cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
298
Views
0
Helpful
1
Replies

Configuring ethernet link as backup to serial link

rajesh1331
Level 1
Level 1

Hi

I have two 2 MB Link terminated to my router of which one is serial and other is an Ethernet termination. How can i configure the Ethernet link to act as a backup to serial(no load balancing required).

Presently i have added both the interface in ospf. Since the Ethernet Interface bandwidth is 100Mbps, the route is being taken in Ethernet and serial is been taken as backup. I have intermediate packet drops also.However there is no packet drop when i use the link individually.

Can i configure the interface as a standby in some way?

1 Reply 1

Giuseppe Larosa
Hall of Fame
Hall of Fame

Hello Rajesh,

if you are using OSPF and you want to have the serial link preferred

int fas0/0

ip ospf cost 100

note: you need to do this on both sides of the ethernet link.

after this the serial link should be the primary link for its lower cost.

Hope to help

Giuseppe

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: