It's persistent. We are seeing at 2% to 3% packet "short term" loss but no true loss of packets on two hops or more. Where we are running over three routers and six radios it's really ugly. There are SNMP packets and get the lowest level of priority across busy customer circuits. Actual ping rates from the server running the IM Server do not correlate with what IM is reporting.
ns3:/home/mike# ping 216.169.6.140 PING 216.169.6.140 (216.169.6.140): 56 data bytes 64 bytes from 216.169.6.140: icmp_seq=0 ttl=61 time=55.2 ms 64 bytes from 216.169.6.140: icmp_seq=1 ttl=61 time=54.9 ms 64 bytes from 216.169.6.140: icmp_seq=2 ttl=61 time=53.8 ms 64 bytes from 216.169.6.140: icmp_seq=3 ttl=61 time=54.6 ms 64 bytes from 216.169.6.140: icmp_seq=4 ttl=61 time=54.7 ms ns3:/home/mike# traceroute 216.169.6.140 traceroute to 216.169.6.140 (216.169.6.140), 30 hops max, 38 byte packets 1 fe0/0/0-core.netwright.net (216.169.1.246) 0.59 ms 0.49 ms 0.40 ms 2 s1-t1-jax.luther.com (216.169.1.18) 22.046 ms 22.076 ms 22.045 ms 3 cutshaw1750.luther.com (216.169.6.6) 46.740 ms 46.126 ms 45.658 ms 4 216.169.6.140 (216.169.6.140) 51.749 ms 53.282 ms 52.322 ms -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of William W. Fisher Sent: Wednesday, August 16, 2006 4:37 PM To: InterMapper Discussion Subject: Re: [IM-Talk] InterMapper 4.5 alpha-test version Short term packet loss is now tracked in InterMapper 4.5, and can trigger alarms. It's the packet loss over the last 100 exchanges. Initially, it should track the total packet loss that InterMapper has always reported. Could it be there are false reports of high short- term packet when you are first starting up InterMapper because the number of initial requests is small? What is the probe type of the devices that are reporting packet loss? Regards, Bill Fisher Dartware, LLC On Aug 16, 2006, at 4:10 PM, Mike Lieberman wrote: > We have installed the code on both a Windows and a Debian Linux > Server. We note that many devices are reporting warnings of short term > packet loss. We have never seen these errors before. In all cases the > devices the servers are complaining about are at least two hops away. > We are seeing not actual packet loss. Just the "short term' loss. ____________________________________________________________________ List archives: http://www.mail-archive.com/intermapper-talk%40list.dartware.com/ To unsubscribe: send email to: [EMAIL PROTECTED] ____________________________________________________________________ List archives: http://www.mail-archive.com/intermapper-talk%40list.dartware.com/ To unsubscribe: send email to: [EMAIL PROTECTED]
