Re: [c-nsp] EIGRP reality check

2013-11-27 Thread Adam Vitkovsky
Eigrp default metric = 256*(1000/path-minBW + sum(delays/10)) BW is in Kbps -so the formula does work for up to 10G links However when comparing 10G an 1G int on me3600 I see following delay sh int g0/2 .. DLY 10 usec, sh int te0/1 .. DLY 1000 usec Say what? Hahaha :) Do your interfaces

Re: [c-nsp] EIGRP reality check

2013-11-26 Thread Mark Tinka
On Monday, November 25, 2013 04:55:08 AM Jeff Kell wrote: We have been using EIGRP in the most recent generation of our campus network, a choice that was largely made on the fact that it could load-share across equal-cost paths, and take the path of least resistance to the target. I'm

Re: [c-nsp] EIGRP reality check

2013-11-26 Thread Jeff Kell
Actually, I would have entertained equal cost even without the unequal variance options, but the latter would be even better. To answer some other questions others have asked... back to the original diagram... +--A-\ | | \ | B---D | | / +--C-/ These are layer-2 paths. We have a rather

Re: [c-nsp] EIGRP reality check

2013-11-26 Thread Mark Tinka
On Wednesday, November 27, 2013 05:21:45 AM Jeff Kell wrote: These are all Catalysts (6500 at A, various 3750 models at B-C-D) so nothing new and bleeding edge here. I'll admit my EIGRP skills here suck a little; well, a lot, sorry :-). Maybe Gert or other Cisco EIGRP experts lurking can

Re: [c-nsp] EIGRP reality check

2013-11-25 Thread Gert Doering
Hi, On Sun, Nov 24, 2013 at 09:55:08PM -0500, Jeff Kell wrote: From B to D there are three routes... direct to D (10G), via A to D (10G), and via C to D (gig channel). And vice versa. EIGRP shows the three paths as equal weight (Catalyst 3750s and 6500s on current code) despite the

[c-nsp] EIGRP reality check

2013-11-24 Thread Jeff Kell
We have been using EIGRP in the most recent generation of our campus network, a choice that was largely made on the fact that it could load-share across equal-cost paths, and take the path of least resistance to the target. Recently we upgraded some core links to 10Gbps, with a couple remaining