Re: [LARTC] Fairness queuing across a range of IP addresses

[Andy Furniss <lists@andyfurniss.entadsl.com>]

Oscar Mechanic wrote:
> On Tue, 2007-03-20 at 20:09 +0100, Ales Klok wrote:
>> Derek Sims wrote:
>>> I have a block of IP addresses (2048) used for ADSL connections to 
>>> customers.
>>>
>>> In order to provide a fair slice of available bandwidth on the 
>>> contended services I would like to be able to set up some kind of SFQ 
>>> filter, but using a hash of the destination IP address rather than the 
>>> the full source and destination ip and port. This would be done at the 
>>> Internet side gateway for traffic being sent towards the customer's IP 
>>> address.
>>>
>>> Can anybody suggest how this could be done with qdiscs?
>>>
>>> TIA
>>>
>>> Derek
>> Hi Derek, if i understand what you wanna do then i think you are looking 
>> for ESFQ. With ESFQ you can choose hash type from classic, dest IP or 
>> src IP.
>> /ak
> 
> As an ISP with 800 clients I found the hashs difficult to manage after
> time. Also when dealing with clients who want subnet /29 mapping back to
> a billing entry was hard. I wrote some PHP so other could use web front
> end and used ipset (both hash and net sets) and combining with marks to
> do the traffic control for different levels of service. As the client
> requirements grew changed this ended in allot of panic PHP. So i use 3rd
> party vendor device.
> 
> My advice would be to use 2 devices 1 to mark traffic and do access
> control and use ds_shed to control traffic on other device. I think I
> went wrong in trying to do all on one device.

The latest esfq used jhash - so should be better than the old hash.

http://fatooh.org/esfq-2.6/

Andy.

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