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RE: QoS for ADSL customers

  • From: Ray Burkholder
  • Date: Thu Dec 01 08:54:00 2005

There are a bunch of p2p and torrent custom classifier pdlm's at
http://www.cisco.com/cgi-bin/tablebuild.pl/pdlm


Quoting Ejay Hire <ejay.hire@isdn.net>:

> 
> 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@merit.edu [mailto:owner-nanog@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@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@merit.edu
> [mailto:owner-nanog@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@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
> > 	>
> > 	>
> > 	>
> > 	
> > 	
> > 
> > 
> > 
> 
> 
> -- 
> Scanned for viruses and dangerous content at 
> http://www.oneunified.net and is believed to be clean.
> 
> 


-- 
Ray Burkholder
http://www.oneunified.net
ray@oneunified.net
441 505 7293

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