From: Joseph Saad (joseph.samir.saad@gmail.com)
Date: Wed Jan 02 2008 - 16:09:50 ARST
Darren, the return traffic will need to have port-channel load-balance
dest-mac also but on the other switch. load balancing is determined by the
"Sending" switch. don't you think?
On Jan 2, 2008 5:42 PM, Darren Johnson <dazza_johnson@yahoo.co.uk> wrote:
> To load-balance from source at SW1 to destinations at SW2, you will need
> to
> configure the etherchannel as:
>
> port-channel load-balance dest-mac
>
> Obviously, the return traffic would need the opposite (source-mac)....
>
> Check it out.
>
>
> http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/1
> 2.2_25_see/configuration/guide/swethchl.html#wp1020011
>
> Dazzler
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Frank CCIE
> Sent: 31 December 2007 03:29
> To: shiran guez
> Cc: WorkerBee; Herbert Maosa; mazhar minhas; ccielab@groupstudy.com
> Subject: Re: port-channel load-balance for 3550/3560
>
> Hi, Experts,
>
> If there is only one source at SW1 and many destination at SW2, and
> SW3 is between SW1 and SW2. SW3 is 3550.
>
> How to config load-balance in SW3?
>
> Thanks
>
> Frank
>
> On Dec 30, 2007 1:33 PM, shiran guez <shiranp3@gmail.com> wrote:
> > if there is only one source and one destination yes it doesn't meter but
> if
> > there is one source and many destination it dose meter the direction of
> the
> > load balancing as if there is src-mac method on SW1 and SW1 connected to
> SW2
> > and behind SW2 there are many destination, then it doesn't meter all
> traffic
> > will be using one link and not really load balance on the ether-channel
> > bundle but if you set on SW1 dst-mac and the host on SW1 is sending to
> many
> > destinations then there will be load balancing on the ether-channel.
> >
> > so it is important to know the ratio of the traffic source to
> destination,
> > if it is almost the same then you have of the 3560 src-dest-mac.
> >
> > so please Random is your worst enemy as Network Expert!
> >
> >
> >
> >
> >
> > On Dec 30, 2007 7:38 PM, WorkerBee <ciscobee@gmail.com> wrote:
> >
> > > Does it matters if the algo is different from both ends? It can be set
> > > differently at
> > > both ends and thins still work because at any one time, the traffic
> > > stream is send
> > > across only 1 link out of x links in that bundle.
> > >
> > > The switch will still receive the packets correctly. Randomness maybe
> the
> > > best
> > > form of load balancing..
> > >
> > > On Dec 30, 2007 10:47 PM, Herbert Maosa <asawilunda@googlemail.com>
> wrote:
> > > > It gets interesting when the port channel is between a 3550 and a
> 3560.
> > > >
> > > > :-)
> > > >
> > > > Herbert.
> > > >
> > > >
> > > > On Dec 30, 2007 1:33 PM, mazhar minhas <mmgnoc@hotmail.co.uk> wrote:
> > > >
> > > >
> > > > > hi,
> > > > >
> > > > > EXPERTS,
> > > > >
> > > > > i have one Questions here.
> > > > >
> > > > > i m trying to configure load-balance between port-channels.
> > > > >
> > > > > Found 2 commands, and need to confirm if you guys can help please
> > > > > ======
> > > > > there are 2 differnet commands as for as i know .....
> > > > > according to my knowledge.....
> > > > > here they are
> > > > >
> > > > > port-channel load-balance src.mac (this is for 3550)
> > > > >
> > > > > por-chanel load-balance src-dst-ip (this is for 3560)
> > > > >
> > > > > can some one please confirm this....
> > > > >
> > > > > many thanks.
> > > > >
> > > > >
> > > > >
> > > > > _________________________________________________________________
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> >
> > --
> > Shiran Guez
> > MCSE CCNP NCE1
> > http://cciep3.blogspot.com
> > http://www.linkedin.com/in/cciep3
> >
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