nanog mailing list archives
Re: Brocade SLX Internet Edge
From: Adam Rothschild <asr () latency net>
Date: Fri, 2 Nov 2018 22:39:42 -0400
I have no horse in this race, however one need only look at the NYIIX outages list to see how well the Brocade/Extreme SLX platform works on at-scale service provider networks... On Thu, Nov 1, 2018 at 2:55 PM Blake Hudson <blake () ispn net> wrote:
Chris Welti wrote on 11/1/2018 10:03 AM:Nicolas Fevrier has a very detailed blog post on how Cisco handles the prefixes on their Broadcom Jericho based NCS 5500 gear. https://xrdocs.io/cloud-scale-networking/tutorials/2017-08-03-understanding-ncs5500-resources-s01e02/ I'm pretty sure the principle is more or less the same for the Jericho based platforms on Arista and Extreme. Best regards, ChrisI love the nitty gritty detail in this author's post and I'm glad he concludes by stating clearly that while the base card (spec sheet says: "On-chip tables for 256K IPv4 or 64K IPv6 routes" and "On-chip tables for 786K IPv4 host routes, MAC, and labels") can actually hold a full BGP table today when configured appropriately, Cisco still recommends the scale cards for that application (spec sheet says: "FIB scale up 2M IPv4 or 512K IPv6 routes" and "On-chip tables for 786K IPv4 host routes, MAC, and labels"). I do have to wonder about the internal expansion of each /23 route into two /24 routes in their FIB algorithm, as I would have thought Cisco would have attempted to go the opposite way, but I'm sure Cisco has their reasons.
Current thread:
- Re: Brocade SLX Internet Edge Jörg Kost (Nov 01)
- <Possible follow-ups>
- RE: Brocade SLX Internet Edge Kevin Burke (Nov 01)
- Re: Brocade SLX Internet Edge Colton Conor (Nov 01)
- Re: Brocade SLX Internet Edge Saku Ytti (Nov 01)
- Re: Brocade SLX Internet Edge Chris Welti (Nov 01)
- Re: Brocade SLX Internet Edge Blake Hudson (Nov 01)
- Re: Brocade SLX Internet Edge Adam Rothschild (Nov 02)
- Re: Brocade SLX Internet Edge Colton Conor (Nov 01)