[nsp] EtherChannel and a CAT 2924Xl

[Rick G]

> Rick,
>
> Yes you are correct .. The later is what we want to do .. We want 200megs
> via two Fast Ether to go to one CAT switch .. We have two CAT's
> and as four
> Fast Ethernet ports .. Thus two to each and VLANS that will only live on
> each CAT separate from each CAT .. No VLANS need to make it across to the
> other CAT .. This should be doable right?

Sorry, but it sounds like you have a single 7206 with 2 ports and you want
to connect that to 4 ports (2 switch 2 ports on each) ?   Or are you going
to have 2 7200 Fast Etherchannel groups on the 7200 ?  You still need a 1-1
ratio for cables to plug in to each port.

We tried so many variations I don't recall which ones work and which ones
didn't. It was the ISL that caused problems.  If you are just trying to have
200mb between the router and switches it will work (Etherchannel on the
7200, port-group on the 2900)

Regards

>
>
> Brian
>
> -----Original Message-----
> From: Rick G [mailto:eklists at crtservices.net]
> Sent: Wednesday, September 03, 2003 12:08 PM
> To: brwatters at abs-internet.com; jlewis at lewis.org
> Cc: cisco-nsp at puck.nether.net
> Subject: RE: [nsp] EtherChannel and a CAT 2924Xl
>
> > Hello all,
> >
> > We are looking for some direction and or real world experience on the
> > following ..
> >
> >
> > Core 7206VXR with 4 FastEther .. Two CAT 2924 switches ..
> >
> > We at this time have these Ethernet ports with primary and secondary
> > IP space bound to them supplying various servers within our networks ...
> >
> > Of course this is BAD and we need to do something different if not for
> > any reason but to lesson the broadcasts to the Ethernet interfaces
> > because of all the IP subnets that are bound to them ..
> >
> > So what we need to do is build a Ether channel from the router to the
> > CAT's ..
> >
> > 7206 with two FastEthernets bound together via Ether Channel to each
> > CAT switch ..
> >
> > Once this is done we would build VLANS over these for each IP subnet
> > and direct each to spec. ports on the CAT's ..
> >
> > Firstly is this the best way to handle this? .. Secondly How?
>
> If I understand you correctly, we *tried* the exact same thing a
> few months
> back.  Just to clarify, Cisco 7206 - 2 Fast Ethernet set as etherchannel
> group on the 7200 with ISL connected to 2 Cat 2924 with a port
> from each Cat
> in a port group for the ISL / VLAN group.  If so, it failed
> miserably.  The
> Cat 2924 don't support port-groups across multiple switches.  We kept
> getting duplicate MAC address errors, slow throughput, etc.  You can have
> the Etherchannel on the 7206, but it needs to connect to single
> cat 2924 (if
> you want a port group it needs to be 2 ports on the same switch).
>  Hopefully
> this is helpful and I didn't just ramble for no reason.
>
> We tried a few other combos and nothing really worked the way we wanted it
> to.
>
> Eric
>
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