Modifying The Pim Router-Query Message Interval (Cli) - Cisco Catalyst 3850 series Configuration Manual

Configuring PIM
Command or Action
Step 5
end
Example:
Device(config)# end
Step 6 show running-config
Example:
Device# show running-config
Step 7 copy running-config startup-config
Example:
Device# copy running-config
startup-config
Related Topics
PIM Shared Tree and Source Tree, on page 137

Modifying the PIM Router-Query Message Interval (CLI)

PIM routers and multilayer devices send PIM router-query messages to find which device will be the designated
router (DR) for each LAN segment (subnet). The DR is responsible for sending IGMP host-query messages
to all hosts on the directly connected LAN.
With PIM DM operation, the DR has meaning only if IGMPv1 is in use. IGMPv1 does not have an IGMP
querier election process, so the elected DR functions as the IGMP querier. With PIM-SM operation, the DR
is the device that is directly connected to the multicast source. It sends PIM register messages to notify the
RP that multicast traffic from a source needs to be forwarded down the shared tree. In this case, the DR is the
device with the highest IP address.
This procedure is optional.
OL-32598-01
Purpose
Returns to privileged EXEC mode.
Verifies your entries.
(Optional) Saves your entries in the configuration file.
IP Multicast Routing Configuration Guide, Cisco IOS XE Release 3.6E (Catalyst 3850 Switches)
Modifying the PIM Router-Query Message Interval (CLI)
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