search for: vcmux

...ch probably doesn''t help either. I assume it is htb that calls esfq to dequeue a packet - but I don''t know. For the test my DWIFLIMIT bandwidth was set at 51kbit/s which is 10% of my bandwidth. My mtu is set at 1478 as it''s slightly more efficient for adsl using pppoa/vcmux in the UK. I used - $TC class add dev $DWIF parent 1:2 classid 1:21 htb rate $[$DWIFLIMIT/2]kbit \ ceil ${DWIFLIMIT}kbit burst 0b cburst 0b mtu 1478 quantum 1478 prio 1 $TC qdisc add dev $DWIF parent 1:21 handle 21: esfq perturb 0 hash classic limit 10 This is part of tc -s -d clas...

I have been trying to optimise my ADSL connections for VOIP. Funny things were happening - for example increasing the ping packet size by 50% had no effect, but then adding one byte had a major effect. It took me a while to figure out that I was seeing the effects of the fixed ATM cell size. This is probably obvious to some of you. For the rest: ADSL uses ATM as its transport. An ATM