Table 5-13. Command Summary
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| clear ip cgmp [type number]
| Causes a CGMP Leave message to be sent, clearing all multicast group entries from the caches of receiving Catalyst switches.
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| debug ip igmp
| Displays IGMP messages received and sent, as well as IGMP-host-related events.
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| debug ip packet [access-list-number | detail]
| Displays IP packets received and sent. The optional access list is used to filter uninteresting packets from the display.
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| debug ip pim [group]
| Displays PIM messages received and sent, as well as PIM-related events.
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| ip igmp query-interval seconds
| Changes the interval at which IGMP queries are sent from the default 60 seconds.
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| ip igmp query-max-response-time seconds
| Changes the Max Response Time advertised in IGMP queries from the default 10 seconds.
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| ip igmp query-timeout seconds
| Changes the default time the router waits to hear an IGMP query from the DR or querier before taking over as the DR or querier. The default is 2 times the query interval.
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| ip igmp version {1 | 2}
| Sets the IGMP version on an interface. The default is 2.
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| ip multicast use-functional
| Enables the mapping of IP multicast addresses to the Token Ring functional address 0xC000.0004.0000.
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| ip pim bsr-candidate type number hash-mask-length [priority]
| Configures the router to announce itself as a C\_BSR.
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| ip pim message-interval seconds
| Changes the interval at which sparse-mode Join-Prune messages are sent from the default 60 seconds.
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| ip pim query-interval seconds
| Changes the interval at which PIMv2 Hello or PIMv1 Router Query messages are sent from the default 30 seconds.
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| ip pim spt-threshold {kbps | infinity} [group-list access-list-number]
| Specifies the receive rate at which a PIM-SM router switches from the RPT to the SPT. The default is to switch after the first multicast packet is received.
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| ip pim version [1 | 2]
| Sets an interface to use PIMv1 or PIMv2. The default is 2.
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| show ip igmp groups [group-name | group-address | type number]
| Displays the list of multicast groups for which there are directly connected members, learned via IGMP.
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| show ip mroute [group-name | group-address] [source] [summary] [count] [active kbps]
| Displays the contents of the IP multicast routing table.
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| show ip pim neighbor [type number]
| Displays the list of neighbors discovered by PIMv1 Router Query messages or PIMv2 Hellos.
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| show ip pim rp [group-name | group-address | mapping]
| Displays the active RPs associated with multicast groups or mroutes.
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| show ip route [address [mask] [longer-prefixes]] | [protocol [process-id]]
| Displays routes in the unicast IP routing table.
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