TalkTalk and DSCP and 19 second latency: Difference between revisions

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 The customer put this down to something odd on their network until they finally decided to investigate further.
-=== 19 second latency ===
-It's amazing to see 19 second latency - this means that a device on TalkTalk's network is storing packets for this amount of time before passing them on. You would usually expect the packets to be dropped (packet loss) - but packetloss has been very low in our tests.
 == The Scope ==
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 * '''-s 1400'''   Setting the packet size to 1400 bytes - quite large. If we reduce this, eg to 700 bytes then it takes longer for the latency to rise. Setting it to 600 and it seems the traffic is low enough not to be caught by TalkTalk's traffic shaping policy
 * '''-c 100'''   Just to 100 pings this time
+=== 19 second latency ===
+It's amazing to see 19 second latency - this means that a device on TalkTalk's network is storing packets for this amount of time before passing them on. You would usually expect the packets to be dropped (packet loss) - but packetloss has been very low in our tests.
 === pcaps ===