TalkTalk and DSCP and 19 second latency: Difference between revisions
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=TL;DR=
For some reason, TalkTalk's kit is reading IP DSCP marks from IPv4 packets inside PPPoE, and then putting them in a funny queuing setup which results in latency quickly increasing to over 19 seconds on the route from the End User to A&A:
 
1408 bytes from x.x.x.x: icmp_seq=986 ttl=63 time='''19084.589 ms'''
Retrieved from ‘http://support.aa.net.uk/TalkTalk_and_DSCP_and_19_second_latency’