By creating an MQe network that uses multiple bridge queues, the number of messages per second that can be sent through the gateway could be dramatically increased.
The number of messages sent through the gateway is not only dependant on the configuration of your gateway, but on other issues such as the type of messages being sent, network configuration, and hardware.
In one test scenario, it was found that when approximately 1350 clients were connecting to a gateway, the increase in the number of messages being sent per second between a single bridge queue and 10 bridge queues was 34 fold.
This rose to an 86-fold increase when comparing a single bridge queue to 50 bridge queues but comparing a single bridge queue to 1350 bridge queues the increase dropped back to 34 fold.
Note this increase is only related to messages being sent to MQ and not messages received from MQ.