BGP soft/hard peer reset

Question 1

What is a BGP soft reset?

Answer 1

A BGP soft reset is a method to refresh BGP routing information without tearing down the BGP session with a neighbor.

clear ip bgp 192.168.1.1 soft

Question 2

What is a BGP hard reset?

Answer 2

A BGP hard reset forces BGP to restart. involves tearing down the TCP session.

This process disrupts the network and is considered a last resort if a soft reset fails.

clear ip bgp “Neighbor-IP”

Question 3

How does a BGP soft reset work?

Answer 3

A BGP soft reset works by sending a route-refresh request to a BGP neighbor, which causes the neighbor to resend all its routing updates.

Question 4

How do I perform a BGP soft reset?

Answer 4

clear ip bgp “Neighbor-IP” soft

Question 5

What are some considerations when performing a BGP soft/hard reset?

Answer 5

• Which neighbors to reset.
• Whether to use a soft or hard reset.
• How to minimize disruption to the network.