nanog mailing list archives
Re: HE.net BGP origin attribute rewriting
From: Daniel Suchy <danny () danysek cz>
Date: Fri, 01 Jun 2012 20:03:50 +0200
On 06/01/2012 07:38 PM, Joe Provo wrote:
You clearly did not read the previous posts involving actual historical evidence [and apparently ongoing] of remote networks attempting action at a distance knowing that many overlook this part of the decision tree. Preventing your company from bleeding money or degrading performance at whim of remote parties certainly is "cool" but also just good business and proper network hygiene.
By overwriting origin field, there's no warranty that someone improves performance at all - it's just imagination. In extreme cases, performance can be degraded when someone in the middle plays with origin field and doesn't know reasons, why originating network uses something else than IGP origin. In RFC 2119 words, full implications were not understanded - when this overwriting is done generally. Also, there must be some historical reason, why origin should not be rewritten (this changed in January 2006). For internal reasons within the network operator still haves enough knobs to enforce own policy (by setting localpref, med on his network). Daniel
Current thread:
- Re: HE.net BGP origin attribute rewriting Daniel Suchy (Jun 01)
- Re: HE.net BGP origin attribute rewriting Saku Ytti (Jun 01)
- Accuracy of RFCs (was: Re: HE.net BGP origin attribute rewriting) John Curran (Jun 01)
- Re: HE.net BGP origin attribute rewriting Joe Provo (Jun 01)
- Re: HE.net BGP origin attribute rewriting Daniel Suchy (Jun 01)
- Re: HE.net BGP origin attribute rewriting Richard A Steenbergen (Jun 01)
- Re: HE.net BGP origin attribute rewriting Daniel Suchy (Jun 02)
- Re: HE.net BGP origin attribute rewriting Joe Provo (Jun 01)
- Re: HE.net BGP origin attribute rewriting Daniel Suchy (Jun 02)
- Re: HE.net BGP origin attribute rewriting Joe Provo (Jun 02)
- Re: HE.net BGP origin attribute rewriting Daniel Suchy (Jun 02)
- Re: HE.net BGP origin attribute rewriting Daniel Suchy (Jun 01)
- Re: HE.net BGP origin attribute rewriting Saku Ytti (Jun 01)