Hello,
I have some strange problems with shaping. Now I'm testing Linux as
shaping bridge. Redhat Linux 7.3, kernel plain 2.4.23 with latest HTB patch
from devik and PSCHED_CLOCK_SOURCE changed to PSCHED_CPU.
Some output is at the end of the message. What is strange that according
to interface statistics traffic is shaped more or less OK.
48431590 - 48079196 = 352394 (~275kbps)
But byte count reported by tc is lower.
39061384 - 38778938 = 282446 (~220kbps)
But when I try to look into packets with tcpdump:
# tcpdump -c 10000 | fgrep -v $ip | wc -l
tcpdump: listening on br0
5
So only 5 packets should go not through filter.
What I'm doing wrong?
Mindaugas
----------------------------------------------------------------------------
-
# for w in "qdisc" "class" "filter"; do ./tc -s -d $w show dev eth0; echo;
done
qdisc sfq 200: limit 128p quantum 1514b flows 128/1024 perturb 10sec
Sent 59048002 bytes 942023 pkts (dropped 52103102, overlimits 0)
backlog 126p
qdisc htb 1: r2q 10 default 1 direct_packets_stat 756 ver 3.14
Sent 59211007 bytes 942778 pkts (dropped 52103102, overlimits 53038514)
backlog 126p
class htb 1:200 root leaf 200: prio 0 quantum 3276 rate 256Kbit ceil 256Kbit
burst 1926b/8 mpu 0b overhead 0b cburst 1926b/8 mpu 0b overhead 0b level 0
Sent 59049862 bytes 942054 pkts (dropped 52103123, overlimits 0)
rate 30227bps 394pps backlog 126p
lended: 941933 borrowed: 0 giants: 0
tokens: -81030 ctokens: -81030
filter parent 1: protocol ip pref 1 u32
filter parent 1: protocol ip pref 1 u32 fh 800: ht divisor 1
filter parent 1: protocol ip pref 1 u32 fh 800::800 order 2048 key ht 800
bkt 0 flowid 1:200
match d5e2a020/fffffffc at 12
----------------------------------------------------------------------------
-
$TC qdisc del dev eth0 root
$TC qdisc del dev eth1 root
$TC qdisc add dev eth0 root handle 1: htb default 1
$TC qdisc add dev eth1 root handle 1: htb default 1
$TC filter add dev eth0 parent 1: protocol ip prio 1 u32 match u32
0x${ip_hex} 0x${netmask_hex} at 12 flowid 1:$num
$TC filter add dev eth1 parent 1: protocol ip prio 1 u32 match u32
0x${ip_hex} 0x${netmask_hex} at 16 flowid 1:$num
----------------------------------------------------------------------------
-
export E=eth0;./tc -s qdisc show dev $E;cat /proc/net/dev | fgrep $E;sleep
10;./tc -s qdisc show dev $E;cat /proc/net/dev | fgrep $E
qdisc sfq 200: limit 128p quantum 1514b perturb 10sec
Sent 38778938 bytes 621714 pkts (dropped 34927008, overlimits 0)
backlog 126p
qdisc htb 1: r2q 10 default 1 direct_packets_stat 465
Sent 38904418 bytes 622179 pkts (dropped 34927008, overlimits 35550074)
backlog 126p
eth0:1374508678 12363563 0 0 0 0 0 139
48079196 619053 37 0 0 42449 0 0
qdisc sfq 200: limit 128p quantum 1514b perturb 10sec
Sent 39061384 bytes 626322 pkts (dropped 35202131, overlimits 0)
backlog 126p
qdisc htb 1: r2q 10 default 1 direct_packets_stat 467
Sent 39187428 bytes 626789 pkts (dropped 35202131, overlimits 35829953)
backlog 126p
eth0:1382616092 12439928 0 0 0 0 0 140
48431590 623540 37 0 0 42721 0 0
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