Saturday, January 13, 2018

BGP Load Sharing

We have a plan currently to do BGP peering with two ISPs for our new /24 block.

I've set up peering for the first already working well, and the second one will be complete soon.

My question is as follows:

Most of our customers are on ISP1 which means that they will come in over ISP1's advertised route - leading to most of our traffic coming in over this line.

What I do not know is if I can even this out by using AS-Path prepend on this line to make more traffic select ISP2 as the better route or if I'm simply going to shift my majority load to ISP2.

Thoughts? BGP is a new world to me so feedback is appreciated.



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