Building Network Automation Solutions
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Unequal-bandwidth EBGP load balancing

EIGRP was always described as the only routing protocol that can do unequal-cost load sharing. As it turns out, BGP is another one (although it's way more limited than EIGRP). For example, if you have two links into a neighbor AS, you can load-share across them proportionally to their bandwidth. You can find all the details, sample configurations and router printouts in the CT3 wiki.

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