3Com Switch 8800 Advanced Software V5 Configuration Guide

Optimizing the RIP Network 279
Optimizing the RIP
Network
This section covers the following topics:
■ “Configuring RIP Timers” on page 279
■ “Configuring the Split Horizon and Poison Reverse” on page 279
■ “Configuring the Maximum Number of Load Balanced Routes” on page 280
■ “Configuring RIP Message Check” on page 280
■ “Configuring RIP-2 Message Authentication” on page 281
■ “Configuring a RIP Neighbor” on page 281
■ “Configuring TRIP” on page 282
■ “Configuring RIP-to-MIB Binding” on page 282
Finish the following tasks before configuring the RIP network optimization.
■ Configure network addresses on interfaces, and make sure neighboring nodes
are reachable
■ Configure basic RIP functions.
Configuring RIP Timers Follow these steps to configure RIP timers:
n
Based on the network performance, you should make RIP timers of RIP routers
identical to each other to avoid unnecessary traffic or route oscillation.
Configuring the Split
Horizon and Poison
Reverse
Configure split horizon
The split horizon function disables an interface from sending routes received by
the interface itself, so as to prevent routing loops between adjacent routers.
Follow these steps to configure the split horizon function:
Configure a default
metric for redistributed
routes
default-cost value Optional
The default metric is
applied if no metric is
specified when
redistributing routes.
Redistribute routes from
another protocol
import-route protocol [ process-id ] [
allow-ibgp ] [ cost cost |
route-policy route-policy-name | tag
tag ] *
Required
To do... Use the command... Remarks
To do... Use the command... Remarks
Enter system view system-view --
Enter RIP view rip [ process-id ] [ vpn-instance
vpn-instance-name ]
--
Configure values for
RIP timers
timers { garbage-collect
garbage-collect-value | suppress
suppress-value | timeout
timeout-value | update update-value
}*
Optional
By default, 30s for update
timer, 180s for timeout timer,
120s for suppress timer, and
120s for garbage-collect timer