Hi,
there is something I'm not able to understand about HTB statistics.
Why the qdisc show show how many packets are overlimits but in the
classes there are always 0 packets overlimits or dropped?I try to expain with a simple example. I create a qdisc htb with only a class and then i do a lot of traffic.
pc-innocenti:~# tc qdisc add dev eth0 parent root handle 1: htb default 10
pc-innocenti:~# tc class add dev eth0 parent 1:1 classid 1:10 htb rate
1kbit cei l 1kbit quantum 2000
The qdisc show that there are packets overlimits: pc-innocenti:~# tc -s -d qdisc show qdisc htb 1: dev eth0 r2q 10 default 10 direct_packets_stat 1145 ver 3.17 Sent 339419 bytes 1533 pkts (dropped 0, overlimits 402) backlog 370p
The class instead always show 0 packet overlimits or dropped. pc-innocenti:~# tc -s -d class show dev eth0 class htb 1:10 root prio 0 quantum 2000 rate 1000bit ceil 1000bit burst 1600b/8 mpu 0b overhead 0b cburst 1600b/8 mpu 0b overhead 0b level 0 Sent 66307 bytes 480 pkts (dropped 0, overlimits 0) rate 912bit backlog 448p lended: 32 borrowed: 0 giants: 0 tokens: -13238252 ctokens: -13238252
-- ********************************************************************** Marco Innocenti Gruppo Infrastruttura e Sicurezza CINECA phone:+39 0516171553 / fax:+39 0516132198 Via Magnanelli 6/3 e-mail: innocenti@xxxxxxxxx 40033 Casalecchio di Reno Bologna (Italia) **********************************************************************
-- ********************************************************************** Marco Innocenti Gruppo Infrastruttura e Sicurezza CINECA phone:+39 0516171553 / fax:+39 0516132198 Via Magnanelli 6/3 e-mail: innocenti@xxxxxxxxx 40033 Casalecchio di Reno Bologna (Italia) ********************************************************************** _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
