Regarding Queue Management

Regarding Queue Management

[ANKUR SHETH]

Hello all,

Can you anybody let me know how can I manage the buffer size using
Linux tc utility, as I tried to understand Linux tc but was not able
to figure out the way for managing the buffer size for each queue
configured for each port of the switch.

I read somewhere that txqueuelen can be used for reducing the size of
the queue for each port which is 1000 by default, but could not verify
it.

I am able to shape the traffic as per the bandwidth requirements by
using minimum and maximum rates using tc linux and htb, but I am not
able to figure out the way for buffer size.

I appreciate your time and cooperation for my research.

Regards,
Ankur

Re: Regarding Queue Management

[Andy Furniss]

ANKUR SHETH wrote:
> Hello all,
> 
> Can you anybody let me know how can I manage the buffer size using
> Linux tc utility, as I tried to understand Linux tc but was not able
> to figure out the way for managing the buffer size for each queue
> configured for each port of the switch.
> 
> I read somewhere that txqueuelen can be used for reducing the size of
> the queue for each port which is 1000 by default, but could not verify
> it.
> 
> I am able to shape the traffic as per the bandwidth requirements by
> using minimum and maximum rates using tc linux and htb, but I am not
> able to figure out the way for buffer size.

You can add bfifo or pfifo to your htb class(es) and set the size in 
bytes/packets.

man tc-bfifo