nanog mailing list archives
Re: Cogent NOC
From: Randy <amps () djlab com>
Date: Wed, 14 Dec 2016 12:15:52 -0800
Walking the line, so to speak. Starting with our directly connected cogent peer. Loss begins at the same hop and carries through to the end host. I'm only using cogentco as an example, but the results are the same anywhere.
[root@mon ~]# ping -c 1000 -f 38.88.249.209 PING 38.88.249.209 (38.88.249.209) 56(84) bytes of data. --- 38.88.249.209 ping statistics --- 1000 packets transmitted, 1000 received, 0% packet loss, time 765msrtt min/avg/max/mdev = 0.422/0.703/3.064/0.273 ms, ipg/ewma 0.765/0.648 ms
[root@mon ~]# ping -c 1000 -f 154.24.36.5 PING 154.24.36.5 (154.24.36.5) 56(84) bytes of data. --- 154.24.36.5 ping statistics --- 1000 packets transmitted, 1000 received, 0% packet loss, time 754msrtt min/avg/max/mdev = 0.523/0.699/2.958/0.190 ms, ipg/ewma 0.755/0.663 ms
[root@mon ~]# ping -c 1000 -f 154.24.36.21 PING 154.24.36.21 (154.24.36.21) 56(84) bytes of data. ..... --- 154.24.36.21 ping statistics --- 1000 packets transmitted, 995 received, 0% packet loss, time 1473msrtt min/avg/max/mdev = 0.718/1.330/3.471/0.461 ms, ipg/ewma 1.475/1.611 ms
[root@mon ~]# ping -c 1000 -f 154.54.42.105 PING 154.54.42.105 (154.54.42.105) 56(84) bytes of data. ........ --- 154.54.42.105 ping statistics --- 1000 packets transmitted, 992 received, 0% packet loss, time 1996msrtt min/avg/max/mdev = 0.884/1.794/6.813/0.626 ms, ipg/ewma 1.998/1.983 ms
[root@mon ~]# ping -c 1000 -f 154.54.7.54 PING 154.54.7.54 (154.54.7.54) 56(84) bytes of data. ..... --- 154.54.7.54 ping statistics --- 1000 packets transmitted, 995 received, 0% packet loss, time 2376msrtt min/avg/max/mdev = 1.202/2.227/5.847/0.901 ms, ipg/ewma 2.378/1.465 ms
[root@mon ~]# ping -c 1000 -f 154.54.0.82 PING 154.54.0.82 (154.54.0.82) 56(84) bytes of data. ......... --- 154.54.0.82 ping statistics --- 1000 packets transmitted, 991 received, 0% packet loss, time 2766msrtt min/avg/max/mdev = 1.178/2.530/6.219/0.831 ms, ipg/ewma 2.769/2.583 ms
[root@mon ~]# ping -c 1000 -f 38.100.128.10 PING 38.100.128.10 (38.100.128.10) 56(84) bytes of data. ..... --- 38.100.128.10 ping statistics --- 1000 packets transmitted, 995 received, 0% packet loss, time 1730msrtt min/avg/max/mdev = 0.835/1.548/19.553/0.717 ms, ipg/ewma 1.732/1.077 ms
After three days of no email response for my ticket, I called and after an hour of my life I want back, front line support cannot reproduce the loss. Final conclusion: "Your host is dropping packets".-- ~Randy
Current thread:
- Cogent NOC Randy (Dec 14)
- Re: Cogent NOC Kurt Kraut (Dec 14)
- Re: Cogent NOC Randy (Dec 14)
- Re: Cogent NOC Ken Chase (Dec 14)
- Re: Cogent NOC Randy (Dec 14)
- Re: Cogent NOC Andrew Paolucci (Dec 14)
- Re: Cogent NOC Mike Hammett (Dec 14)
- Re: Cogent NOC Bryan Holloway (Dec 14)
- Re: Cogent NOC Randy (Dec 14)
- Re: Cogent NOC Bryan Holloway (Dec 14)
- Re: Cogent NOC Randy (Dec 15)
- Re: Cogent NOC Kurt Kraut (Dec 14)