From: Tim (ccie2be@nyc.rr.com)
Date: Mon Nov 14 2005 - 20:33:02 GMT-3
Jason,
I once tried to memorize the auto-ref-bw formula but keep forgetting it
after a couple of weeks. Then I realized doing that was wasting too many
mental cpu cycles since that formula is right at the beginning of the ospf
command reference.
So, you're probably better off just checking the Doc-CD and that way you're
not risking someone on GS telling you the wrong thing (by mistake).
What you DO have to remember re: using this command is that if you use it on
one ospf router, you must use it on all ospf routers in the domain (or maybe
in the area, I'm not 100% sure). Better double check that.
Re: Q 2 - I've tried using that ip dhcp-server command in a couple IE
practice labs but never got it to work. I always needed to use the ip
helper command instead. I also recall never being able to find out why that
was. Was it the 2500's I was using? The IOS release? My just screwing up?
I never found out.
HTH, Tim
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Jason Edelman (jaedelma)
Sent: Monday, November 14, 2005 5:52 PM
To: ccielab@groupstudy.com
Subject: 2 Questions
Hi all,
Two questions:
1. In calculating the ospf metric for an etherchannel, is it
autorefbw / (sum of links in etherchannel)?
So by default, with 2x 100Meg links in an etherchannel, would it be
100Meg/200Meg, obviously yielding in a 1 for the OSPF cost. In this
situation, we would increase the refbw...
2. Has anyone seen the 'ip dhcp-server' command used in a situation
other than when configuring dhcp over PPP in the IPCP negotiation
process?
Thanks,
Jason
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