From: C. Warren (chwarren@cox.net)
Date: Fri Sep 06 2002 - 20:10:16 GMT-3
From what I found in the docs, remote statement takes precedence....had
to search 11.x docs to find that! I found it under "dlsw remote-peer
frame-relay" and a few others.....
http://www.cisco.com/univercd/cc/td/doc/product/software/ios113ed/113ed_
cr/ibm_r/brprt2/brdlsw.htm
"The cost keyword specified in a remote peer statement takes precedence
over the cost learned as part of the capabilities exchange with the
remote peer. The cost keyword is relevant only in fault tolerance mode."
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> Behalf Of Warner, Thomas S
> Sent: Friday, September 06, 2002 5:06 PM
> To: 'ccielab@groupstudy.com'
> Subject: DLSW local peer cost vs. remote peer cost
>
>
> All-
>
> DLSW allows the specification of a cost associated with each
> of the DLSW remote peers (dlsw remote-peer 0 tcp x.x.x.x cost
> y) in addition to allowing the remote peers themselves to
> have a local cost (dlsw local-peer peer-id x.x.x.x cost y)
> specified. The default cost is 3 and the lowest cost is
> always preferred in the event that unequal configured costs
> are present. I have searched the DOC CD and searched
> portions of the archives but I am having trouble finding out
> which value takes precedence - local or remote. Consider the
> following scenario:
>
> R6 needs to access resources that are accessible via both R1
> and R2. R1 and R2 both have an Ethernet interface that are
> part of the dlsw bridge group with the resources attached to it.
>
> R6
> / \
> / \
> / \
> R1 R2
>
>
>
> R6
>
> dlsw local-peer peer-id 6.6.6.6
> dlsw remote-peer 0 tcp 2.2.2.2 cost 1 (I prefer R2)
> dlsw remote-peer 0 tcp 1.1.1.1 cost 2
>
> R1
>
> dlsw local-peer peer-id 1.1.1.1 (default cost of 3)
> dlsw remote-peer 0 tcp 6.6.6.6
> dlsw bridge-group 1
>
> R2
>
> dlsw local-peer peer-id 2.2.2.2 cost 4
> dlsw remote-peer 0 tcp 6.6.6.6
> dlsw bridge-group 1
>
> So, will R6 prefer R2 because in R6's REMOTE peer statements,
> the cost is lower for R2 than for R1 (1 vs 2) - or will R6
> prefer R1 because R1's LOCALLY configured cost is 3 which is
> lower than R2's LOCALLY configured cost which is 4? Which
> takes precedence for circuit establishment - local or remote?
> I would test this but I don't have access to another
> computer or a lab where I'm located right now.
>
> Let me emphasize that this is not a real life scenario so
> please don't bash me for setting something up like this. I
> came up with this question based on my readings from the doc
> cd under the DLSW Design Guide
<http://127.0.0.1:8080/cc/td/doc/cisintwk/idg4/nd2007.htm#xtocid209622>
Thanks all,
Tom Warner
Lockheed Martin Enterprise Information Systems
Computing and Network Services
email: mailto:thomas.s.warner@lmco.com
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