BGP Load Balancing

[mautez_mah]

Hi 
MY AS connected to two ISPs 
If I need to do load balancing to other sites ( per destination not per subnet ) 
I think about adding Max-path for outbound traffic, for inbound if I use a community to inform both ISPs will it work, ?
I read the article by cisco but it is all about balancing per Subnet, but I am talking about per destination,
anyone has any idea about it 

[Joseph W. Doherty]

I recall (?) PfR would do per-flow/destination (dynamic) load balancing on top of BGP.

[Georg Pauwen]

Hello,

what does your topology look like, that is, how many routers do you have in your AS ? is this a single, multihomed router, or do you have multiple, local routers ?

[mautez_mah]

@Georg Pauwen 
I have two cases,
first one: one router to two different ISP 
second one: two routers to two different ISP 

[Georg Pauwen]

Hello,

in both cases, you can only do load sharing, not load balancing. Have a look at the configuration examples below:

Load Sharing When Multihomed to Two ISPs Through a Single Local Router

https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13762-40.html#anc21

Load Sharing When Multihomed to Two ISPs Through Multiple Local Routers

https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13762-40.html#anc26