Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Cisco1721 T1 load balancing and redundancy

I have 2 T1 line from 2 service provider connecting back to the same router.

Do I need to upgrade IOS software in order to do load balancing and redundancy between these 2 lines.Any good website for references on the configuration.

  • Other Network Infrastructure Subjects
1 REPLY
Bronze

Re: Cisco1721 T1 load balancing and redundancy

All IOS will automatically load balance over, up to 4, equal cost paths, but on a per session, rather than on a per packet, basis, so you may not get equal utilisation.

It is possible to force the router to load share on a per packet basis by disabling fast switching, 'no ip route-cache', on the interface, but this is NOT recommended as it will severely impact the router's performance.

168
Views
0
Helpful
1
Replies
This widget could not be displayed.