BGP - Load Balance or Load Sharing

[Claudio A.]

Hi All,

I need a help to define the best way to configure one new router in our customer.

The scenario is: provide a ISR4331 with IOS SL-4330-IPB-K9 to connect at two ISP (different companies) with BGP protocol. My question is: Can we configure a load balance feature with two different ISPs and different AS prefixes? or Load Sharing?

Regards

Claudio Arriagada

[Reza Sharifi · Accepted solution]

Hi,

You can load share between the 2 ISPs.

Have a look at this document for drwaing and config examples:

https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13762-40.html#anc22

HTH

[Joseph W. Doherty · Accepted solution]

Yes, but to do so with different ASs you need to use a secret/hidden command, bgp bestpath as-path multipath-relax.