The BGP default polling group is used by Network Protocol Manager for BGP to monitor the availability of BGP sessions. Network Protocol Manager for BGP monitors the availability by monitoring the BGPProtocolEndpoints that are discovered on Cisco or Juniper devices.
Because the standards-based BGP4 MIB (defined in RFC 1657) is used by both Cisco and Juniper devices, Network Protocol Manager for BGP uses SNMP to discover and monitor the BGP topology for Cisco and Juniper devices. The BGP polling group uses SNMP polling to monitor BGP sessions by monitoring the BGPProtocolEndpoints on the discovered devices.
The BGP polling group has a default setting and an optional setting:
BGP SNMP Setting (default)
BGP External Setting (optional)
The two settings are mutually exclusive, which means that only one or the other (but not both) can be specified for a BGP polling group at any given time.