Im trying to set up two Load balancers, LM-1500 from Kemp technologies.
The setup was actually pretty easy to configure. The load balancer are configure in high availability.
The HA and failover for the Web Server configure in the virtual services work like a charm, but for the Load balancer failover, It doesnt seems to work properly.
For instance, if you power off the active load balancer, the other active/passive become the active one in less than 2 sec, so that part is good.
But while the failover works it still takes one minute for the website to respond. Sometime the website will start responding only when the actual active load balancer goes back up.
It seems like the switch (Cisco catalyst 2950 v12.1) does cannot clear the Mac address table fast enough. Ive tried to disable it or to put the Mac-address-table aging-time to the minimum (10) but still doesnt work.
Any idea would be appreciated