PurposeCommand or Action
Configures the frequency at which the device sends PIM router-query
messages.
ip pim query-interval seconds
Example:
Device(config-if)# ip pim
Step 4
The default is 30 seconds. The range is 1 to 65535.
query-interval 45
Returns to privileged EXEC mode.end
Example:
Device(config)# end
Step 5
Verifies your entries.
show ip igmp interface [interface-id]
Example:
Device# show ip igmp interface
Step 6
(Optional) Saves your entries in the configuration file.copy running-config startup-config
Example:
Device# copy running-config
Step 7
startup-config
Verifying PIM Operations
Verifying IP Multicast Operation in a PIM-SM or a PIM-SSM Network
When you verify the operation of IP multicast in a PIM-SM network environment or in an PIM-SSM network
environment, a useful approach is to begin the verification process on the last hop router, and then continue
the verification process on the routers along the SPT until the first hop router has been reached. The goal of
the verification is to ensure that IP multicast traffic is being routed properly through an IP multicast network.
Perform the following optional tasks to verify IP multicast operation in a PIM-SM or a PIM-SSM network.
The steps in these tasks help to locate a faulty hop when sources and receivers are not operating as expected.
If packets are not reaching their expected destinations, you might want consider disabling IP multicast
fast switching, which would place the router in process switching mode. If packets begin reaching their
proper destinations after IP multicast fast switching has been disabled, then the issue most likely was
related to IP multicast fast switching.
Note
IP Multicast Routing Configuration Guide, Cisco IOS XE Release 3.6E (Catalyst 3850 Switches)
OL-32598-01 171
Configuring PIM
Verifying PIM Operations
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