Re: htb parameter problem

Stef Coene
Sat, 08 Mar 2003 19:39:20 -0000

On Friday 07 March 2003 09:53, liang jian wrote:
> Sorry,I means that:
> I configure My out interface bandwidth 10kbps.
> tc qdisc del dev eth1 root
> tc qdisc add dev eth1 root handle 30: htb
> tc class add dev eth1 parent 30: classid 30:1 htb rate 10kbps ceil 10kbps
> tc class add dev eth1 parent 30:1 classid 30:10 htb rate 5kbps ceil 5kbps
> tc class add dev eth1 parent 30:10 classid 30:100 htb rate 2.5kbps ceil
> 5kbps tc class add dev eth1 parent 30:100 classid 30:1000 htb rate 1.25kbps
> ceil 5kbps prio 1 tc qdisc add dev eth1 parent 30:1000 sfq
> tc class add dev eth1 parent 30:100 classid 30:2000 htb rate 1.25kbps ceil
> 5kbps prio 2 tc qdisc add dev eth1 parent 30:2000 sfq
> tc class add dev eth1 parent 30:10 classid 30:200 htb rate 2kbps ceil 5kbps
> tc qdisc add dev eth1 parent 30:200 sfq
> tc class add dev eth1 parent 30:1 classid 30:20 htb rate 5kbps ceil 10kbps
> tc qdisc add dev eth1 parent 30:20 sfq
> tc filter add dev eth1 parent 30: protocol ip prio 1  handle 8 fw classid
> 30:20 tc filter add dev eth1 parent 30: protocol ip prio 1  handle 9 fw
> classid  30:1000 tc filter add dev eth1 parent 30: protocol ip prio 1
> handle 10 fw classid  30:2000
>
> tc -s class ls dev eth1
> class htb 30:1 root rate 80Kbit ceil 80Kbit burst 1701b cburst 1701b
>  Sent 3241503 bytes 55558 pkts (dropped 0, overlimits 0)
>  lended: 0 borrowed: 0 giants: 0
>  tokens: 132320 ctokens: 132320
> class htb 30:10 parent 30:1 rate 40Kbit ceil 40Kbit burst 1650b cburst
> 1650b Sent 3235253 bytes 55462 pkts (dropped 0, overlimits 0)
>  lended: 25964 borrowed: 0 giants: 0
>  tokens: 256479 ctokens: 256479
> class htb 30:100 parent 30:10 rate 20Kbit ceil 40Kbit burst 1624b cburst
> 1650b Sent 3235253 bytes 55462 pkts (dropped 0, overlimits 0)
>  lended: 12826 borrowed: 25964 giants: 0
>  tokens: 504639 ctokens: 256479
> class htb 30:1000 parent 30:100 leaf 802f: prio 1 rate 10Kbit ceil 40Kbit
> burst 1611b cburst 1650b Sent 3025299 bytes 52329 pkts (dropped 0,
> overlimits 0)
>  lended: 14206 borrowed: 38123 giants: 0
>  tokens: 1000960 ctokens: 256479
> class htb 30:2000 parent 30:100 leaf 8030: prio 2 rate 10Kbit ceil 40Kbit
> burst 1611b cburst 1650b Sent 209954 bytes 3133 pkts (dropped 0, overlimits
> 0)
>  lended: 2466 borrowed: 667 giants: 0
>  tokens: -317952 ctokens: 243679
> class htb 30:200 parent 30:10 leaf 8031: prio 0 rate 16Kbit ceil 40Kbit
> burst 1619b cburst 1650b Sent 0 bytes 0 pkts (dropped 0, overlimits 0)
>  lended: 0 borrowed: 0 giants: 0
>  tokens: 647999 ctokens: 264159
> class htb 30:20 parent 30:1 leaf 8032: prio 0 rate 40Kbit ceil 80Kbit burst
> 1650b cburst 1701b Sent 6250 bytes 96 pkts (dropped 0, overlimits 0)
>  lended: 96 borrowed: 0 giants: 0
>  tokens: 256479 ctokens: 132320
>
> http,https traffic from 30:1000 and ftp,ftp-data traffic from 30:2000
> I download kernel from www.kernel.org use NetAnts.I noted that rate
> 200kbps!!!!? question :
> 1. I don''t know why that rate of NetAnts(200kbps) > out
bandwidth(10kbps).
Maybe it was locally cached ?
An other question, are you sure each packets ends in a class?  I never see
your marking rules and you don''t specified a default class.

> 2. I think it maybe dropped packets,but nothing to do .
> 3. tokens: -317952 ctokens: 243679 what''s means about
parameters?what''s
> representation positive number or negative number?
Don''t worry about these numbers :)
ctokens < 0 means the class sent more then the ceil because parent child
classes are asking too much bandwidth.  Same for tokens and rate.

Stef

--

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