Network Protocol Manager for BGP sends SNMP requests to Cisco and Juniper devices to discover routing topology objects and their relationships. It supports SNMPv1, v2c, and v3 access to the BGP4 MIB objects that are defined in RFC 1657.

Network Protocol Manager for BGP reads the BGP4 MIB objects that are identified in this section to discover the following routing topology objects and their relationships:

  • BGP autonomous systems

  • BGP services

  • BGP protocol endpoints

  • BGP sessions

  • BGP session groups

    After discovering and creating the BGP topology objects in its repository, Network Protocol Manager for BGP monitors the status of the BGP objects by periodically establishing SNMP sessions to the managed devices and polling the BGP4 MIB objects that are identified in the Network Protocol Manager Configuration Guide .

    MIB objects accessed for BGP discovery lists the discovery BGP4 MIB objects that are accessed by Network Protocol Manager for BGP.

Table 1. MIB objects accessed for BGP discovery

MIB object

OID

Description

Module

bgpVersion

.1.3.6.1.2.1.15.1

Vector of supported BGP protocol version numbers.

BGP4 MIB

bgpIdentifier

.1.3.6.1.2.1.15.4

BGP identifier of local system.

BGP4 MIB

bgpLocalAS

.1.3.6.1.2.1.15.2

Local autonomous system (AS) number.

BGP4 MIB

bgpPeerIdentifier

.1.3.6.1.2.1.15.3.1.1

BGP identifier of this entry’s BGP peer.

BGP4 MIB

bgpPeerLocalAddr

.1.3.6.1.2.1.15.3.1.5

Local IP address of this entry’s BGP connection.

BGP4 MIB

BGP object creation shows the mapping between the discovery MIB objects and the creation of the BGP objects.

  1. Discovered MIB Objects

  2. bgpLocalAS

  3. Created BGP Objects

  4. AutonomousSystem

  5. Created BGP Objects

  6. BGPService

  7. BGPProtocolEndpoint

  8. bgpPeerIdentifier

  9. BGPSession

  10. bgpPeerLocalAddr

  11. BGPSessionGroup

Figure 1. BGP object creation