Mobile users who run MSMQ-based applications while disconnected from the network place an additional load on the system, as they attempt to send or receive a large number of messages when they reconnect to the system. This temporary load can be transferred to additional MSMQ routing servers to prevent reduced performance.
You might choose to have mobile independent clients assigned to use specific MSMQ routing servers (using InRSs and OutRSs) to evenly distribute the load across several servers. Because InRS and OutRS settings are not used when independent clients connect to the MSMQ network from sites other than their original site, this configuration works best if the independent clients do not connect to the MSMQ network at other sites.