El Wednesday 26 April 2006 13:00, Luke McConnell escribió: > Hi, > > I'm trying to get HTB working correctly on Centos4 (RHEL-based) with > kernel 2.6.9-34.EL. I have two gigabit network interfaces bridged > together and I have created the following: > > tc qdisc add dev eth2 root handle 1: htb default 1 r2q 8000 > tc class add dev eth2 parent 1: classid 1:1 htb rate 100Mbit burst 24k > cburst 24k > > (I have been trying different parameters). > > The network is passing ~80MBits of traffic but HTB is not seeing the > rate correctly (which obviously causes problems when I try to shape a > sub-set of the traffic). These are approx 1 second apart: > > [root@ ~]# tc -s -d class sh dev eth2 > class htb 1:1 root prio 0 quantum 1562 rate 100Mbit ceil 100Mbit burst > 24Kb/8 mpu 0b overhead 0b cburst 24Kb/8 mpu 0b overhead 0b level 0 > Sent 654872932 bytes 830973 pkts (dropped 0, overlimits 0 requeues 0) > rate 7827086bit 9941pps > lended: 830973 borrowed: 0 giants: 0 > tokens: 1479 ctokens: 1479 > > [root@ ~]# tc -s -d class sh dev eth2 > class htb 1:1 root prio 0 quantum 1562 rate 100Mbit ceil 100Mbit burst > 24Kb/8 mpu 0b overhead 0b cburst 24Kb/8 mpu 0b overhead 0b level 0 > Sent 663902498 bytes 842747 pkts (dropped 0, overlimits 0 requeues 0) > rate 7827086bit 9941pps > lended: 842747 borrowed: 0 giants: 0 > tokens: 1527 ctokens: 1527 > > That's a transfer of around 9MBytes, yet HTB is only reporting just > under 8Mbits/sec. Has anyone got any suggestions for me to try? CentOS's tc version(iproute2-ss040831) is known to have buggy rates(at least for htb). You have to multiply by 8 the rate value. You can use htb-stats[1] script made bye jjo ciarlante, it is bery usefull to see real-time htb class rates, this script has a (soft)fix for the bug in CentOS and display htb rates correctly. [1] http://freshmeat.net/projects/htb-stats/ -- Luciano _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
