* [LARTC] Excess Bandwidth
@ 2004-10-08 20:37 Ronaldo Z. Afonso
2004-10-09 1:45 ` Daniel Frederiksen
2004-10-14 8:14 ` Ronaldo Z. Afonso
0 siblings, 2 replies; 3+ messages in thread
From: Ronaldo Z. Afonso @ 2004-10-08 20:37 UTC (permalink / raw)
To: lartc
Hi,
I'm trying to configure QoS on my linux in the following manner:
I have a main link with 64K, so I divided it in 3 classes of 18K, 14K
and 9K with an excess (not used for classified traffic, just to be
shared) of 23K. This excess should be distributed proportonally among
the 3 classes, that is, the class that has more rate should borrow more
bandwidth. What is happening is just the opposite, the class that has
less rate is borrowing more bandwidth. A representation of my
"hierarchical class layout" is as follow:
root - 64K
A - 18K B - 14K C - 9K
I have read some documentation that says it should work exactly in
this in way, but it is not happening in my environment. All the tests I
did show me that the class with less rate is borrow more bandwidth.
Can anyone help me?
--
______________________________
Ronaldo Z. Afonso
Projetista de Software Jr.
Cyclades Brasil
ronaldo.afonso@cyclades.com.br
Phone: 55 11 5033-3361
Fax: 55 11 5033-3388
www.cyclades.com.br
"Everywhere with Linux"
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [LARTC] Excess Bandwidth
2004-10-08 20:37 [LARTC] Excess Bandwidth Ronaldo Z. Afonso
@ 2004-10-09 1:45 ` Daniel Frederiksen
2004-10-14 8:14 ` Ronaldo Z. Afonso
1 sibling, 0 replies; 3+ messages in thread
From: Daniel Frederiksen @ 2004-10-09 1:45 UTC (permalink / raw)
To: lartc
Hej Ronaldo
Remember to prioritize the excess bandwidth. If you are using the HTB
read the bottom section of the manual.:
http://luxik.cdi.cz/~devik/qos/htb/manual/userg.htm#prio
The "prio" parameter will help you with your problem, give the child
classes a priority from 1-3, where 1 is the highest priority and 3 is
the lowest.
On Fri, 2004-10-08 at 22:37, Ronaldo Z. Afonso wrote:
> Hi,
>
> I'm trying to configure QoS on my linux in the following manner:
> I have a main link with 64K, so I divided it in 3 classes of 18K, 14K
> and 9K with an excess (not used for classified traffic, just to be
> shared) of 23K. This excess should be distributed proportonally among
> the 3 classes, that is, the class that has more rate should borrow more
> bandwidth. What is happening is just the opposite, the class that has
> less rate is borrowing more bandwidth. A representation of my
> "hierarchical class layout" is as follow:
>
> root - 64K
>
> A - 18K B - 14K C - 9K
>
> I have read some documentation that says it should work exactly in
> this in way, but it is not happening in my environment. All the tests I
> did show me that the class with less rate is borrow more bandwidth.
> Can anyone help me?
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [LARTC] Excess Bandwidth
2004-10-08 20:37 [LARTC] Excess Bandwidth Ronaldo Z. Afonso
2004-10-09 1:45 ` Daniel Frederiksen
@ 2004-10-14 8:14 ` Ronaldo Z. Afonso
1 sibling, 0 replies; 3+ messages in thread
From: Ronaldo Z. Afonso @ 2004-10-14 8:14 UTC (permalink / raw)
To: lartc
Sorry for my insistence, but I have tried to use different "prios"
based on the class rate and what happens is that the class that has more
rate, and in this case more priority, will borrow almost all the excess
bandwidth.
Like I said, I have read that htb share its excess bandwidth
proportionaly to the class rates its childrens are assigned.
I made a test and based on the statistics of "tc ouput" we can see
that the class that has more rate "borrowed" less of the excess bandwidth.
Another question is what is the meaning of "lended" in htb? To me it
is a little bit confusing.
[root@teste_hsbc htb]# tc -s -d class show dev pvc0
class htb 1:2 root rate 512Kbit ceil 512Kbit burst 2254b/8 mpu 0b cburst
2254b/8 mpu 0b level 7
Sent 7543402 bytes 5031 pkts (dropped 0, overlimits 0)
rate 37748bps 25pps
lended: 2112 borrowed: 0 giants: 0
tokens: 27488 ctokens: 27488
class htb 1:3 parent 1:2 leaf 3: prio 1 quantum 1000 rate 50Kbit ceil
512Kbit burst 1664b/8 mpu 0b cburst 2254b/8 mpu 0b level 0
Sent 2068254 bytes 1377 pkts (dropped 2988, overlimits 0)
rate 11268bps 7pps
lended: 493 borrowed: 884 giants: 0
tokens: -326656 ctokens: 9488
class htb 1:4 parent 1:2 leaf 4: prio 1 quantum 1280 rate 100Kbit ceil
512Kbit burst 1728b/8 mpu 0b cburst 2254b/8 mpu 0b level 0
Sent 2588080 bytes 1728 pkts (dropped 2644, overlimits 0)
rate 11335bps 7pps
lended: 980 borrowed: 748 giants: 0
tokens: 73728 ctokens: 20988
class htb 1:5 parent 1:2 leaf 5: prio 1 quantum 1920 rate 150Kbit ceil
512Kbit burst 1791b/8 mpu 0b cburst 2254b/8 mpu 0b level 0
Sent 2887068 bytes 1926 pkts (dropped 2447, overlimits 0)
rate 11696bps 7pps
lended: 1446 borrowed: 480 giants: 0
tokens: 74070 ctokens: 27488
Daniel Frederiksen wrote:
>Hej Ronaldo
>
>Remember to prioritize the excess bandwidth. If you are using the HTB
>read the bottom section of the manual.:
>http://luxik.cdi.cz/~devik/qos/htb/manual/userg.htm#prio
>
>The "prio" parameter will help you with your problem, give the child
>classes a priority from 1-3, where 1 is the highest priority and 3 is
>the lowest.
>
>On Fri, 2004-10-08 at 22:37, Ronaldo Z. Afonso wrote:
>
>
>> Hi,
>>
>> I'm trying to configure QoS on my linux in the following manner:
>> I have a main link with 64K, so I divided it in 3 classes of 18K, 14K
>>and 9K with an excess (not used for classified traffic, just to be
>>shared) of 23K. This excess should be distributed proportonally among
>>the 3 classes, that is, the class that has more rate should borrow more
>>bandwidth. What is happening is just the opposite, the class that has
>>less rate is borrowing more bandwidth. A representation of my
>>"hierarchical class layout" is as follow:
>>
>> root - 64K
>>
>> A - 18K B - 14K C - 9K
>>
>> I have read some documentation that says it should work exactly in
>>this in way, but it is not happening in my environment. All the tests I
>>did show me that the class with less rate is borrow more bandwidth.
>> Can anyone help me?
>>
>>
>
>_______________________________________________
>LARTC mailing list / LARTC@mailman.ds9a.nl
>http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
>
>
--
______________________________
Ronaldo Z. Afonso
Projetista de Software Jr.
Cyclades Brasil
ronaldo.afonso@cyclades.com.br
Phone: 55 11 5033-3361
Fax: 55 11 5033-3388
www.cyclades.com.br
"Everywhere with Linux"
_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
^ permalink raw reply [flat|nested] 3+ messages in thread
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2004-10-08 20:37 [LARTC] Excess Bandwidth Ronaldo Z. Afonso
2004-10-09 1:45 ` Daniel Frederiksen
2004-10-14 8:14 ` Ronaldo Z. Afonso
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