LARTC - Feb 2007 - Problem with HTB and outgoing traffic

Hello,

I''m using a script with tc, to limit my outgoing traffic :
tc qdisc add dev eth0 root handle 1: htb
tc class add dev eth0 parent 1: classid 1:1 htb rate 500kbit burst 6k
tc filter add dev eth0 parent 1: protocol ip prio 1 u32 match ip dst
172.28.54.9 flowid 1:1

I want to test bandwidth with iperf to see if limitation is correct.
Sometimes, I get correct measure for certain rates, but i often get measure
that do not correspond to rate.
For example, if rate is 500kbit, measure is 2000kbit/s...

Can someone help me ?

Thanks,
Olivier


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If you let "burst" get calculated with default settings
(don''t specify
the 6k) does it change anything?
 

Jon Flechsenhaar 
Boeing WNW Team 
Network Services 
(714)-762-1231 
202-E7 

 

________________________________

From: mohican 542003 [mailto:thelastmohican54@gmail.com] 
Sent: Wednesday, February 21, 2007 12:21 AM
To: lartc@mailman.ds9a.nl
Subject: [LARTC] Problem with HTB and outgoing traffic


Hello,

I''m using a script with tc, to limit my outgoing traffic :
tc qdisc add dev eth0 root handle 1: htb
tc class add dev eth0 parent 1: classid 1:1 htb rate 500kbit burst 6k
tc filter add dev eth0 parent 1: protocol ip prio 1 u32 match ip dst
172.28.54.9 flowid 1:1

I want to test bandwidth with iperf to see if limitation is correct.
Sometimes, I get correct measure for certain rates, but i often get
measure that do not correspond to rate. 
For example, if rate is 500kbit, measure is 2000kbit/s...

Can someone help me ?

Thanks,
Olivier







_______________________________________________
LARTC mailing list
LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc