Cisco Catalyst 3850 series User Manual

PIM version:2, mode:dense
PIM DR:172.16.8.1 (this system)
PIM neighbor count:0
PIM Hello/Query interval:30 seconds
PIM State-Refresh processing:enabled
PIM State-Refresh origination:enabled, interval:60 seconds
PIM NBMA mode:disabled
PIM ATM multipoint signalling:disabled
PIM domain border:disabled
Multicast Tagswitching:disabled
The S in the Mode field of the following show ip pim neighbor [interface] command output indicates that
the neighbor has the PIM Dense Mode State Refresh feature configured.
Router# show ip pim neighbor
PIM Neighbor Table
Neighbor Interface Uptime/Expires Ver DR
Address Priority/Mode
172.16.5.1 Ethernet1/1 00:09:03/00:01:41 v2 1 / B S
Monitoring and Maintaining PIM DM State Refresh
Following are the PIM Dense Mode State Refresh control messages that are sent and received by a PIM router
after the debug ip pim privileged EXEC command is configured for multicast group 239.0.0.1:
Router# debug ip pim 239.0.0.1
*Mar 1 00:25:10.416:PIM:Originating refresh message for
(172.16.8.3,239.0.0.1)
*Mar 1 00:25:10.416:PIM:Send SR on GigabitEthernet1/1/0 for (172.16.8.3,239.0.0.1)
TTL=9
The following output from the show ip mroute command displays are the resulting prune timer changes for
GigabitEthernet interface1/0/0 and multicast group 239.0.0.1. (The following output assumes that the debug
ip pim privileged EXEC command has already been configured on the router.) In the first output from the
show ip mroute command, the prune timer reads 00:02:06. The debug messages indicate that a PIM Dense
Mode State Refresh control message is received and sent on Ethernet interface 1/0, and that other PIM Dense
Mode State Refresh routers were discovered. In the second output from the show ip mroute command, the
prune timer has been reset to 00:02:55.
Router# show ip mroute 239.0.0.1
(172.16.8.3, 239.0.0.1), 00:09:50/00:02:06, flags:PT
Incoming interface:GigabitEthernet1/1/0, RPF nbr 172.16.5.2
Outgoing interface list:
GigabitEthernet1/0/0, Prune/Dense, 00:09:43/00:02:06
Router#
*Mar 1 00:32:06.657:PIM:SR on iif from 172.16.5.2 orig 172.16.8.1 for
(172.16.8.3,239.0.0.1)
*Mar 1 00:32:06.661: flags:prune-indicator
*Mar 1 00:32:06.661:PIM:Cached metric is [0/0]
*Mar 1 00:32:06.661:PIM:Keep RPF nbr 172.16.5.2
*Mar 1 00:32:06.661:PIM:Send SR on Ethernet1/0 for (172.16.8.3,239.0.0.1)
TTL=8
*Mar 1 00:32:06.661: flags:prune-indicator
Router# show ip mroute 239.0.0.1
(172.16.8.3, 239.0.0.1), 00:10:01/00:02:55, flags:PT
Incoming interface:GigabitEthernet1/1/0, RPF nbr 172.16.5.2
Outgoing interface list:
GigabitEthernet1/0/0, Prune/Dense, 00:09:55/00:02:55
IP Multicast Routing Configuration Guide, Cisco IOS XE Release 3.6E (Catalyst 3850 Switches)
382 OL-32598-01
IP Multicast Optimization: PIM Dense Mode State Refresh
Monitoring and Maintaining PIM DM State Refresh

Cisco Catalyst 3850 series Specifications

General

Brand	Cisco
Model	Catalyst 3850 series
Category	Switch
Language	English