Problem with cluster Ms and switch Cisco

[robyone64]

Hi, i've a problem with a Ms cluster (Broadcom network card).
When the resource are switched between nodes, my switch does not update his arp table of the ip address resource of the cluster, so the resources become unreacheable

 

[ShackDaddy]

The cluster should be using a single virtual IP that the whole cluster answers to. Hopefully I'm not misunderstanding your problem.

You need to add an entry on the switch to keep the virtual MAC address from ever being associated with a specific port.

Here is what the new line in the config will look like:

"arp [ip address of cluster] [virtual mac address] ARPA"

To determine the virtual MAC, you should probably ping the cluster using its cluster IP from another host on the same subnet and then check your ARP cache.

The other solution to this problem is to put your whole cluster on a single hub, and plug that hub into the switch so that the switch port never changes. That's what I've had to do to solve some NLB problems.

ShackDaddy