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CISCO IP SLA

  • June 4, 2026
  • 1 reply
  • 9 views
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Hello, I am currently monitoring the IP SLA on a Cisco 9300.
I am having trouble retrieving the jitter metric.However, this metric is clearly visible on the router side.
Could you help me?

sudo -u centreon-engine /usr/lib/centreon/plugins//centreon_cisco_standard_snmp.pl --plugin=network::cisco::standard::snmp::plugin --mode=ipsla --hostname=XXX --snmp-version='3'  --snmp-username=XXX  --authprotocol=SHA --authpassphrase=XXX --privprotocol=AES --privpassphrase=XXX--filter-tag='10006'  --warning-CompletionTime=50 --critical-CompletionTime=100  --use-new-perfdata

OK: RTT '10006' Status : operation sense is 'ok', Completion Time : 7, Number Over Thresholds : 0 | '10006#completion_time'=7;0:50;0:100;0; '10006#number_over_thresholds'=0;;;;

 

----    Information on the router side ------------

RTENTRAL#show ip sla statistics 10006
IPSLAs Latest Operation Statistics

IPSLA operation id: 10006
Type of operation: icmp-jitter
        Latest RTT: 5 milliseconds
Latest operation start time: 16:02:41 UTC Wed Jun 3 2026
Latest operation return code: OK
RTT Values:
        Number Of RTT:  RTT Min/Avg/Max: 2/5/16 milliseconds
Latency one-way time:
        Number of Latency one-way Samples: 5
        Source to Destination Latency one way Min/Avg/Max: 2/2/3 milliseconds
        Destination to Source Latency one way Min/Avg/Max: 0/2/14 milliseconds
Jitter Time:
        Number of SD Jitter Samples: 4
        Number of DS Jitter Samples: 4
        Source to Destination Jitter Min/Avg/Max: 0/1/1 milliseconds
        Destination to Source Jitter Min/Avg/Max: 0/7/14 milliseconds
Over Threshold:
        Number Of RTT Over Threshold: 0 (0%)
Packet Late Arrival: 0
Out Of Sequence: 0
        Source to Destination: 0        Destination to Source 0
        In both Directions: 0
Packet Skipped: 0       Packet Unprocessed: 0
Packet Loss: 0
        Loss Periods Number: 0
        Loss Period Length Min/Max: 0/0
        Inter Loss Period Length Min/Max: 0/0
Number of successes: 2
Number of failures: 0
Operation time to live: Forever

 

1 reply

ltirand
Centreonian
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  • ltirand
  • Centreonian
  • June 5, 2026

Hello :)

What you are observing is actually expected behavior on the first run.

The completion_time metric comes from rttMonLatestRttOperCompletionTime, which is an instantaneous value read directly from SNMP. All the jitter-related metrics (average jitter, packet loss ratio, delays, etc.), however, are computed as deltas between two successive collections, the plugin stores a cache file on the first run and can only calculate the differences on the second run.

So on the first execution, those metrics are skipped with a "Buffer creation" message internally, which is why you only see completion_time and number_over_thresholds in the output.

Wait for the poller to run a second time and the jitter metrics should appear.

If after two collections the jitter metrics are still missing, the next step would be to verify that your Cisco 9300 actually populates the rttMonJitterStats OIDs for an icmp-jitter operation type via SNMP (the CLI output does not guarantee the MIB is populated). You can check with:

snmpwalk -v3 -u <user> -l authPriv -a SHA -A <authpass> -x AES -X <privpass> <hostname> .1.3.6.1.4.1.9.9.42.1.3.5.1

If that walk returns no results or empty values for your operation index, the device is not exposing jitter stats via SNMP for this operation type, which would be a device-side limitation.

Best regards.

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