check on spanning tree issues..
hth,
Mark.
At 08:09 PM 10/13/00 -0400, [EMAIL PROTECTED] wrote:
>I have two 3662 routers with four fast ethernet interfaces on each. Each
>of the 3662s are running HSRP on three of their interfaces. The three
>interfaces are connected to three Cat 3512 switches, such that one
>interface from each router connects to each switch.
>
>Here's my problem. For some reason, HSRP will not work when connected to
>the switches. The symptoms are:
>
>1. When I do a "show standby", the local router only sees the remote
>router intermittently. This causes the remote side to be listed as unknown
>2. When I disconnect the router interfaces connected to a switch and
>replace them with a crossover cable directly connected to each router,
>everything works fine
>3. When I do a "debug standby", I only see the remote router's HELLO
>packets sporadically
>4. On each switch, only one of the router interfaces comes up. The other
>constantly comes up and goes back down. If I remove standby, both
>interfaces come up fine.
>5. Using a sniffer on the switch, I see the active router broadcasting
>HSRP hello messages every 3 seconds. The standby router (with it's
>interface constantly going up and down) sends packet in short bursts every
>once in awhile.
>
>I did a "clear arp-cache" on the routers and the switches, but that didn't
>seem to help.
>
>Does anyone know what the problem could be?
>
>
>Rob
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