hi,
Is there any way to figure out which SNMP OID is being used to monitor IPSLA jitter statistics ?
Currently, the two IPSLA operation types that have configured in the router is "path-jitter" and "icmp-echo". It seems Solarwinds is able to monitor few Jitter statistics. (Well, I dont have direct access to the Solarwinds tool out here). Here is snippet of the Solarwinds IPSLA config :-
ip sla 40006
path-jitter <IP> source-ip <IP>
vrf pub
owner SW.IpSla.VA1-SOLAR.SolarWindsOrion
frequency 300
ip sla schedule 40006 life forever start-time now ageout 0
ip sla 40007
path-jitter <IP> source-ip <IP>
vrf pub
owner SW.IpSla.VA1-SOLAR.SolarWindsOrion
frequency 300
ip sla schedule 40007 life forever start-time now ageout 0
ip sla 40010
icmp-echo <IP> source-ip <IP>
owner SW.IpSla.VA1-SOLAR.SolarWindsOrion
frequency 300
timeout 180000
threshold 400
ip sla schedule 40010 life forever start-time now ageout 3600
I wanted to view the jitter statistics by doing a snmpwalk. The problem is that snmpwalk returns back a zero for *all* the jitter related OIDs. I have been looking the SNMP object - 1.3.6.1.4.1.9.9.42.1.5.2.1.x (rttMonLatestJitterOperEntry) for the IPSLA jitter numbers. Refer to http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?objectInput=1.3.6.1.4.1.9.9.42.1.5.2.1&translate=Translate&submitValue=SUBMIT&submitClicked=true
A Cisco white paper - Cisco IOS IP Service Level Agreements User Guide [Cisco IOS IP Service Level Agreements (SLAs)] - Cisco Systems - in the section - "The Cisco IOS IP Service Level Agreements RTTM on MIB" points out the following - "The Cisco Response Time Monitor MIB (Cisco-RTTMON-MIB.my) is the MIB used for IP SLAs. The only Cisco IOS IP SLAs operations that are not supported are Frame relay, Path Jitter, and ATM operations." Am I not seeing any numbers while doing a snmpwalk through the jitter OIDs because "Path Jitter" is not supported and that happens to be the only jitter-related operation type configured in the router ?
How is Solarwinds able to gather the IPSLA statistics ? Does it use a different set of OIDs ? How do we figure out what OIDs solarwinds is using to successfully monitor IPSLA jitter ?
Thanx !
