[SOLVED] NOKIA 7750-SR VPRN Interfaces SNMP Polling

[shinvector]

Making this post because there are many people like me who can't figure out how graph interfaces in a VPRN on Nokia SR-O.S routers for the longest time.
Big surprise is that no additional script or template is required.
This solution is verified working on Nokia SR-OS TiMOS-C-16.0.R16 on 7750-SR platform with Cacti version 1.2.17.

I will stated some of the confusing bits first:

• Only SNMP v2c community polling is supported in a VPRN. (snmpv3 is only supported at router Base as far as I can tell currently.)

• SNMP Uptime OID is not supported by the VPRN SNMP community so, do not use it for "Downed Device Detection", use must 'Ping.'

• Every SNMP v2c community must be globally unique in the router.

• You need to create a new 'Device' and you can use the 'Device Template - Cisco Router.' (Each VPRN will be treated as a separate router.)

• If you are already polling the router Base eg. via the system-ip etc. You can reuse the same management IP for Polling !! (The SNMP community will only show the interfaces for the VPRN it configured on. )

Configuration required on the router, the ACL is for extra security.

! Created SNMP source access list.
! The source IP is your cacti server or poller.

Code: Select all

configure system
        security
            snmp
                src-access-list "ACL-SNMP"
                    src-host "CACTI-PRIVATE" address 10.1.1.100
                exit
exit all	

! Create SNMP community under respective VPRN for the router. (Use the correct VPRN!)
! Enabled SNMP accesss in VPRN.
! Example below is for Read Only community.
! Source ACL for better security.

Code: Select all

	
configure service	
        vprn 100000010			
            snmp
                community SNMP-comm-VPRN100000010 r version v2c src-access-list "ACL-SNMP"
                access
            exit
exit all	

Example configuration on Cacti
Description: ROUTER_HOSTNAME-VPRN_100000010
Hostname: ROUTER MANAGEMENT IP
Device Template: Cisco Router
SNMP Version: Version 2
SNMP Community String: As Configured.
Downed Device Detection: 'Ping' Or 'Ping or SNMP Uptime'.
Associated Data Queries - SNMP Interfaces Statistics > Refresh, you should get data.





Most of the credit goes to a very old post that had the solution which may have been missed by many :
Alcatel 77XX monitoring of SAP's / SDP's