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Managing Out-Bound Internet Traffic Using BGP

We have a Cisco 7507, with IOS version 12.2(8)T5, running BGP with (2) DS3's and (1) OC3 port going to AT&T for our Internet. I have been able to manage the inbound traffic OK, but my out-bound traffic is equal between all (3) circuits. I am looking for a solution using BGP to be able to manage the out-bound as well. The DS3's out-bound traffic is maxed out on most days and I am not utilizing my bandwidth for the OC3 correctly.



Re: Managing Out-Bound Internet Traffic Using BGP

The out-bound or inbound traffic can be shared among multiple paths to a single remote AS as well as more than 2 remote AS. That is, Load sharing can be done in this case even though, BGP doesn't support Load balancing. A very good document with examples on this is given, the url of which is :

Sample Configurations for Load Sharing with BGP in Single and Multihomed Environments

Using a similar configuration given in this, you can configure such that, the outbound internet traffic is shared among all the 3 paths you have.

Hope this helps.

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