Field
Default
Control command
LAN prune delay
Yes
vlan
vid
ip pim lan-prune-delay
LAN delay enabled
No
Shows
Yes
if all multicast routers
on the current VLAN interface
enabled LAN-prune-delay.
Otherwise, shows
No
.
DR priority
1
ip pim-sparse dr-priority 0 -
4294967295
Showing a PIM-SM interface configured on VLAN 1
switch(config)# show ip pim interface 1
PIM Interface
VLAN : 1
IP Address : 10.1.10.1
Mode : sparse
Designated Router : 10.1.10.1
Hello Interval (sec) : 30
Hello Delay (sec) : 5
Override Interval (msec) : 2500 Lan Prune Delay : Yes
Propagation Delay (msec) : 500 Lan Delay Enabled : No
Neighbour Timeout : 180 DR Priority : 1
Displaying PIM neighbor data
These commands enable listings of either all PIM neighbors the router detects or the data for a specific PIM
neighbor.
Syntax:
show ip pim neighbor
Lists PIM neighbor information for all PIM neighbors connected to the router:
IP Address
Lists the IP address of a neighbor multicast router.
VLAN
Lists the VLAN through which the router connects to the indicated neighbor.
Up Time
Shows the elapsed time during which the neighbor has maintained a PIM route to the router.
Expire Time
Indicates how long before the router ages-out the current flow (group membership.) This value decrements
until:
• Reset by a state-refresh packet originating from the upstream multicast router. (The upstream multicast
router issues state-refresh packets for the current group as long as it either continues to receive traffic for
Chapter 4 PIM-SM (Sparse Mode)
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