From: Tim Fletcher (tim@fletchmail.net)
Date: Tue Apr 08 2003 - 12:21:56 GMT-3
Just think of an ether channel as multiple physical links combined into a
single logical link. So just like we can make a single port either a L2 or
a L3 port, we can do the same with an ether channel.
-Tim Fletcher #11406
At 06:34 PM 4/8/2003 +0800, wsqccie@hotnail.com wrote:
>Hi all
> still do not clera understand, pls explian when I need to use l2
> ethernet or l3 and why
>----- Original Message -----
>From: "Pratt, Jeremy" <JPratt@coh.org>
>To: "'Jeff Szeto'" <jytszeto@hotmail.com>; "Donny MATEO"
><donny.mateo@sg.ca-indosuez.com>; "OhioHondo" <ohiohondo@columbus.rr.com>;
>"Teck PhrEAk!!" <phreakinphunk@hotmail.com>
>Cc: <ccielab@groupstudy.com>
>Sent: Tuesday, April 08, 2003 12:27 AM
>Subject: RE: Layer 3 etherchannel
>
>
> > Just remember that you have to have different subnets on each side of
> > the L3
> > channel or your routers wont handle things too well.
> >
> > -----Original Message-----
> > From: Jeff Szeto [mailto:jytszeto@hotmail.com]
> > Sent: Friday, April 04, 2003 5:04 AM
> > To: Donny MATEO; OhioHondo; Pratt, Jeremy; Teck PhrEAk!!
> > Cc: ccielab@groupstudy.com
> > Subject: Re: Layer 3 etherchannel
> >
> >
> > Thank you for your help.
> >
> > What I have learnt now is,
> >
> > Layer 3 and Layer 2 etherchannel both aggregate bandwidth. However, the
> > layer 3 one can only associated with 1 vlan while the layer 2 one can
> > also
> > become a trunk link. So, it my network is a flat network, using layer 3
> > etherchannel is better as it avoid the spanning tree problem.
> >
> > Jeff
> > ----- Original Message -----
> > From: "Donny MATEO" <donny.mateo@sg.ca-indosuez.com>
> > To: "Szeto Jeff" <jytszeto@hotmail.com>
> > Cc: <ccielab@groupstudy.com>; <nobody@groupstudy.com>
> > Sent: Friday, April 04, 2003 9:32 AM
> > Subject: Re: Layer 3 etherchannel
> >
> >
> > >
> > > Not sure I get your point.
> > >
> > > On one side you use etherchannel, and the other side you use
> > etherchannel.
> > Same technology so what's the difference ?
> > >
> > > If you want to bundle bandwitdh you use etherchannel. Whether you use
> > the
> > virtual etherchannel interface for trunking or for L3 routing that is a
> > matter of what your need are.
> > > If you are talking about design on whether a L3 capable switch be
> > configured with terminating the VLAN locally or run them through a trunk
> > port, that is an entirely different question and still depends on what
> > your
> > need.
> > >
> > > Donny
> > >
> > >
> > >
> > > "Szeto Jeff"
> > > <jytszeto@hotmail To:
> > ccielab@groupstudy.com
> > > .com> cc:
> > > Sent by: Subject: Layer 3
> > etherchannel
> > > nobody@groupstudy
> > > .com
> > >
> > >
> > > 03-04-2003 21:53
> > > Please respond to
> > > "Szeto Jeff"
> > >
> > >
> > >
> > >
> > >
> > >
> > > Hi Group,
> > >
> > > Could someone explain when should I use layer 3 etherchannel? What
> > makes
> > it
> > > better than layer 2?
> > >
> > > Thank you very much.
> > >
> > > Jeff
> > >
> > >
> > >
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