VSS 1440 vs STP+HSRP for highest core availability

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yassine-m Tue, 11/20/2007 - 04:40
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Each VSS system is composed of 2 Cat 6500 managed as one unit, VSS ensure a permanent layer 2 connectiviy between the two catalyst. So this solution bring a full redundancy by eliminating SPOF.

But if the two 6500s aren't configured as a VSS pair, and use STP+HSRP for the dual-connected server, iSCSI SAN hosts, and access layer switches, there's also no single point of failure. My concern is that the VSS system/protocol itself is newer, less known, and possibly more complex than STP. Essentially it boils down to a single mechanism to take care of the fail-over ... and I'm thinking I trust STP more than VSS!

Edison Ortiz Tue, 11/20/2007 - 18:20
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Then I suggest contacting your Cisco SE and have a run on a VSS pair in your Lab until you feel comfortable.

Think of the VSS design as running a stackable 3750 vs 3560 with uplink ports.


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