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E. M. Recio <[EMAIL PROTECTED]> wrote:
>
> The problem is that when we lose one interface, it does not pull the
> other interfaces over with it.  However, if I unplug the cable, or
> shut down the port, the nokia's failover from primary to secondary OK.

This sounds like VRRP, working as designed.

> For example, we lost our DMZ switch recently.  The switch was dead,
> but because the nokia is plugged into another switch in between (which
> was OK) there was a link light still on all three nokia interfaces. 
> The problem is that the dmz interface was the only one to switch over
> to the secondary nokia, but none of the other ones did.

The Primary device only uses its interface link status to decide what to
do.  It sees all of its interfaces have link, so it advertises with full
priority on all of them.  It does not know that it cannot reach the
required subnet due to an intermediate switch failure.

The Secondary device uses link status, and also listens for VRRP
advertisements from the Primary.  When the intermediate switch fails,
the Secondary no longer hears the advertisements from the Primary, so it
becomes master on that interface.  However, it does continue to receive
advertisements from the Primary on its other interfaces, so it cannot
take over those interfaces.

Do you believe that the Secondary should have decided, on its own, to
raise its priority over and above the Primary's so as to take over as
VRRP master?  VRRP does not really work that way.

- -- 
David DeSimone == Network Admin == [EMAIL PROTECTED]
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