From: dara tomar (wish2ie@gmail.com)
Date: Sun Nov 04 2007 - 14:37:23 ART
Hi Joseph,
The behavior of traffic flow described by you is the default when CEF based
switching is enabled i.e, this is flow based switching that is taking place
here for 3550 when src-mac is used!!!
Regards,
Dara
On Nov 4, 2007 6:17 PM, Scott Morris <smorris@ipexpert.com> wrote:
> Like routing, it's a one-way decision. The other side will not care even
> if
> configured differently.
>
>
> Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713,
> JNCIE-M
> #153, JNCIS-ER, CISSP, et al.
> CCSI/JNCI-M/JNCI-ER
> VP - Technical Training - IPexpert, Inc.
> IPexpert Sr. Technical Instructor
>
> A Cisco Learning Partner - We Accept Learning Credits!
>
> smorris@ipexpert.com
>
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>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Tarun Pahuja
> Sent: Saturday, November 03, 2007 4:36 PM
> To: Rich Collins
> Cc: groupstudy
> Subject: Re: Basics- Etherchannel load-balancing
>
> Rich,
> The choice depends on a lot of factors namely, what platform?
> what version of IOS? Load balancing features supported and most important
> of
> all, what are you trying to achieve.
>
> For example, If you are backing up to a server and would like to perfom
> etherchannel load balancing in intermediate switches it would not be a
> good
> idea to use the destination Mac or IP, it would be more optimal to use
> source ip address or Mac. Basically, the IOS uses a Hashing algorithm to
> find out the port it should send the packet to, similar inputs to the
> hashing algorithm would give the same port number.
>
> HTH,
> Tarun
>
> On 11/3/07, Rich Collins <nilsi2002@gmail.com> wrote:
> > Hi,
> >
> > After reading some of the documentation I think that I am still
> > missing some basics. For example:
> >
> > many hosts --SW1 ===== Sw2 ---server
> > (on same VLAN)
> >
> > With 3550's I suppose you would want src-mac on SW1 and then do you need
> the
> > reciprocal on SW2 (dst-mac)? Also a big question - what about a 3560
> on
> > one side and a 3550 on the other. What type of mixed matrices would
> work
> or
> > are suggested? i.e src-mac and dst-ip
> >
> > thanks
> > Rich
> >
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