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CH A P T E R

9

Managing IP Multicast

To assist in management of the IP multicast, routers can be enabled to send SNMP traps (with IP multicast, MSDP, and PIM information) to the SNMP server. To enable the traps, use the following commands:

snmp-server enable traps ipmulticast snmp-server enable traps msdp snmp-server enable traps pim

Details for each of the MIBs for IP multicast can be found at: ftp://ftpeng.cisco.com/ipmulticast/config-notes/mib-info.txt

Layer 2 switches can be enabled to send IGMP traps.

Table 9-1 lists the show commands and tools that can be used to manage and monitor IP multicast configurations and traffic.

Table 9-1

Show Commands and

Tools

Layer 2 Switch show ip igmp profile show ip igmp snooping show igmp mode show igmp querier information show igmp statistics show cgmp show mls multicast show multicast group show multicast group count show multicast protocols status show multicast router

Layer 3 Switch show ip mcache show ip mpacket show ip mroute show ip pim interface show ip pim neighbor show ip pim rp show mls rp ip multicast show ip rpf

MSDP show ip msdp count show ip msdp peer show ip msdp sa-cache show ip msdp summary

Tools mstat mtrace mrinfo

The Layer 2 Switch commands are platform dependent.

Cisco AVVID Network Infrastructure IP Multicast Design

9-1

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