White Papers

Table Of Contents
MIB Objects for Viewing the System Image on Flash Partitions
To view the system image on Flash Partition A, use the chSysSwInPartitionAImgVers object or, to view the system image on
Flash Partition B, use the chSysSwInPartitionBImgVers object.
Table 128. MIB Objects for Viewing the System Image on Flash Partitions
MIB Object OID Description MIB
chSysSwInPartitionAImgVers 1.3.6.1.4.1.6027.3.10.1.2.8.1.11 List the version string of
the system image in Flash
Partition A.
Chassis MIB
chSysSwInPartitionBImgVers 1.3.6.1.4.1.6027.3.10.1.2.8.1.12 List the version string of
the system image in Flash
Partition B.
Chassis MIB
Monitoring BGP sessions via SNMP
This section covers the monitoring of BGP sessions using SNMP.
BGP SNMP support for non-default VRF uses a SNMP context to distinguish multiple BGP VRF instances within a single BGP
process. SNMP context is a repository of management information that can be accessed through the SNMP agent. SNMP
supports multiple contexts in a device. SNMPv3 has a context name field in its PDU, which automatically allows the context
name field to be mapped to a particular VRF instance without having to be mapped to a community map. SNMPv2c context has
to be mapped to a community map. A new CLI command, snmp context, under BGP context, has been introduced to perform
this function.
To map the context to a VRF instance for SNMPv2c, follow these steps:
1. Create a community and map a VRF to it. Create a context and map the context and community, to a community map.
sho run snmp
snmp-server community public ro
snmp-server community public ro
snmp-server community vrf1 ro
snmp-server community vrf2 ro
snmp-server context context1
snmp-server context context2
snmp mib community-map vrf1 context context1
snmp mib community-map vrf1 context context2
2. Configure snmp context under the VRF instances.
sho run bgp
router bgp 100
address-family ipv4 vrf vrf1
snmp context context1
neighbor 20.1.1.1 remote-as 200
neighbor 20.1.1.1 no shutdown
exit-address-family
address-family ipv4 vrf vrf2
snmp context context2
timers bgp 30 90
neighbor 30.1.1.1 remote-as 200
neighbor 30.1.1.1 no shutdown
exit-address-family
To map the context to a VRF instance for SNMPv3, follow these steps:
1. Create a community and map a VRF to it. Create a context and map the context and community, to a community map.
snmp-server community public ro
snmp-server community VRF1 ro
snmp-server community VRF2 ro
snmp-server context cx1
848
Simple Network Management Protocol (SNMP)