nanog mailing list archives
Re: The ORIGIN option on BGP - what is it for?
From: Sabri Berisha <sabri () cluecentral net>
Date: Fri, 21 Oct 2005 14:37:30 +0200
On Thu, Oct 20, 2005 at 10:34:35PM -0700, Peter Boothe wrote:
So my question is: What do people use ORIGIN: EGP vs ORIGIN: IGP to distinguish? What makes a route EGP vs. IGP to you?
Origin is a mandatory transitive attribute which is being used in the BGP decision algorithm. If you have a prefix with the same localpref and aspath-length, the decision will be made based on the lowest origin-value. IGP wins over EGP, EGP wins over incomplete. You might use it to influence your inbound traffic. -- Sabri please do not throw salami pizza away
Current thread:
- The ORIGIN option on BGP - what is it for? Peter Boothe (Oct 20)
- Re: The ORIGIN option on BGP - what is it for? Deepak Jain (Oct 20)
- Re: The ORIGIN option on BGP - what is it for? Sabri Berisha (Oct 21)
- Re: The ORIGIN option on BGP - what is it for? Patrick W. Gilmore (Oct 21)