 802 1Q VLANsto ISL VLAN 800 Uni Directional Link Detection for Fiber Links UDLD is anew link layer protocol developed by Cisco to detect unidirectional connectivity on network links The UDLD protocol allows devices connected through fiber optic Ethernet Fast Ethernet and Gigabit Ethernet to monitor the physical configuration of the cables and detect when a unidirectional link or a self loop exists When a link error is detected UDLD shuts down the affected port and alerts the user A unidirectional link occurs when traffic transmitted by one device over a link is received by the neighbor but traffic from the neighbor is not received Unidirectional links may cause a variety of problems difficult to troublesho
22. ved Important Notices and Privacy Statement Page 9of 10 Ordering Information The IP IP multicast and IPX Layer 3 switching feature sets are combined in a single image for the M SM Cisco IOS Release 12 0 1a W X 5 6d This image requires the 5 2CSX release or higher running on the Supervisor Please upgrade the Supervisor to the 5 2CSX image or higher before installing the M SM in the chassis Use of Layer 3 IPX switching on the M SM requires purchase of the IPX feature set license Use of mini RM ON on the Catalyst 6000 and 6500 Series switches requires the purchase of the RMON agent license One IPX feature set software license is required for each M SM that will be enabled to Layer 3 switch IPX traffic that is a chassis with dual M SM s does require two licenses Only oneRM ON agent license is required per chassis that is a chassis with redundant supervisors does not require two licenses Licensing is based on the honor system Table 4 Part Numbers Product Number Description Release 5 2CSX Feature Set License SFC6K SUP 5 2 1 Catalyst 6000 Supervisor Flash Image Release 5 2 1 SFC6 M SM 12 0 1W Catalyst 6000 M SM IP IP M ulticast Routing Feature Set FRC6 M SM IPX Catalyst 6000 M SM IPX Feature Set License Mini RMON Agent Licenses WS C6X06 EM S LIC Catalyst 6X06 RM ON Agent License WS C6X09 EM S LIC Catalyst 6X09 RM ON Agent License Customers can download Release 5 2CSX Supervisor software from Cisco Connection Online
23. w module command If the display shows the Sub Type to be L2 Switching Engine II WS F6020A then EtherChannel frame distribution by IP address is configurable on your switch and the default is to use source and destination IP addresses Trace Route MIB Trace Route is helpful in locating routing issues on a distant gateway If the local routing tables are correct on locally administered routers distant routers under another administration may be the cause of incorrectly routed or dropped data packets Trace Route will give a general location of where the packet is getting lost Once a packet is handed to the next gateway it is that gateway s responsibility to see to it that the packet continues on correctly to the final destination The Catalyst 6000 Family of switches now add support the SN M P management information base M IB for Trace Route Spanning Tree Protocol Enable or Disable per VLAN The ability to enable or disable Spanning Tree per VLAN is the latest Cisco enhancement to the Spanning Tree protocol STP is a Layer 2 link management protocol that provides path redundancy while preventing undesirable loops in the network For an Ethernet network to function properly only one active path must exist at Layer 2 between two stations STP operation is transparent to end stations which do not detect whether they are connected to a single LAN segment or a switched LAN of multiple segments The Catalyst 6000 and 6500 series switch
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