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IP Multicast Monitoring and Troubleshooting

Table 45 summarizes the command-line interface (CLI) commands you can use to monitor IP multicast. In the table, the commands are grouped by functionality. In the remainder of this chapter, they are explained alphabetically.

Table 45:
Task Category
Task or Information to Monitor
Command
Generic IP Multicast Information
Entries in the multicast forwarding cache
show multicast route on page 460
Entries in the multicast next-hop table.
show multicast nexthops on page 459
Multicast reverse-path-forwarding calculations.
show multicast rpf on page 462
Administratively scoped addresses.
show multicast scope on page 465
Announced multicast sessions.
show multicast sessions on page 466
Multicast statistics.
show multicast statistics on page 466
Clear multicast statistics.
clear multicast statistics on page 446
Most active multicast groups
show multicast usage on page 469
DVMRP
DVMRP and PIM tunnels.
show multicast tunnels on page 468
DVMRP graft retransmission queue.
show dvmrp grafts on page 449
DVMRP neighbors.
show dvmrp neighbors on page 451
DVMRP prefixes.
show dvmrp prefix on page 452
DVMRP prunes.
show dvmrp prunes on page 454
Status of interfaces on which DVMRP is configured.
show dvmrp interfaces on page 450
Most active DVMRP groups
show multicast usage on page 469
MSDP
MSDP peers.
show msdp on page 457
Clear MSDP source active cache.
clear msdp cache on page 446
MSDP statistics.
show msdp statistics on page 458
Clear MSDP statistics.
clear msdp statistics on page 446
Test MSDP peers.
test msdp on page 482
PIM
Bootstrap routers.
show pim bootstrap on page 470
PIM groups.
show pim join on page 472
Clear the PIM join and prune states.
clear pim join on page 447
Status of interfaces on which PIM is configured.
show pim interfaces on page 471
PIM neighbors.
show pim neighbors on page 476
Rendezvous points.
show pim rps on page 477
PIM source RPF state.
show pim source on page 479
PIM (*,*,RP) join and prune states.
show pim wildcard on page 481
PIM statistics.
show pim statistics on page 479
Clear PIM statistics.
clear pim statistics on page 448
Most active PIM groups
show multicast usage on page 469
IGMP
Members of IGMP groups.
show igmp group on page 454
Members of IGMP groups by interface.
show igmp interface on page 455
Clear IGMP group members.
clear igmp membership on page 443
IGMP statistics.
show igmp statistics on page 456
Clear IGMP statistics.
clear igmp statistics on page 445
SAP/SDP
Session announcement addresses.
show sap listen on page 481

 

Commands for Monitoring IP Multicast


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