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TalkTalk and DSCP and 19 second latency: Difference between revisions
TalkTalk and DSCP and 19 second latency (view source)
Revision as of 19:32, 7 December 2021
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== The cause ==
pcaps revelealed that the Aruba access point was marking some traffic with the DSCP flag CS6, and when there was enough traffic latency would increasingly build up.
=== Show me ===
Here is 100 pings - though to keep the page short, I've included only every 10th ping, but you get the idea:
PING 81.187.81.187 (81.187.81.187): 1400 data bytes
1408 bytes from 81.187.81.187: icmp_seq=0 ttl=63 time=10.234 ms
Request timeout for icmp_seq 10
1408 bytes from 81.187.81.187: icmp_seq=10 ttl=63 time=37.160 ms
1408 bytes from 81.187.81.187: icmp_seq=11 ttl=63 time=16.935 ms
1408 bytes from 81.187.81.187: icmp_seq=20 ttl=63 time=278.065 ms
1408 bytes from 81.187.81.187: icmp_seq=30 ttl=63 time=386.798 ms
Request timeout for icmp_seq 70
1408 bytes from 81.187.81.187: icmp_seq=40 ttl=63 time=793.062 ms
Request timeout for icmp_seq 80
1408 bytes from 81.187.81.187: icmp_seq=50 ttl=63 time=836.497 ms
1408 bytes from 81.187.81.187: icmp_seq=60 ttl=63 time=1040.796 ms
1408 bytes from 81.187.81.187: icmp_seq=70 ttl=63 time=1453.866 ms
1408 bytes from 81.187.81.187: icmp_seq=80 ttl=63 time=1461.298 ms
1408 bytes from 81.187.81.187: icmp_seq=90 ttl=63 time=1935.554 ms
1408 bytes from 81.187.81.187: icmp_seq=99 ttl=63 time=1978.546 ms
100 packets transmitted, 100 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 9.734/929.728/2047.155/628.466 ms
=== What's DCSP and CS6? ===
== Things that were tried==
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