Network Congestion Is High

If network congestion is high, you might want to limit the amount of multicast. If DAs have not already been deployed in the network, deploying DAs can drastically cut back on the amount of SLP-related multicast.

However, even after DAs are deployed, multicast is still necessary for DA discovery. You can reduce the amount of multicast necessary for DA discovery using the method described in "Configuring DA Discovery for Dial-up Networks". You can completely eliminate multicast for DA discovery using the method described in "Limiting UAs and SAs to Statically Configured DAs".