[LARTC] HTB and ATM patch

["Edouard Thuleau" <thuleau@gmail.com>]

Hi all,

I patch my kernel (2.6.17) and my tc (iproute2-2.6.18-061002) utilitie for
an accurate packet scheduling on an ATM link.
I configure my HTB hierarchy on the upload of the link and try with
differents flows.

It works correctly but in some of case I lose about 50% of my bandwith.
I use the overhead (42) configuration for my link (PPPoE, VC/LLC) indicate
in the documentation.
My question is, how this hoverhead value is calculate ?

I try to separate the streams with the lentgh of the packet in differents
classes and put a specific overhead for each one, but I don't know how
calculate it. Do you think it's a good solution ?


Is it necessary to put the atm, nohyst options and configure the overhead

for the mother class ?

Thanks,
Edouard.
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