Re: Cat 6500 VSS MultiChassis Etherchannel (MEC) to Nexus

MEC/vPC is for cross-chassis load balancing.
You would use the combination when you have a "BOX" interconnect.

In simplest form MEC/vPC is a triangle - a virtual couple on one side, and
another device on the other, hence they are independent and therefore
completely compatible.

So yes, you can do MEC on one side and VPC on the other, but it will depend
on your physical interconnect (it has to make sense)

On Mon, Apr 6, 2009 at 7:21 AM, Reza Toghraee <reza_at_toghraee.com> wrote:

> Hello,
>
>
> Thanks for your responses.
> Nexus vPC works fine with normal etherchannels, easily works in "on" or
> "Lacp" mode and brings the portchannel UP. Only the Layer 2 Port channels
> are allowed. Only 10GB physical interfaces are allowed. Needs keepalives to
> monitor the link.
>
> VSS MEC also works fine with normal etherchannels, easily forms in "on" or
> "lacp" or "pagp" and brings the portchannel UP. Needs a protocol to monitor
> the DAD.
>
>
> But my question is that is it possible to create an etherchannel link
> between 2 CAT6500 VSS with MEC and 2 NEXUS 7000 with vPC ?
> Or in other way is MEC compatible with vPC?
>
> Thanks
> Reza
>
>
>
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Marcus Bedford
> Sent: Monday, April 06, 2009 8:29 AM
> To: groupstudycisco
> Cc: Wes Stevens; Reza Toghraee; ccielab
> Subject: Re: Cat 6500 VSS MultiChassis Etherchannel (MEC) to Nexus Virtual
> Port Channel (VPC)
>
> Also something to keep in mind is that nexus only support LACP and not
> PaGP.
> Marcus
>
>
>
>
> -----Original Message-----
> From: "groupstudycisco" <groupstudycisco_at_gmail.com>
> Sent: Sunday, April 5, 2009 7:43pm
> To: "Wes Stevens" <wrsteve33-gsccie_at_yahoo.com>
> Cc: "Reza Toghraee" <reza_at_toghraee.com>, "ccielab" <ccielab_at_groupstudy.com
> >
> Subject: Re: Cat 6500 VSS MultiChassis Etherchannel (MEC) to Nexus Virtual
> Port Channel (VPC)
>
> Yes, Nexus supports vPC's since 4.13. Current version on CCO is 4.1.4
> and recomended.
>
>
>
> Wes Stevens wrote:
> > VSS can only do 2 switches right now. I don't think vpc on the nexus is
> out in production code yet.
> >
> >
> >
> >
> > ________________________________
> > From: Reza Toghraee <reza_at_toghraee.com>
> > To: ccielab <ccielab_at_groupstudy.com>
> > Sent: Sunday, April 5, 2009 3:18:06 PM
> > Subject: Cat 6500 VSS MultiChassis Etherchannel (MEC) to Nexus Virtual
> Port Channel (VPC)
> >
> > Hi group
> >
> >
> >
> > I'm trying to figure out the possibility of creating a single logical
> link
> > between (2 Cat 6500 in VSS mode) and (2 Nexus switches) with 4 physical
> 10GB
> > links between the 6500s and Nexus, in full mesh.
> >
> > 6500 supports MEC, and Nexus supports vPC, but I want to know is it
> possible
> > to connect them together or not.
> >
> >
> >
> >
> >
> > Any ideas?
> >
> >
> >
> > Best Regards
> >
> > Reza Toghraee
> >
> >
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