From: Gary Duncanson (gary.duncanson@googlemail.com)
Date: Wed Jan 02 2008 - 16:52:23 ARST
Joseph,
This is interesting. Do you mean that the reply path is a done deal because
the of the source mac used by the inbound frame?
Incidently are you saying it needs to be port-channel load-balance dest-mac
at both ends? It seems so.
Regards
Gary
----- Original Message -----
From: "Joseph Saad" <joseph.samir.saad@gmail.com>
To: "Cisco certification" <ccielab@groupstudy.com>
Sent: Wednesday, January 02, 2008 6:09 PM
Subject: Re: port-channel load-balance for 3550/3560
> 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.
>> > > > >
>> > > > >
>> > > > >
>> > > > > _________________________________________________________________
>> > > > > Free games, great prizes - get gaming at Gamesbox.
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>> >
>> > --
>> > Shiran Guez
>> > MCSE CCNP NCE1
>> > http://cciep3.blogspot.com
>> > http://www.linkedin.com/in/cciep3
>> >
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