Is VSS Applicable for single ethernet connected servers

Unanswered Question
Sep 23rd, 2009

It appears that as the active supervisor reboots, it take down (disables) all ports in its chassis as it reboots. This causes a outage to all single connected servers to that chassis for the reboot time period. In our case this is a 8 minutes outage.

I have this problem too.
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iyde Wed, 09/23/2009 - 09:06

Right.

Also, if the two Cat6500 which make up the VSS system looses the VSL link between them, they end up in dual-active mode and the way that is handled is to shut all interfaces in the previous master switch.

That is why the strong recommendation is _not_ to single-attach anything to a VSS system, so either use dual-attached servers or have your single-attached servers (and everything else) connected to a server access switch which then is uplinked to both chassis in the VSS bundle.

HTH.

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