Deploy DAs on your enterprise if any of the following conditions are true:
Multicast SLP traffic exceeds 1 percent of the bandwidth on your network, as measured by snoop.
UA clients experience long delays or timeouts during multicast service requests.
You want to centralize the monitoring of SLP service advertisements for particular scopes on one or several hosts.
Your network does not have multicast enabled and consists of multiple subnets that must share services.
Your network employs devices that support earlier versions of SLP (SLPv1) or you would like SLP service discovery to interoperate with Novell Netware 5.