Configuration Guide User guide

1204 FastIron Configuration Guide
53-1002494-01
RIP parameter configuration
The software adds the offset value to the routing metric (cost) of the routes that match the ACL. If
a route matches both a global offset list and an interface-based offset list, the interface-based
offset list takes precedence. The interface-based offset list metric is added to the route in this
case.
You can configure up to 24 global RIP offset lists and up to 24 RIP offset lists on each interface.
To configure a global RIP offset list, enter commands such as the following.
Brocade(config)#access-list 21 deny 160.1.0.0 0.0.255.255
Brocade(config)#access-list 21 permit any
Brocade(config)#router rip
Brocade(config-rip-router)#offset-list 21 out 10
The commands in this example configure a standard ACL. The ACL matches on all IP networks
except 160.1.x.x. When the Layer 3 Switch advertises a route that matches ACL 21, the offset list
adds 10 to the route metric.
Syntax: [no] offset-list <ACL-number-or-name> in | out <metric> [ethernet <port>]
Specify the port variable in one of the following formats:
• FWS, FCX, and ICX stackable switches – stack-unit/slotnum/portnum
• FSX 800 and FSX 1600 chassis devices – slotnum/portnum
• ICX devices – slotnum/portnum
• FESX compact switches – portnum
In the following example, the Layer 3 Switch uses ACL 21 to add 10 to the metric of routes received
on Ethernet port 0/2/1.
Brocade(config-rip-router)#offset-list 21 in 10 ethernet 0/2/1
Changing the administrative distance
By default, the Layer 3 Switch assigns the default RIP administrative distance (120) to RIP routes.
When comparing routes based on administrative distance, the Layer 3 Switch selects the route with
the lower distance. You can change the administrative distance for RIP routes.
NOTE
Refer to “Changing administrative distances” on page 1374 for the default distances for all route
sources.
To change the administrative distance for RIP routes, enter the distance command.
Brocade(config-rip-router)#distance 140
This command changes the administrative distance to 140 for all RIP routes.
Syntax: [no] distance <num>
The <num> variable specifies a range from 1 through 255.