QoS for ADSL customers

Thu Dec 1 13:41:18 UTC 2005

I got an off-list reply about using Nbar, but I've never
seen a class map that would match torrent.

-e 

> -----Original Message-----
> From: owner-nanog at merit.edu [mailto:owner-nanog at merit.edu]
On 
> Behalf Of Kim Onnel
> Sent: Thursday, December 01, 2005 7:12 AM
> To: Ejay Hire
> Cc: NANGO
> Subject: Re: QoS for ADSL customers
> 
> Our ADSL customers traffic is 3 OC3 worth of traffic, I
dont 
> think our management would buy the idea.
> 
> thanks
> 
> 
> On 12/1/05, Ejay Hire <ejay.hire at isdn.net> wrote:
> 
> 	Hello.
> 	
> 	Going back to your original question, how to keep
from
> 	saturating the network with residential users using
> 	bittorrent/edonkey et al, while suffocating business
> 	customers.  Here goes.
> 	
> 	Netfilter/IpTables (and a slew of commercial
products I'm 
> 	sure) has a Layer 7 traffic classifier, meaning it
can
> 	identify specific file transfer applications and set
a
> 	DiffServ bit.  This means it can tell between a real
http
> 	request and a edonkey transfer, even if they are
both using 
> 	http.  It also has rate-limiting capability.  So...
If you
> 	pass all of the traffic destined for your DSL
customers
> 	through an iptables box (single point of failure)
then you
> 	can classify and rate-limit the downstream rate on a

> 	per-application basis.
> 	
> 	Fwiw, if you are using diffserv bits, you could push
the
> 	rate-limits down to the router with a qos policy in
it
> 	instead of doing it all in the iptables box.
> 	
> 	References on this..  The netfilter website (for 
> 	classification info) and the Linux advanced router
tools
> 	(LART) (qos info/rate limiting)
> 	
> 	-e
> 	
> 	
> 	> -----Original Message-----
> 	> From: owner-nanog at merit.edu
[mailto:owner-nanog at merit.edu]
> 	On
> 	> Behalf Of Kim Onnel
> 	> Sent: Thursday, December 01, 2005 3:26 AM
> 	> To: NANGO
> 	> Subject: Re: QoS for ADSL customers 
> 	>
> 	> Can any one please suggest to me any commercial or
none
> 	> solution to cap the download stream traffic, our
upstream
> 	> will not recieve marked traffic from us, so what
can be
> 	done ?
> 	>
> 	>
> 	> On 11/29/05, Kim Onnel <karim.adel at gmail.com>
wrote:
> 	>
> 	>       Hello everyone,
> 	>
> 	>       We have Juniper ERX as BRAS for ADSL, its
GigE
> 	> interface is on an old Cisco 3508 switch with an
old IOS,
> 	its
> 	> gateway to the internet is a 7609, our transit
internet
> 	links
> 	> terminate on GigaE, Flexwan on the 7600
> 	>
> 	>       The links are now almost always fully
utilized, we 
> 	want
> 	> to do some QoS to cap our ADSL downstream, to give
room
> 	for
> 	> the Corp. customers traffic to flow without pain.
> 	>
> 	>       I'm here to collect ideas, comments, advises
and
> 	> experiences for such situations. 
> 	>
> 	>       Our humble approach was to collect some p2p
ports
> 	and
> 	> police traffic to these ports, but the traffic
wasnt much,
> 	
> 	> one other thing is rate-limiting per ADSL
customers IPs,
> 	but 
> 	> that wasnt supported by management, so we thought
of
> 	matching
> 	> ADSL www traffic and doing exceed action is
transmit, and
> 	> police other IP traffic.
> 	>
> 	>       Doing so on the ERX wasnt a nice experience,
so 
> 	we're
> 	> trying to do it on the cisco.
> 	>
> 	>       Thanks
> 	>
> 	>
> 	>
> 	
> 	
> 
> 
> 