Comments on: Weekly Open Ended Question #1

By: Weekly Open Ended Question #2 | AlwaysTheNetwork

Weekly Open Ended Question #2 | AlwaysTheNetwork — Thu, 18 Feb 2010 13:08:51 +0000

[...] The first question was pretty popular, and was answered quickly in the comments. The answer to Last week’s question has been added to the post. Second [...]

By: Colby

Colby — Wed, 17 Feb 2010 16:53:57 +0000

Thanks guys! Obviously you were all correct. I’ve updated the post with the answer.

By: Jared

Jared — Thu, 11 Feb 2010 21:32:45 +0000

I forgot to mention that this weekly OEQ question idea is awesome Colby!

By: Daniel

Daniel — Thu, 11 Feb 2010 20:37:58 +0000

it makes the network more “fun” if you don’t

By: ZeroZeroFourteen

ZeroZeroFourteen — Thu, 11 Feb 2010 19:46:50 +0000

Do not forget that when you use the auto cost reference bandwidth command you must issue the command on all routers in the area.

By: Jared

Jared — Thu, 11 Feb 2010 18:59:15 +0000

Haha, I’m rarely accused of that myself

By: Daniel

Daniel — Thu, 11 Feb 2010 18:25:43 +0000

thanks Jared
no one has ever accused me of presenting my information clearly

By: Jared

Jared — Thu, 11 Feb 2010 18:19:53 +0000

To simplify Daniel’s responses:P

The default is…

cost = 100,000,000/interface bandwidth in Bps

Which could also be written as cost = 100Mbps/interface bandwidth

So if we were calculating the cost on a 100Mb link it would result in the cost of 1. Likewise as Daniel said, a 10Gb link would also result as 1 in this case because the reference bandwidth hasn’t been changed using the command Daniel mentioned (auto-cost reference-bandwidth ### in Mbps).

By: Daniel

Daniel — Thu, 11 Feb 2010 14:24:07 +0000

BTW with the default
cost= 10000 0000/bandwith in bps
a 10gb link has the same cost as a FA link

hece why you’ll need to change it with the above commands

By: Daniel

Daniel — Thu, 11 Feb 2010 14:22:51 +0000

oops, I’ll admit I looked it up
I was off by about 6 0s
cost= 10000 0000/band-with in bps