SNMP support on JDM is limited. This KB article clarifies actual SNMP support.
Trying to do snmpwalk on JDM, but not getting any response.
snmpwalk -v 2c -c lab 10.1.1.57 .1.3.6.1.4.1.2636 iso.3.6.1.4.1.2636 = No Such Object available on this agent at this OID
This articles applies only to NFX250, running on nfx-2 software. This does not apply to NFX250-Next Gen. SNMP functionality on JDM is limited. You can only get SNMP traps on interface flap on jmgmt0 interface. There is no support for snmp traps, if a VNF suddenly goes down. You can do an snmpwalk on libvirt variables, which will give you statistics on VNF CPU and memory. To initiate an snmpwalk for libvirt, you need to specify the community with the keyword host appended, and specify the oid .1.3.6.1.4.1.12345.1.1. For example, let's assume your community name is lab. The command you want to issue from your snmp client is the following:
snmpwalk -v 2c -c lab-host 10.1.1.57 .1.3.6.1.4.1.12345.1.1
where 10.1.1.57 is the IP address of your jmgmt0 interface.
admin@lab-T490:/usr/share/snmp/mibs$ snmpwalk -v 2c -c lab-host 10.1.1.57 .1.3.6.1.4.1.12345.1.1 iso.3.6.1.4.1.12345.1.1.1.2.144.208.168.155.100.10.70.91.152.168.246.25.14.198.21.37 = STRING: "testvnf" iso.3.6.1.4.1.12345.1.1.1.2.170.187.204.221.238.255.66.227.0.0.86.74.85.78.79.83 = STRING: "vjunos0" iso.3.6.1.4.1.12345.1.1.1.3.144.208.168.155.100.10.70.91.152.168.246.25.14.198.21.37 = INTEGER: 1 iso.3.6.1.4.1.12345.1.1.1.3.170.187.204.221.238.255.66.227.0.0.86.74.85.78.79.83 = INTEGER: 1 iso.3.6.1.4.1.12345.1.1.1.4.144.208.168.155.100.10.70.91.152.168.246.25.14.198.21.37 = Gauge32: 2 iso.3.6.1.4.1.12345.1.1.1.4.170.187.204.221.238.255.66.227.0.0.86.74.85.78.79.83 = Gauge32: 1 iso.3.6.1.4.1.12345.1.1.1.5.144.208.168.155.100.10.70.91.152.168.246.25.14.198.21.37 = Gauge32: 4096 iso.3.6.1.4.1.12345.1.1.1.5.170.187.204.221.238.255.66.227.0.0.86.74.85.78.79.83 = Gauge32: 512 iso.3.6.1.4.1.12345.1.1.1.6.144.208.168.155.100.10.70.91.152.168.246.25.14.198.21.37 = Gauge32: 4096 iso.3.6.1.4.1.12345.1.1.1.6.170.187.204.221.238.255.66.227.0.0.86.74.85.78.79.83 = Gauge32: 512 iso.3.6.1.4.1.12345.1.1.1.7.144.208.168.155.100.10.70.91.152.168.246.25.14.198.21.37 = Counter64: 12984190000000 iso.3.6.1.4.1.12345.1.1.1.7.170.187.204.221.238.255.66.227.0.0.86.74.85.78.79.83 = Counter64: 18669990000000 iso.3.6.1.4.1.12345.1.1.1.9.144.208.168.155.100.10.70.91.152.168.246.25.14.198.21.37 = INTEGER: 1 iso.3.6.1.4.1.12345.1.1.1.9.170.187.204.221.238.255.66.227.0.0.86.74.85.78.79.83 = INTEGER: 1
'show snmp mib'