Hi Chris, The conversation is about "slow router" in transit position.
/Louis -----Original Message----- From: Christian Hopps <cho...@chopps.org> Sent: Friday, April 21, 2023 5:08 AM To: Louis Chan <lou...@juniper.net> Cc: Les Ginsberg (ginsberg) <ginsb...@cisco.com>; Liyan Gong <gongli...@chinamobile.com>; Christian Hopps <cho...@chopps.org>; Ketan Talaulikar <ketant.i...@gmail.com>; Krzysztof Szarkowicz <kszarkow...@juniper.net>; Robert Raszuk <rob...@raszuk.net>; linchangwang <linchangwang.04...@h3c.com>; AceeLindem <acee.i...@gmail.com>; 程伟强 <chengweiqi...@chinamobile.com>; lsr@ietf.org; Peter Psenak (ppsenak) <ppse...@cisco.com> Subject: Re: [Lsr] IETF-116 LSR - IGP extensions forAdvertisingOffsetforFlex-Algorithm [External Email. Be cautious of content] Louis Chan <lou...@juniper.net> writes: > Hi All, > > Here is an email I would like to address multiple comments and issues. > > My comment starts with [lc] > > /Louis > > 1. About the weakest control plane > >>>> From Chris. H > > Operators with 1000s of routers and routers with 1000s of interfaces > don't create flooding choke-points, and especially don't then drop > crappy routers in said choke-points. We should not modify our routing > protocols to support such poor network design. > > <<< > > > > [lc] For a network of 1000+ routers, it is usually NOT a greenfield > deployment. It is likely a brownfield deployment. > > There are reasons that these older generations of routers could not be > replaced easily. One common problem is the legacy interface support, > and the port density of such low speed interfaces. I did not say that operators have no slow/crappy routers. > Have you heard that some operators still ask for 1G/10G support in new > core router? > > Therefore, it requires some method to let these "weaker" control > planes to co-exist, plus rather predictable network stability. I'll > show you how it can be achieved. No it doesn't, since slow routers on the network edge work just fine w/o affecting overall stability or flooding speed of the core. Thanks, Chris. [as wg-member] > [/lc] Juniper Business Use Only _______________________________________________ Lsr mailing list Lsr@ietf.org https://www.ietf.org/mailman/listinfo/lsr
