nanog mailing list archives
Re: endpoint liveness (RE: Do ATM-based Exchange Points make sense an ymore?)
From: Vadim Antonov <avg () exigengroup com>
Date: Sat, 10 Aug 2002 02:13:33 -0700 (PDT)
It makes little sense to detect transient glitches. Any possible reaction on those glitches (i.e. withdrawal of exterior routes with subsequent reinstatement) is more damaging than the glitches themselves. --vadim On Fri, 9 Aug 2002, Lane Patterson wrote:
BGP keepalive/hold timers are configurable even down to granularity of link or PVC level keepalives, but for session stability reasons, it appears that most ISPs at GigE exchanges choose not to tweak them down from the defaults. IIRC, Juniper is 30/90 and Cisco is 60/180. My gut feel was that even something like 10/30 would be reasonable, but nobody seems compelled that this is much of an issue. Cheers, -Lane -----Original Message----- From: Petri Helenius [mailto:pete () he iki fi] Sent: Friday, August 09, 2002 3:07 PM To: Mikael Abrahamsson; nanog () merit edu Subject: Re: Do ATM-based Exchange Points make sense anymore?What functionality does PVC give you that the ethernet VLAN does not?Thatâ•¢s quite easy. Endpoint liveness. A IPv4 host on a VLAN has no idea if the guy on the "other end" died until the BGP timer expires. FR has LMI, ATM has OAM. (and ILMI) Pete
Current thread:
- endpoint liveness (RE: Do ATM-based Exchange Points make sense an ymore?) Lane Patterson (Aug 09)
- Re: endpoint liveness (RE: Do ATM-based Exchange Points make sense an ymore?) Vadim Antonov (Aug 10)
- Re: endpoint liveness (RE: Do ATM-based Exchange Points make sense an ymore?) Stephen Sprunk (Aug 12)
- Re: endpoint liveness (RE: Do ATM-based Exchange Points make sense an ymore?) Mike Hughes (Aug 10)
- Re: endpoint liveness (RE: Do ATM-based Exchange Points make sensean ymore?) Petri Helenius (Aug 10)
- Re: endpoint liveness (RE: Do ATM-based Exchange Points make sense an ymore?) Jesper Skriver (Aug 11)
- Re: endpoint liveness (RE: Do ATM-based Exchange Points make sense an ymore?) Petri Helenius (Aug 11)
- Re: endpoint liveness (RE: Do ATM-based Exchange Points make sense an ymore?) Vadim Antonov (Aug 10)