From: Kenneth Wygand (KWygand@customonline.com)
Date: Fri Nov 28 2003 - 15:07:58 GMT-3
Jason,
Thanks and I agree with you. However, each Gigastack module has 2 ports, so only a single gigastack module is required for each switch, even if running in a complete redundant loop topology.
Someone please correct me if I am wrong?
Thanks,
Ken
-----Original Message-----
From: Jason Buszta [mailto:groupstudy@buszta.com]
Sent: Fri 11/28/2003 12:35 PM
To: Kelly, Russell G
Cc: Kenneth Wygand; ccielab@groupstudy.com
Subject: RE: Gigastacks & Clustering
I also believe that if you connect two switches to a single gigastack
module the GBIC-Gigastack will run them both in half-duplex. You should
spend the extra money and on the switch that completes the loop put dual
GBIC-Gigastacks in it.
On Fri, 28 Nov 2003, Kelly, Russell G wrote:
> -----Original Message-----
> From: Kenneth Wygand [mailto:KWygand@customonline.com]
> Sent: 28 November 2003 16:14
> To: ccielab@groupstudy.com
> Subject: Gigastacks & Clustering
>
>
> Hello and hope everyone had a great Thanksgiving...
>
> I am going to be "gigastacking" several switches together but I can't
> find too much configuration information on Cisco.com for doing this.
> All I found was a document that said to configure the gigastack
> interface as a trunk.
>
> If more than one vlan exists across the stack then yes, the gig
> interface needs to be configured as a trunk.
>
> I've also looked into switch "clustering". Are "clustering" and
> "gigastacking" mutually exclusive?
>
> Yes they are mutually exclusive. Gigastacking is just uplinking
> switches, whilst clustering is a convenient way of a single point of
> management for a whole load of switches.
>
> Do you have to cluster if you gigastack switches? -No.
>
> I know a switch cluster is a single managed unit across all switches,
> but I really want to manage each switch individually but to leverage the
> gigastacking capability. Is this possible? - Yes this is possible just
> assign each switch an IP (with the clustering too). I have done this to
> allow HP Openview to monitor each switch individually. A few issues
> around TACACS+ access to a switch that is not the cluster commander but
> each switch can be managed/monitored separately
>
>
> Does anyone have any more information on this and/or any documents you
> can point me to in order to clarify these differences?
>
> Thanks in advance,
> Ken
>
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