We are a Cisco shop, so we use "ip sla" feature of newer IOS releases with CiscoWorks LMS. Netflow is useful for trafic monitoring, but for latency and jitter, the cisco featureset is really nice.
For example, between two of our voice gateway boxes (running sip trunking between them) in NY & SF: rtr-nyvoip#show ip sla statistics aggregated 1 IPSLAs aggregated statistics IPSLA operation id: 1 Start Time Index: .16:15:07.749 EDT Tue Jun 16 2009 Type of operation: udp-jitter Voice Scores: MinOfICPIF: 11 MaxOfICPIF: 11 MinOfMOS: 4.6 MaxOfMOS: 4.6 RTT Values: Number Of RTT: 18000 RTT Min/Avg/Max: 91/91/96 milliseconds Latency one-way time: Number of Latency one-way Samples: 0 Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds Jitter Time: Number of SD Jitter Samples: 17982 Number of DS Jitter Samples: 17982 Source to Destination Jitter Min/Avg/Max: 0/1/4 milliseconds Destination to Source Jitter Min/Avg/Max: 0/1/4 milliseconds Packet Loss Values: Loss Source to Destination: 0 Loss Destination to Source: 0 Out Of Sequence: 0 Tail Drop: 0 Packet Late Arrival: 0 Packet Skipped: 0 Number of successes: 18 Number of failures: 0 Start Time Index: .15:15:07.749 EDT Tue Jun 16 2009 Type of operation: udp-jitter Voice Scores: MinOfICPIF: 11 MaxOfICPIF: 11 MinOfMOS: 4.6 MaxOfMOS: 4.6 RTT Values: Number Of RTT: 60000 RTT Min/Avg/Max: 91/91/103 milliseconds Latency one-way time: Number of Latency one-way Samples: 0 Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds Jitter Time: Number of SD Jitter Samples: 59940 Number of DS Jitter Samples: 59940 Source to Destination Jitter Min/Avg/Max: 0/1/11 milliseconds Destination to Source Jitter Min/Avg/Max: 0/1/7 milliseconds Packet Loss Values: Loss Source to Destination: 0 Loss Destination to Source: 0 Out Of Sequence: 0 Tail Drop: 0 Packet Late Arrival: 0 Packet Skipped: 0 Number of successes: 60 Number of failures: 0 The config is: ip sla responder ip sla logging traps ip sla 1 udp-jitter x.x.x.x 12420 source-ip x.x.x.x codec g729a ip sla schedule 1 life forever start-time now ---- Matthew Huff | One Manhattanville Rd OTA Management LLC | Purchase, NY 10577 http://www.ox.com | Phone: 914-460-4039 aim: matthewbhuff | Fax: 914-460-4139 > -----Original Message----- > From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp- > boun...@puck.nether.net] On Behalf Of harbor235 > Sent: Tuesday, June 16, 2009 3:46 PM > To: cisco-nsp@puck.nether.net > Subject: [c-nsp] Network Perefromance > > I wanted to ping everyone on tools they were using to understand the > performace of their > network, specifically, measuring packet loss, latency, and jitter. > > mike > _______________________________________________ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/
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