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Multiple Cisco router connections to Internet ISP (full BGP table)

itninja2010
Level 1
Level 1

I have two Cisco routers each with its own connection to an ISP.  I am receiving full internet BGP tables on both routers.  The problem I am facing is one router is receiving all of the inbound Internet traffic and the other router is not receiving inbound Internet traffic from the ISP.  Outbound traffic seems to be load balancing.  Any ideas on how to load balance the inbound Internet traffic from my two ISP connections?  Thanks.

1 Reply 1

Collin Clark
VIP Alumni
VIP Alumni

Inbound load balancing is not 100%, it's not even 25% achievable. BGP was not designed to be load balanced. I would take a read on BGP to understand how one end gets to another. That should shed some light on why it's difficult to load balance. What you are seeing is normal BTW. There are ways to slightly load balance but you'll never see true load balancing.