380
SwitchB(config)# interface Vlan1
SwitchB(config-if-Vlan1)# ip address 10.1.1.2 255.255.255.0
SwitchB (config-if-Vlan1)exit
Initiate RIP protocol and configure the RIP segments
SwitchB(config)#router rip
SwitchB(config-router-rip)#network Vlan1
SwitchB(config-router-rip)#exit
c) SwitchC
Configure the IP address of Ethernet port E 0/0/2
SwitchC#config
SwitchC(config)# interface Vlan1
SwitchC(config-if-vlan1)# ip address 20.1.1.2 255.255.255.0
SwitchC (config-if-vlan1)#exit
Initiate RIP protocol and configure the RIP segments
SwitchC(config)#router rip
SwitchC(config-router)#network Vlan1
SwitchC(config-router)#exit
13.4.5 RIP Troubleshooting
The RIP protocol may not be working properly due to errors such as physical
connection, configuration error when configuring and using the RIP protocol. So users
should pay attention to following:
First ensure the physic connection is correct
Second, ensure the interface and chain protocol are UP (use show interface
command)
Then initiate the RIP protocol (use router rip command) and configure the segment
(use network command) and set RIP protocol parameter on corresponding interfaces,
such as the option between RIP-I and RIP-II
After that, one feature of RIP protocol should be noticed ---the Layer 3 switch
running RIP protocol sending route updating messages to all neighboring Layer 3
switches every 30 seconds. A Layer 3 switch is considered inaccessible if no route
updating messages from the switch is received within 180 seconds, then the route to
the switch will remains in the route table for 120 seconds before it is deleted. Therefore, if
to delete a RIP route, this route item is assured to be deleted from route table after 300
seconds.
When exchanging routing messages with CE using RIP protocol on the PE router,
we should first create corresponding VPN routing/transmitting examples to associate with