Configurable S,G Expiry Timers - Dell Force10 S4810P Configuration Manual

Figure 35-3. Viewing the PIM Multicast Routing Table
FTOS#show ip pim tib
PIM Multicast Routing Table
Flags: D - Dense, S - Sparse, C - Connected, L - Local, P - Pruned,
R - RP-bit set, F - Register flag, T - SPT-bit set, J - Join SPT,
Timers: Uptime/Expires
Interface state: Interface, next-Hop, State/Mode
(*, 192.1.2.1), uptime 00:29:36, expires 00:03:26, RP 10.87.2.6, flags: SCJ
Incoming interface: GigabitEthernet 4/12, RPF neighbor 10.87.3.5
Outgoing interface list:
GigabitEthernet 4/11
GigabitEthernet 7/13
(10.87.31.5, 192.1.2.1), uptime 00:01:24, expires 00:02:26, flags: FT
Incoming interface: GigabitEthernet 7/11, RPF neighbor 0.0.0.0
Outgoing interface list:
GigabitEthernet 4/11
GigabitEthernet 4/12
GigabitEthernet 7/13
--More--

Configurable S,G Expiry Timers

By default S, G entries expire in 210 seconds. You can configure a global expiry time (for all (S,G) entries)
or configure a expiry time for a particular entry. If both are configured, the ACL supercedes the global
configuration for the specified entries.
When an expiry time created, deleted, or updated, the changes are applied when the keep alive timer
refreshes.
To configure a global expiry time:
Task
Enable global expiry timer for S, G entries
Range 211-86400 seconds
Default: 210
Configure the expiry time for a particular (S,G) entry:
Step Task
1 Create an Extended ACL
2 Specify the source and group
to which the timer will be
applied using extended ACLs
with permit rules only.
Command Syntax
ip access-list extended access-list-name
[ seq sequence-number] permit ip
| any | host source-address}
source-address/mask
{destination-address/mask | any | host
destination-address}
Command
ip pim sparse-mode
sg-expiry-timer
seconds
PIM Sparse-Mode (PIM-SM) | 781
Command Mode
CONFIGURATION
Command Mode
CONFIGURATION
CONFIG-EXT-NACL