In the physical-transport domain, IP Availability Manager discovers Layer 2 (data-link) and Layer 3 (network) connectivity in multivendor, switched, and routed networks. It discovers the network devices by sending them Internet Control Message Protocol (ICMP) and SNMP polls.
In a Network Protocol Manager deployment, IP Availability Manager not only performs its traditional discovery of network topology objects, but it also creates BGP, EIGRP, IS-IS, and OSPF topology collection sets from the discovered network objects. Network Protocol Manager imports the topology collection sets from IP Availability Manager. Topology and CLI device-access object import from IP Availability Manager summarizes IP Availability Manager routing-topology discovery and Network Protocol Manager topology import.
![](images/GUID-385A31F9-85F4-4365-96FB-1A8746B6975A-low.png)
By default, IP Availability Manager is not enabled to create the protocol topology collection sets. The VMware Smart Assurance Network Protocol Manager Configuration Guide provides instructions for enabling this feature.