Concept Guide
Debugging and Verifying MSTP Congurations........................................................................................................ 545
37 Multicast Features................................................................................................................................... 548
Enabling IP Multicast.....................................................................................................................................................548
Implementation Information..........................................................................................................................................548
First Packet Forwarding for Lossless Multicast.........................................................................................................549
Multicast Policies...........................................................................................................................................................549
IPv4 Multicast Policies..................................................................................................................................................549
Limiting the Number of Multicast Routes............................................................................................................ 549
Preventing a Host from Joining a Group..............................................................................................................550
Rate Limiting IGMP Join Requests........................................................................................................................552
Preventing a PIM Router from Forming an Adjacency....................................................................................... 553
Preventing a Source from Registering with the RP............................................................................................ 553
Preventing a PIM Router from Processing a Join............................................................................................... 556
Understanding Multicast Traceroute (mtrace).......................................................................................................... 556
Important Points to Remember..............................................................................................................................557
Printing Multicast Traceroute (mtrace) Paths........................................................................................................... 557
Supported Error Codes.................................................................................................................................................558
mtrace Scenarios...........................................................................................................................................................559
38 Open Shortest Path First (OSPFv2 and OSPFv3)................................................................................... 565
Protocol Overview.........................................................................................................................................................565
Autonomous System (AS) Areas........................................................................................................................... 565
Area Types................................................................................................................................................................ 566
Networks and Neighbors........................................................................................................................................ 567
Router Types............................................................................................................................................................ 567
Link-State Advertisements (LSAs)........................................................................................................................569
Router Priority and Cost......................................................................................................................................... 570
OSPF with the Dell Networking OS.............................................................................................................................571
Graceful Restart.......................................................................................................................................................572
Fast Convergence (OSPFv2, IPv4 Only).............................................................................................................. 573
Processing SNMP and Sending SNMP Traps......................................................................................................573
OSPF ACK Packing..................................................................................................................................................573
Setting OSPF Adjacency with Cisco Routers.......................................................................................................573
Conguration Information............................................................................................................................................. 574
Conguration Task List for OSPFv2 (OSPF for IPv4).........................................................................................574
Troubleshooting OSPFv2........................................................................................................................................585
OSPFv3 NSSA............................................................................................................................................................... 589
NSSA Options..........................................................................................................................................................589
Conguration Task List for OSPFv3 (OSPF for IPv6).............................................................................................. 589
Enabling IPv6 Unicast Routing...............................................................................................................................590
Assigning IPv6 Addresses on an Interface........................................................................................................... 590
Assigning Area ID on an Interface...........................................................................................................................591
Assigning OSPFv3 Process ID and Router ID Globally.........................................................................................591
Conguring Stub Areas...........................................................................................................................................592
Conguring Passive-Interface................................................................................................................................592
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