H3C S7500 Series Ethernet Switches Operation Manual

Operation Manual – Routing Protocol
H3C S7500 Series Ethernet Switches Chapter 3 RIP Configuration
3-9
To do... Use the command... Remarks
Set the default cost for
RIP to redistribute routes
from other protocols
default cost value
Optional
When you use the
import-route command
without specifying the cost
of imported routes, the
default cost you set here
will be used.
Configure RIP to
redistribute routes from
another protocol
import-route protocol
[ process-id | allow-ibgp ]
[ cost value |
route-policy
route-policy-name ]*
Optional
 Note:
Use the keyword allow-ibgp with care when redistributing routes from BGP, because
it redistributes IBGP routes without keeping the AS_PATH attribute, which may lead
to routing loops between ASs.
3.5 RIP Network Adjustment and Optimization
In some special network environments, some RIP features need to be configured and
RIP network performance needs to be adjusted and optimized. By performing the
configuration mentioned in this section, the following can be implemented:
z Changing the convergence speed of RIP network by adjusting RIP timers
z Avoiding routing loop by configuring split horizon
z Packet validation in network environments with high security requirements
z Configuring RIP feature on an interface or link with special requirements
3.5.1 Configuration Prerequisites
Before adjusting RIP, perform the following tasks:
z Configuring IP address on each interface, and make sure that all adjacent nodes
are reachable with each other
z Configuring basic RIP functions
3.5.2 Configuration Tasks
I. Configure RIP timers
Follow these steps to configure RIP timers: