Hello, My name is Adam and I try to get PQ by means of CBQ. Sorry for writing about such a problems but I struggle with this for 2 weeks .. I have searched the LARTC archive till 2000 and everyone say using priorities lowers delay.. but it does NOT. I can NOT see ANY difference when using priorities in CBQ (especially from the delay point of view!!!!!!!!) - in comparioson to CBQ witohout priorities. I did dozens of tests and CBQ and for packets less than 512 bytes delay is saw tooth chart changing (oscillating) from less than 1ms to 8ms periodically. . Is there something wrong with my configuration??? My configuration is like this: link bandwidth: 2Mbps 2 queues: priority - bounded to 200kbps best effort - at least 1.3Mbps (+ the rest of the link that is unused) traffic generated: priority - ca. 200kbps but less than (periodic, for different packet sizes but rate constant: 96,128,256,512Bytes) best effort - 2Mbps (periodic, 1000Bytes packets) (so the summ of both flows is always MORE that link bandwidth which is 2Mbps) My configuration is like this: # Root tc qdisc add dev eth0 root handle 1:0 cbq bandwidth 100Mbit avpkt 1000 cell 8 mpu 1500 # Main Class tc class add dev eth0 parent 1:0 classid 1:1 cbq bandwidth 100Mbit rate 1000kbit maxburst 10 allot 1000 cell 8 avpkt 1000 bounded isolated # Prio tc class add dev eth0 parent 1:1 classid 1:2 cbq bandwidth 100Mbit rate 100Kbit weight 10Kbit prio 1 allot 1000 cell 8 maxburst 10 avpkt 1000 # Best effort tc class add dev eth0 parent 1:1 classid 1:3 cbq bandwidth 100Mbit rate 650Kbit weight 65Kbit prio 2 allot 1000 cell 8 maxburst 10 avpkt 1000 #IPv4 filters tc filter add dev eth0 parent 1:0 protocol ip prio 1 u32 match ip src 192.168.2.2 classid 1:2 tc filter add dev eth0 parent 1:0 protocol ip prio 3 u32 match ip src 192.168.3.2 classid 1:3 please tell me if the weight parameter can mess with prio value? regards adam _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
