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Hello,
I am trying to create CBQ setup that would classify packets into
"high-priority low-latency" and "low-priority bulk" classes and handle
them appropriately:
#--- root ---
tc qdisc add dev ppp0 root handle 1:0 cbq bandwidth 38400bps avpkt 380 \
mpu 64
#--- class 1:1 for interactive prioritized traffic ---
tc class add dev ppp0 parent 1: classid :1 est 2sec 16sec cbq \
bandwidth 38400bps rate 10000bps allot 580b weight 1 prio 1 \
maxburst 10 avpkt 512
tc qdisc add dev ppp0 parent 1:1 sfq quantum 1500b perturb 5
#--- class 1:3 for the rest of traffic ---
tc class add dev ppp0 parent 1: classid :2 est 1sec 8sec cbq bandwidth \
38400bps rate 28400bps allot 580b weight 1 prio 7 maxburst 5 \
avpkt 1000 defmap 3f
tc qdisc add dev ppp0 parent 1:2 sfq quantum 1500b perturb 5
#--- we will filter according to fwmark ---
tc filter add dev ppp0 parent 1:0 protocol ip prio 90 fw
Strange thing 1:
class cbq 1: root rate 300Kbit (bounded,isolated) prio no-transmit
Root class is created with bandwidth 300Kbit even if I specify
38400bps.
Strange thing 2:
For some reason no packets make it to class 1:2 and they show up in 1:0
instead, which is wrong. Packets that belong 1:1 go there as they should.
Bye Borek
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BOREK LUPOMESKY, network administrator University of J. E. Purkyne
Ceske mladeze 8
WWW: http://www.ujep.cz/~lupomesk/ Usti nad Labem, 40096
IRCnet: Borek @ #usti The Czech Republic
PGP keyid: B6A06AEB ICQ: 10139578 tel: +420-602-376368
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