Reference Guide

608 | PIM Sparse-Mode (PIM-SM)
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Figure 28-4. Configuring an (S,G) Expiry Time
Display the expiry time configuration using the show running-configuration [acl | pim] command from
EXEC Privilege mode.
Configure a Static Rendezvous Point
The rendezvous point is a PIM-enabled interface on a router that acts as the root a group-specific tree;
every group must have an RP.
Identify an RP by the IP address of a PIM-enabled or loopback interface using the command
ip pim
rp-address
, as shown in Figure 28-5.
Figure 28-5. Electing a Rendezvous Point
3 Set the expiry time for a
specific (S,G) entry
(
Figure 28-4).
Range 211-86400 seconds
Default: 210
ip pim sparse-mode sg-expiry-timer seconds
sg-list access-list-name
CONFIGURATION
Note: The expiry time configuration is nullified, and the default global expiry time is used if:
• an ACL is specified for an in the ip pim sparse-mode sg-expiry-timer command, but the ACL has not been
created or is a standard ACL.
• if the expiry time is specified for an (S,G) entry in a deny rule.
Step Task Command Syntax Command Mode
FTOS(conf)#ip access-list extended SGtimer
FTOS(config-ext-nacl)#permit ip 10.1.2.3/24 225.1.1.0/24
FTOS(config-ext-nacl)#permit ip any 232.1.1.0/24
FTOS(config-ext-nacl)#permit ip 100.1.1.0/16 any
FTOS(config-ext-nacl)#show conf
!
ip access-list extended SGtimer
seq 5 permit ip 10.1.2.0/24 225.1.1.0/24
seq 10 permit ip any 232.1.1.0/24
seq 15 permit ip 100.1.0.0/16 any
FTOS(config-ext-nacl)#exit
FTOS(conf)#ip pim sparse-mode sg-expiry-timer 1800 sg-list SGtimer
FTOS#sh run int loop0
!
interface Loopback 0
ip address 1.1.1.1/32
ip pim sparse-mode
no shutdown
FTOS#sh run pim
!
ip pim rp-address 1.1.1.1 group-address 224.0.0.0/4