nanog mailing list archives
RE: Layer 2 vs. Layer 3 to TOR
From: Raj Singh <raj.singh () demandmedia com>
Date: Thu, 12 Nov 2009 12:04:06 -0800
We are actually looking at going Layer 3 all the way to the top of rack and make each rack its own /24. This provides us flexibility when doing maintenance (spanning-tree). Also, troubleshooting during outages is much easier by using common tools like ping and trace routes. I want to make sure this is something other people are doing out there and want to know if anyone ran into any issues with this setup. Thanks, Raj Singh | Director Network Engineering _________________________________ Demand Media | eNom, Inc. Direct: 425.974.4679 15801 NE 24th St. Bellevue, WA 98008 Raj.Singh () DemandMedia com -----Original Message----- From: Paul Stewart [mailto:pstewart () nexicomgroup net] Sent: Thursday, November 12, 2009 11:53 AM To: Raj Singh; nanog () nanog org Subject: RE: Layer 2 vs. Layer 3 to TOR We are heading towards that type of deployment beginning next year with Juniper EX4200 switches in a redundant configuration. This will be pure Layer2 in nature on the switches and they will "uplink" to Juniper M10i's for layer3... the power savings, space savings etc over traditional Cisco 6500 chassis (plus all the cabling between cabinets which is in our case a nightmare) made this a pretty easy choice... and price too..;) Somewhere on Juniper's website in the product info section they have deployment whitepapers on this kind of stuff if that's of interest.... Hope this helps.. Paul -----Original Message----- From: Raj Singh [mailto:raj.singh () demandmedia com] Sent: November-12-09 2:49 PM To: 'nanog () nanog org' Subject: Layer 2 vs. Layer 3 to TOR Guys, I am wondering how many of you are doing layer 3 to top of rack switches and what the pros and cons are. Also, if you are doing layer 3 to top of rack do you guys have any links to published white papers on it? Thanks, Raj Singh ---------------------------------------------------------------------------- "The information transmitted is intended only for the person or entity to which it is addressed and contains confidential and/or privileged material. If you received this in error, please contact the sender immediately and then destroy this transmission, including all attachments, without copying, distributing or disclosing same. Thank you."
Current thread:
- Layer 2 vs. Layer 3 to TOR Raj Singh (Nov 12)
- RE: Layer 2 vs. Layer 3 to TOR Paul Stewart (Nov 12)
- RE: Layer 2 vs. Layer 3 to TOR Raj Singh (Nov 12)
- Re: Layer 2 vs. Layer 3 to TOR Malte von dem Hagen (Nov 12)
- RE: Layer 2 vs. Layer 3 to TOR George Bonser (Nov 12)
- Re: Layer 2 vs. Layer 3 to TOR David Coulson (Nov 12)
- RE: Layer 2 vs. Layer 3 to TOR Raj Singh (Nov 12)
- RE: Layer 2 vs. Layer 3 to TOR Paul Stewart (Nov 12)
- Re: Layer 2 vs. Layer 3 to TOR Steve Feldman (Nov 12)
- Re: Layer 2 vs. Layer 3 to TOR Seth Mattinen (Nov 12)
- Re: Layer 2 vs. Layer 3 to TOR Brandon Ewing (Nov 12)
- RE: Layer 2 vs. Layer 3 to TOR Bulger, Tim (Nov 12)
- Re: Layer 2 vs. Layer 3 to TOR Brandon Galbraith (Nov 12)
- Re: Layer 2 vs. Layer 3 to TOR Nick Hilliard (Nov 12)
- Re: Layer 2 vs. Layer 3 to TOR Kinkie (Nov 18)
- Re: Layer 2 vs. Layer 3 to TOR Seth Mattinen (Nov 12)