User manual

The WebMux™ Model 480S, 580SG, and 680PG User Guide – Version 7.0.x

When creating a farm, choose a unique farm IP address in the network, and then

add the server IP address under that farm. Load balancing occurs when the

“Farm IP” is accessed instead of the servers’ actual IP.

There are no configuration changes that need to be made on the servers, only

the way they are physically connected to the network.

The diagram also gives an example of a redundant WebMux™ setup. In this

case, it is absolutely required that the WebMuxes™ are connected in between

two switches that have Spanning Tree Protocol (STP) enabled. STP controls the

path where packets go in the existence of redundant Ethernet bridges according

to bridge priority so that loops do no occur. Without this, packets will loop

endlessly between the WebMuxes™ and saturate their network path.

During a failover situation, you may immediately notice that the backup becomes

unreachable even though the LCD shows that it is active. This is a temporary

situation as the switches detect new bridge priorities. This failover time usually

takes about 15-30 seconds. This also happens when the primary comes back

online and the secondary returns back to standby mode.

For single WebMux setup, any kind of switch will work, since there is only one

bridge path exist on the network. No Spanning Tree Protocol is required.