----- Original Message Follows ----- From: "Stephen Sprunk" <stephen@sprunk.org> To: "Patrick W. Gilmore" <patrick@ianai.net> Cc: "North American Noise and Off-topic Gripes" <nanog@merit.edu> Subject: Re: Transit LAN vs. Individual LANs Date: Sat, 25 Feb 2006 13:56:37 -0600

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On Feb 24, 2006, at 9:03 PM, Scott Weeks wrote:

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I have 2 core routers (CR) and 3 access routers (AR) currently connected point-to-point where each AR connects to >> each CR for a total of 6 ckts. Now someone has decided to >> connect them with Gig-E. I was wondering about the benefits >> or disadvantages of keeping the ckts each in their own >> individual LANs or tying them all into one VLAN for a >> "Transit LAN" as

Thus spake "Patrick W. Gilmore" <patrick@ianai.net> those folks that decided on going to Gig-E >> aren't doing any logical network architecting (is that a >> real word?). >

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Personally, I like the to KISS, so one big 'transit LAN'.

ITYM two big transit LANs -- one must be prepared for a switch to fail.

These're going to be router-to-router connections (each AR is connected to both CRs) and I had thought about tying them all into one VLAN vs. PTP Gig-E. I was just trying to find out the operational benefits of either design. scott