* [LARTC] Qos Slowing down
@ 2003-11-19 8:02 Thomas Switala
2003-11-19 18:27 ` Stef Coene
0 siblings, 1 reply; 2+ messages in thread
From: Thomas Switala @ 2003-11-19 8:02 UTC (permalink / raw)
To: lartc
Hi
I have a bandwidth manager configured on the following system:
RedHat 8.0
Kernel - 2.4.20 (Recompiled and I changed the
SFQ_DEPTH to 512
and the SFQ_HASH 3072
and the PSCHED_CLOCK_SOURCE
= PSCHED_CPU
Patches for the kernel = ebtables
glibc-2.3.2-4.80.6
The system is build to act as a bridge. Qos happens on the outgoing eth0
device to about
175 differant subnets. I am using HTB and I have the following hierachy
Group1
|
-----------------------------------------
|
|
SP1 SP2
|
|
------------- -------------
| | | | | |
| |
cl1 cl2 cl3 cl4 cl5 cl6 cl7 cl8
Al of the cl belong to a service provider (sp) where they are on shared
bandwidth
all of them have a CIR of 1 and a Ceil of 384kbps.
The problem that I am experiencing , and it happens often lately is that the
Qos slows down and
it doesn't pass any traffic at all. I have to restart the whole system
before it starts working again.
If I stop the tc on the device it works as well which rules out the
bridging.
What could be wrong and is Linux going to handle more than 800 sites on a
40Mbps connection ?
--
Warm Regards
Thomas I. Switala
CEO and Lead Systems Architect Genotribe Ltd
--
Cell : +27-82-822-5080 (South-Africa)
+234-803-794-8252 (Nigeria)
IM: genotribe@jabber.genotribe.com (Jabber)
genotribe (Yahoo)
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [LARTC] Qos Slowing down
2003-11-19 8:02 [LARTC] Qos Slowing down Thomas Switala
@ 2003-11-19 18:27 ` Stef Coene
0 siblings, 0 replies; 2+ messages in thread
From: Stef Coene @ 2003-11-19 18:27 UTC (permalink / raw)
To: lartc
On Wednesday 19 November 2003 09:02, Thomas Switala wrote:
> Hi
>
> I have a bandwidth manager configured on the following system:
>
> RedHat 8.0
> Kernel - 2.4.20 (Recompiled and I changed the
> SFQ_DEPTH to 512
> and the SFQ_HASH 3072
> and the PSCHED_CLOCK_SOURCE
> = PSCHED_CPU
>
> Patches for the kernel = ebtables
> glibc-2.3.2-4.80.6
>
> The system is build to act as a bridge. Qos happens on the outgoing eth0
> device to about
> 175 differant subnets. I am using HTB and I have the following hierachy
>
>
> Group1
>
> -----------------------------------------
>
>
> SP1 SP2
>
>
> ------------- -------------
>
>
> cl1 cl2 cl3 cl4 cl5 cl6 cl7
> cl8
>
>
> Al of the cl belong to a service provider (sp) where they are on shared
> bandwidth
> all of them have a CIR of 1 and a Ceil of 384kbps.
>
>
> The problem that I am experiencing , and it happens often lately is that
> the Qos slows down and
> it doesn't pass any traffic at all. I have to restart the whole system
> before it starts working again.
> If I stop the tc on the device it works as well which rules out the
> bridging.
>
> What could be wrong and is Linux going to handle more than 800 sites on a
> 40Mbps connection ?
Do you see any information in the kernel log? And what shows dmesg? Maybe a
spu or memory bottleneck?
Stef
--
stef.coene@docum.org
"Using Linux as bandwidth manager"
http://www.docum.org/
#lartc @ irc.openprojects.net
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