nanog mailing list archives
RE: AT&T NYC
From: "Feger, James" <jfeger () feger net>
Date: Tue, 3 Sep 2002 11:22:40 -0500 (CDT)
You keep referring to the problem of OSPF causing the outage for AT&T and unaffected customers. The AT&T released RFO simply states that OSPF network statements were removed. That can happen just as easy with static routes and BGP network/neighbor statements. OSPF did what it was instructed to do, just as BGP would have done if it were told to drop neighbors, or networks. -jf On Tue, 3 Sep 2002 alex () yuriev com wrote:
Since when is BGP a bug-free protocol? Let's not forget the BGP best path selection algorithm itself is broken (there are circumstances under which it will NEVER converge on a best path see ietf draft on IDR route oscillation). Not to mention the various malformed AS-Path bugs which have shown up over the years. I took a vendor class once where they made us do a lab where we had to run BGP w/o an IGP, in a later revision of the class they removed that lab because they decided it was too much of a nightmare even for a lab environment.BGP is not a bug-free protocol. BGP is the easiest protocol to *debug* when the problem shows up. BGP does not help to accidently affect *unaffected* paths when a problem shows up. It looks like everyone forgot the reason for this discussion to begin with. It is the outage caused by a mistake on a single router that affected parts of the network that were *NOT* affected by the original mess. Please not that this discussion tends to get restarted whenever we have a real OSPF (or ISIS) caused mess. Alex
Current thread:
- Re: AT&T NYC, (continued)
- Re: AT&T NYC Stephen J. Wilcox (Sep 03)
- Re: AT&T NYC alex (Sep 03)
- Re: AT&T NYC Iljitsch van Beijnum (Sep 03)
- Re: AT&T NYC Richard A Steenbergen (Sep 03)
- Re: AT&T NYC alex (Sep 02)
- Re: AT&T NYC Stephen J. Wilcox (Sep 02)
- Re: AT&T NYC Petri Helenius (Sep 02)
- Re: AT&T NYC alex (Sep 02)
- RE: AT&T NYC Frank Scalzo (Sep 03)
- RE: AT&T NYC alex (Sep 03)
- RE: AT&T NYC Feger, James (Sep 03)
- RE: AT&T NYC alex (Sep 03)
- Re: AT&T NYC bdragon (Sep 03)
- Re: AT&T NYC alex (Sep 03)
- RE: AT&T NYC alex (Sep 03)
- RE: AT&T NYC alex (Sep 04)