Brocade TurboIron 24X Series Configuration Guide - Manual (Page 839)

Brocade TurboIron 24X Series Configuration Guide 805
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PIM Dense
A prune wait value of zero causes the PIM router to stop traffic immediately upon receiving a prune
message. If there are two or more neighbors on the physical port, then the prune-wait command
should not be used because one neighbor may send a prune message while the other sends a join
message at the during time or in less than three seconds.
To set the prune wait time to zero, enter the following commands.
TurboIron(config)#router pim
TurboIron(config-pim-router)#prune-wait 0
Syntax: prune-wait
where can be 0 - 3 seconds. A value of 0 causes the PIM router to stop traffic immediately
upon receiving a prune message. The default is 3 seconds.
Viewing the prune wait time
To view the prune wait time, enter the show ip pim dense command at any level of the CLI.
Modifying graft retransmit timer
The Graft Retransmit Timer defines the interval between the transmission of graft messages.
A graft message is sent by a router to cancel a prune state. When a router receives a graft
message, the router responds with a Graft Ack (acknowledge) message. If this Graft Ack message
is lost, the router that sent the graft message will resend it.
To change the graft retransmit timer from the default of 180 to 90 seconds, enter the following.
TurboIron(config)#router pim
TurboIron(config-pim-router)#graft-retransmit-timer 10
Syntax: graft-retransmit-timer <2 -10>
The default is 3 seconds.
Modifying inactivity timer
The router deletes a forwarding entry if the entry is not used to send multicast packets. The PIM
inactivity timer defines how long a forwarding entry can remain unused before the router deletes it.
To apply a PIM inactivity timer of 90 seconds to all PIM interfaces, enter the following.
TurboIron(config)#router pim
TurboIron(config-pim-router)#inactivity-timer 90
Syntax: inactivity-timer <10-3600>
The default is 180 seconds.
TurboIron#show ip pim dense
Global PIM Dense Mode Settings
Hello interval: 60, Neighbor timeout: 180
Graft Retransmit interval: 10, Inactivity interval: 180
Route Expire interval: 200, Route Discard interval: 340
Prune age: 180, Prune wait: 3