Hi,
I am trying to write a script that will create a class and will add specific Ip
address to that class.
let me write commands:
tc qdisc del dev eth0 root
tc qdisc add dev eth0 root handle 1: htb default 12
tc class add dev eth0 parent 1 classid 1:1 htb rate 10mbit ceil 10mbit
tc qdisc add dev eth0 parent 1:1 sfq
tc class add dev eth0 parent 1:1 classid 1:21 htb rate 128kbit ceil 128kbit
tc filter add dev eth0 parent 1: protocol ip prio 1 u32 \match ip dst
172.18.5.74 classid 1:21
tc class add dev eth0 parent 1:1 classid 1:22 htb rate 128kbit ceil 128kbit
tc filter add dev eth0 parent 1: protocol ip prio 1 u32 \match ip dst
193.140.57.150 classid 1:22
tc class add dev eth0 parent 1:1 classid 1:23 htb rate 128kbit ceil 128kbit
tc filter add dev eth0 parent 1: protocol ip prio 1 u32 \match ip dst
172.18.5.74 classid 1:23
tc class add dev eth0 parent 1:1 classid 1:24 htb rate 128kbit ceil 128kbit
tc filter add dev eth0 parent 1: protocol ip prio 1 u32 \match ip dst
172.18.5.74 classid 1:24
tc class add dev eth0 parent 1:1 classid 1:25 htb rate 128kbit ceil 128kbit
tc filter add dev eth0 parent 1: protocol ip prio 1 u32 \match ip dst
172.18.5.74 classid 1:25
As you see above I create 5 cladd for 5 different Ip address and limit download
traffic to 128 kbps
but when I check statistics below i see that only a few classes work properly.
others continue to download above 128kbps even 512kbps. is there any idea?
[root@fwr router]# tc -s class show dev eth0
class htb 1:22 parent 1:1 prio 0 rate 128Kbit ceil 128Kbit burst 1615b cburst
1615b
Sent 6068801 bytes 14516 pkts (dropped 0, overlimits 0 requeues 0)
rate 42bit
lended: 14516 borrowed: 0 giants: 0
tokens: 95744 ctokens: 95744
class htb 1:1 root rate 10Mbit ceil 10Mbit burst 2848b cburst 2848b
Sent 25851580 bytes 28255 pkts (dropped 0, overlimits 0 requeues 0)
rate 16072bit 11pps
lended: 0 borrowed: 0 giants: 0
tokens: -142 ctokens: -142
class htb 1:23 parent 1:1 prio 0 rate 128Kbit ceil 128Kbit burst 1615b cburst
1615b
Sent 19799433 bytes 13750 pkts (dropped 0, overlimits 0 requeues 0)
rate 16031bit 10pps backlog 11p
lended: 13739 borrowed: 0 giants: 0
tokens: -193536 ctokens: -193536
class htb 1:21 parent 1:1 prio 0 rate 128Kbit ceil 128Kbit burst 1615b cburst
1615b
Sent 0 bytes 0 pkts (dropped 0, overlimits 0 requeues 0)
lended: 0 borrowed: 0 giants: 0
tokens: 103424 ctokens: 103424
class htb 1:24 parent 1:1 prio 0 rate 128Kbit ceil 128Kbit burst 1615b cburst
1615b
Sent 0 bytes 0 pkts (dropped 0, overlimits 0 requeues 0)
lended: 0 borrowed: 0 giants: 0
tokens: 103424 ctokens: 103424
class htb 1:25 parent 1:1 prio 0 rate 128Kbit ceil 128Kbit burst 1615b cburst
1615b
Sent 0 bytes 0 pkts (dropped 0, overlimits 0 requeues 0)
lended: 0 borrowed: 0 giants: 0
tokens: 103424 ctokens: 103424
Also you can see below tc filter output
[root@fwr router]# tc filter show dev eth0
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 1:21
match ac12054a/ffffffff at 16
filter parent 1: protocol ip pref 1 u32 fh 800::801 order 2049 key ht 800 bkt 0
flowid 1:22
match c18c3996/ffffffff at 16
filter parent 1: protocol ip pref 1 u32 fh 800::802 order 2050 key ht 800 bkt 0
flowid 1:23
match c18c395a/ffffffff at 16
filter parent 1: protocol ip pref 1 u32 fh 800::803 order 2051 key ht 800 bkt 0
flowid 1:24
match ac101055/ffffffff at 16
filter parent 1: protocol ip pref 1 u32 fh 800::804 order 2052 key ht 800 bkt 0
flowid 1:25
match ac10113b/ffffffff at 16
Taylan KIRAN
Network&System Specialist
Koc University
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