From: Ramasubramanian Sethuraman (snrmanian@hotmail.com)
Date: Sun Mar 07 2004 - 21:50:00 GMT-3
William,
Thanks for the detailed explanation.
In the foll url,
i see the foll statement,
For multiple peer connections, peer costs must be applied. The DLSw+
Enhanced Load Balancing feature works only with the lowest (or equal) cost
peers. For example, if the user specifies dlswrtr1, dlswrtr2 and dlswrtr3
with costs of 4, 3, and 3 respectively, DLSw+ establishes new circuits with
only dlswrtr 2 and dlswrtr3.
Does that mean for solutions 2) and 3), even if load balancing is
configured,
the user traffic won't be load balanced as their cost are not the same ?
The user traffic always goes thru R2. Pls clarify.
I will go thru the list of docs you pointed.
thanks,
subbu
>From: "William Chen" <kwchen@netvigator.com>
>Reply-To: "William Chen" <kwchen@netvigator.com>
>To: "Ramasubramanian Sethuraman" <snrmanian@hotmail.com>,
><ccielab@groupstudy.com>
>Subject: Re: dlsw - backup peer / cost question ..
>Date: Mon, 8 Mar 2004 08:37:09 +0800
>MIME-Version: 1.0
>Received: from mc3-f12.hotmail.com ([64.4.50.148]) by mc3-s5.hotmail.com
>with Microsoft SMTPSVC(5.0.2195.6824); Sun, 7 Mar 2004 16:37:51 -0800
>Received: from lists.groupstudy.com ([207.44.210.9]) by mc3-f12.hotmail.com
>with Microsoft SMTPSVC(5.0.2195.6824); Sun, 7 Mar 2004 16:37:51 -0800
>Received: (from sympa@localhost)by lists.groupstudy.com (8.11.6/8.11.6) id
>i280bSx15784;Sun, 7 Mar 2004 19:37:28 -0500
>Received: from groupstudy.com (groupstudy.com [66.220.63.9])by
>lists.groupstudy.com (8.11.6/8.11.6) with ESMTP id i280bJo15762for
><ccielab@lists.groupstudy.com>; Sun, 7 Mar 2004 19:37:19 -0500
>Received: from groupstudy.com (localhost [127.0.0.1])by groupstudy.com
>(8.12.10/8.12.10) with ESMTP id i280bGw5010833GroupStudy Mailer; Mon, 8 Mar
>2004 00:37:16 GMT
>Received: (from listserver@localhost)by groupstudy.com
>(8.12.10/8.12.8/Submit) id i280bG39010832GroupStudy Submission Server; Mon,
>8 Mar 2004 00:37:16 GMT
>Received: from imsm031.netvigator.com (n219076066002.netvigator.com
>[219.76.66.2]) by groupstudy.com (8.12.10/8.12.10) with ESMTP id
>i280bEw5010808 GroupStudy Mailer; Mon, 8 Mar 2004 00:37:14 GMT
>Received: from season (n218103240235.netvigator.com [218.103.240.235]) by
>imsm031.netvigator.com (8.12.10/8.12.10) with SMTP id i280b1wH016637; Mon,
>8 Mar 2004 08:37:01 +0800
>X-Message-Info: hBMc313Vp1KL1epIc0CBlWXl7aMENmfdevHnzKkkQJ8=
>Message-ID: <000501c404a5$7e10ed50$0200a8c0@season>
>References: <BAY2-F86MxhIHehZyhQ0002a114@hotmail.com>
>X-Mailer: Microsoft Outlook Express 6.00.2800.1158
>X-ASK-Info: Our key was found in the mail
>X-Loop: ccielab@groupstudy.com
>X-Sequence: 13607
>Errors-to: ccielab-owner@groupstudy.com
>Precedence: bulk
>X-no-archive: yes
>List-Id: <ccielab.groupstudy.com>
>List-Help: <mailto:sympa@groupstudy.com?subject=help>
>List-Subscribe: <mailto:sympa@groupstudy.com?subject=subscribe%20ccielab>
>List-Unsubscribe:
><mailto:sympa@groupstudy.com?subject=unsubscribe%20ccielab>
>List-Post: <mailto:ccielab@groupstudy.com>
>List-Owner: <mailto:ccielab-request@groupstudy.com>
>Return-Path: ccielab-owner@groupstudy.com
>X-OriginalArrivalTime: 08 Mar 2004 00:37:52.0026 (UTC)
>FILETIME=[96DAE7A0:01C404A5]
>
>Hi,
>
> First of all, there are two kinds of connection will be setup between
>the
>DLSW peers. One is the control connection between two peers (hereafter I
>will refert it as peer connection), and one are the circuits formed when
>there are real user traffics across the two peers (hereafter I will refer
>it
>as circuits). Circuits will only be setup across two peers which have peer
>connections.
>
> The first solution will only form peer connections between R1 and R2,
>but
>not R1 and R3. However, if R2 is unreachable, DLSW will form peer
>connections between R1 and R3. (Which is the solution I will pick as the
>answer of the question. I think it depends on how you interpret the word
>"use the path". To me, the question is asking to make DLSW use the path,
>and
>it generally means peer connection. If the question explicitly states
>circuit/user traffic should use the path, then I will pick either solution
>2
>or 3).
>
> The second and third solution are basically the same. However, the peer
>cost states in remote-peer command will override the cost advertised by the
>remote-peer (i.e. the cost in the local-peer command of the remote peer).
>Moreover, in these two cases, both peer connection will formed between R1
>and R2, R1 and R3. However, circuits only will be formed using the lowest
>cost peer connection (i.e R1 and R2 in this example), unless you use the
>load balance.
>
>
>http://www.cisco.com/en/US/products/sw/iworksw/ps2474/prod_technical_reference09186a008007ce40.html
>
>Best Regards,
>William Chen
>
>----- Original Message -----
>From: "Ramasubramanian Sethuraman" <snrmanian@hotmail.com>
>To: <ccielab@groupstudy.com>
>Sent: Monday, March 08, 2004 3:20 AM
>Subject: dlsw - backup peer / cost question ..
>
>
> > Hi,
> >
> > If the question is
> >
> > R1(192.168.4.4) should use R2 (192.168.5.5) when its available.
> > When R2 is unreachable, R1 should use the path thru R3 (192.168.6.6)
> >
> > Pls let me know if either of the foll 3 solutions can be given.
> >
> > Solution 1)
> > -----------------
> >
> > R1
> > ---
> > dlsw local-peer peer-id 192.168.4.4
> > dlsw remote-peer 0 tcp 192.168.5.5
> > dlsw remote-peer 0 tcp 192.168.6.6 backup-peer 192.168.5.5
> >
> > R2
> > ---
> > dlsw local-peer peer-id 192.168.5.5 prom
> >
> > R3
> > ----
> > dlsw local-peer peer-id 192.168.6.6 prom
> >
> >
> > Solution 2)
> > ----------------
> >
> > R1
> > ---
> > dlsw local-peer peer-id 192.168.4.4
> > dlsw remote-peer 0 tcp 192.168.5.5 cost 1
> > dlsw remote-peer 0 tcp 192.168.6.6 cost 2
> >
> > R2
> > ----
> > dlsw local-peer peer-id 192.168.5.5 prom
> >
> > R3
> > ----
> > dlsw local-peer peer-id 192.168.6.6 prom
> >
> >
> > Solution 3)
> > --------------
> > R1
> > ---
> > dlsw local-peer peer-id 192.168.4.4
> > dlsw remote-peer 0 tcp 192.168.5.5
> > dlsw remote-peer 0 tcp 192.168.6.6
> >
> > R2
> > ----
> > dlsw local-peer peer-id 192.168.5.5 prom cost 1
> >
> > R3
> > ----
> > dlsw local-peer peer-id 192.168.6.6 prom cost 2
> >
> >
> > One more question, if i give the cost for R5 locally(in local-peer
> > statement) as well
> > in R2 (using the remote-peer statement for R5), which cost will be used
>for
> > R5 by R2 ?
> >
> > thanks,
> > subbu
> >
> > _________________________________________________________________
> > Post Classifieds on MSN classifieds.
>http://go.msnserver.com/IN/44045.asp
> > Buy and Sell on MSN Classifieds.
> >
> > _______________________________________________________________________
> > Please help support GroupStudy by purchasing your study materials from:
> > http://shop.groupstudy.com
> >
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
>_______________________________________________________________________
>Please help support GroupStudy by purchasing your study materials from:
>http://shop.groupstudy.com
>
>Subscription information may be found at:
>http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Thu Apr 01 2004 - 08:15:16 GMT-3