Search this Blog

Saturday, December 14, 2013

What is the difference between next-hop-self and ebgp-multihop ?


In order to make the iBGP neighbor can direct to right next hop when an update message comes from an eBGP neighbor, we should configure a cmd: neighbor x.x.x.x next-hop-self which can change the original next hop. but i found another cmd "neighbor x.x.x.x multihop x "can reach the goal as well. what is the difference between them? and how to conclude a accurate x .

The ebgp-multihop feature doesn't change the next-hop it is used when doing eBGP peering between 2  external peer addresses that are not directly connected.By doing this we change the outgoing TTL for eBGP from 1 to x or by default if we don't specify anything to 255.

Citation - This blog post does not reflect original content from the author. Rather it summarizes content that are relevant to the topic from different sources in the web. The sources might include any online discussion boards, forums, websites and others.

No comments :

Post a Comment

 
/* Google Analytics begin ----------------------------------------------- */ /* Google Analytics end ----------------------------------------------- */