Cisco Support Community
Community Member

IPSLA-ICMP Jitter-Packet loss count


I wanted to monitor the packet loss in my link using IP SLA. So i configured ipsla jitter and started monitoring it. When i analyze the output i found that ip sla statictics shows heavy drop in my link, but when i ping from the router no drop is observed. Why there is such difference in the out put. I read that normal ping and icmp jitter uses different icmp types messages but now i am confused whether my link proper or not. Which data i should belive.

Here is my config and statistics:

ip sla 2166

icmp-jitter num-packets 100

frequency 300

ip sla schedule 2166 life forever start-time now

Type of operation:              icmpJitter

        Latest RTT: 7 milliseconds

Latest operation start time: 13:56:49.468 IST Sat Dec 24 2011

Latest operation return code: OK

RTT Values:

        Number Of RTT: 92               RTT Min/Avg/Max: 3/7/158

Latency one-way time:

        Number of Latency one-way Samples: 0

        Source to Destination Latency one way Min/Avg/Max: 0/0/0

        Destination to Source Latency one way Min/Avg/Max: 0/0/0

Jitter Time:

        Number of Jitter Samples: 89

        Source to Destination Jitter Min/Avg/Max: 1/4/20

        Destination to Source Jitter Min/Avg/Max: 1/1/1

Packet Late Arrival: 0

Out Of Sequence: 0

        Source to Destination: 0        Destination to Source 0

        In both Directions: 0

Packet Skipped: 0

Packet Loss: 8

        Loss Period Length Min/Max: 1/7

Number of successes: 1

Number of failures: 0

Operation time to live: Forever

Everyone's tags (2)
Community Member

IPSLA-ICMP Jitter-Packet loss count

Hello mate !

For how long you left the IP sla running ? 24 hours ?

I would disable session time out in your router, set the IP Sla running for 60 minutes for example and in the meantime i would leave a ping running too with high repetition in the background.

I saw you only had 8 pkt loss....   we need two "tools" running for a good comparison, tried what i proposed and let me know.


Community Member

IPSLA-ICMP Jitter-Packet loss count


Thx for the suggestion,

Frequency is configred as 300 operation will run for evey five min. I was pinging with 10000 packets manually but i never found a drop. But for every opeartion of IPSLA gives me atleast 5 to 20 drops.

Community Member

IPSLA-ICMP Jitter-Packet loss count

  Dear All,

i have also the similar issue,is the packet loss measurement is number of packet or its the avrage percentage value?

CreatePlease to create content