Configuration Guide User guide

1584 FastIron Configuration Guide
53-1002494-02
DVMRP configuration on the Layer 3 switch and interface
• Default route
Modifying neighbor timeout
The neighbor timeout specifies the period of time that a router will wait before it defines an
attached DVMRP neighbor router as down. Possible values are 40 – 8000 seconds. The default
value is 180 seconds.
To modify the neighbor timeout value to 100, enter the nbr <num> command.
Brocade(config-dvmrp-router)#nbr 100
Syntax: nbr-timeout <40-8000>
The default is 180 seconds.
Modifying Route Expires Time
The Route Expire Time defines how long a route is considered valid in the absence of the next route
update. Possible values are from 20 – 4000 seconds. The default value is 200 seconds.
To modify the route expire setting to 50, enter the route-expire-timeout <num> command.
Brocade(config-dvmrp-router)#route-expire-timeout 50
Syntax: route-expire-timeout <20-4000>
Modifying Route Discard Time
The Route Discard Time defines the period of time before a route is deleted. Possible values are
from 40 – 8000 seconds. The default value is 340 seconds.
To modify the route discard setting to 150, enter the route-discard-timeout <num> command.
Brocade(config-dvmrp-router)#route-discard-timeout 150
Syntax: route-discard-timeout <40-8000>
Modifying Prune Age
The Prune Age defines how long a prune state will remain in effect for a source-routed multicast
tree. After the prune age period expires, flooding will resume. Possible values are from 20 – 3600
seconds. The default value is 180 seconds.
To modify the prune age setting to 150, enter the prune <num> command.
Brocade(config-dvmrp-router)#prune 25
Syntax: prune-age <20-3600>
Modifying Graft Retransmit Time
The Graft Retransmit Time defines the initial period of time that a router sending a graft message
will wait for a graft acknowledgement from an upstream router before re-transmitting that
message.
Subsequent retransmissions are sent at an interval twice that of the preceding interval. Possible
values are from
5 – 3600 seconds. The default value is 10 seconds.