Traffic Volume Manager ? (Previously: RE: Regional differences in P2P)
Hello, the discussion here is getting interesting for me, because people are talking about not only capping the Bandwidth but also capping the volume of the traffic sent by a customer. So far people are used to do the capping of bandwidth with a Bandwidth Manager device, which does traffic shaping based on e.g. application/protocols, etc. Now, since we are talking about capping on the volume, what is the product available on the market which can do both bandwidth and volume capping ? thanks, Muljawan -----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Michel Py Sent: Saturday, July 17, 2004 3:28 AM To: sthaug@nethelp.no Cc: nanog@merit.edu Subject: RE: Regional differences in P2P
Steinar Haug wrote: Telenor, the largest Norwegian service provider, capped their ADSL customers at a ridiculously low 1 Gbyte/month for a while. Presumably they lost sufficient business to other (uncapped) providers that they noticed - the cap has now been removed.
Ridiculous is the word here. Download two service packs and you're done for the month? I can understand this happening in Brazil or India, where caps are a tool to attract enough customers so they bring revenue that in turn will be re-injected in much needed backbone upgrades, but in Norway or the US it does not make a lot of sense to me.
Michel Py wrote: I agree, but see above: a 40GB/mo cap is not something that I care about. Granted, I'm not a hardcore file swapper but 40GB/mo are more
Mikael Abrahamsson wrote: I don't know of any capped service over here, nobody dares take the first step. The largest 10meg provider here launched a new 100 meg full duplex service for their approx 200.000 household reach at USD$110 a month with a 300G cap (their 10 meg service for $45 a month is uncapped) and there has been a fair amount of users complaining about 300G not being nearly enough. When you start swapping DVDRs it just isn't.
There is a need for capping 10 and 100 meg residential though; if you want to run your 100 Mb/s pipe full all the time it represents 26TB per month in each direction; you can't give 2/3rds of an OC-3 to a customer for $110/mo. A 300GB/mo cap means that the customer is using their line an average of 1.15%, which brings the interesting question of what a reasonable speed/cap ration should be. 1.5 Mb/s = 389 GB/mo 10 Mb/s = 2.6 TB/mo 100 Mb/s = 26 TB/mo Speed/cap ratios: 1.5 Mb/s capped at 1 GB/mo = 0.25% ridiculous IMHO 10 Mb/s capped at 40 GB/mo = 1.54% 100 Mb/s capped at 300 GB/mo = 1.15% Thoughts, anyone? Michel.
On Mon, 19 Jul 2004, Hendrianto Muljawan wrote:
Now, since we are talking about capping on the volume, what is the product available on the market which can do both bandwidth and volume capping ?
For me, products that do capping on choke points are of very little interest since they do not scale and often hinder redundancy (all traffic has to go through a single point). I prefer to do this on the access port (port of entry), so for me this would be done at DSLAM or switch port level depending on access type. -- Mikael Abrahamsson email: swmike@swm.pp.se
On Mon, Jul 19, 2004 at 05:11:28PM +0800, Hendrianto Muljawan wrote:
So far people are used to do the capping of bandwidth with a Bandwidth Manager device, which does traffic shaping based on e.g. application/protocols, etc.
Now, since we are talking about capping on the volume, what is the product available on the market which can do both bandwidth and volume capping ?
For DSL, this can be done at the BRAS. The most popular vendors (Juniper and Redback) have support for dynamic subscriber profiles. Individual customers can be 'squeezed' when they have reached their cap. Accounting is done via radius records (start/stop/intermediate). Capping at the DSLAM level could also be an option if you manage the DSLAMs. It is usually the case that dslams are operated by a separate NAP, usually the incumbent. In this case, capping at dslam is virtually impossible, due to administrative overhead. Capping at the BRAS is not the ideal solutions (policing should happen as close to edge as possible) but from an operational standpoint, this is usually the only way. For cable, capping is done on the cable modem. Metering per sub is done on the CMTS. Capping, metering via SNMP. Ethernet - edge switch. -walter
participants (3)
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Hendrianto Muljawan
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Mikael Abrahamsson
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Walter De Smedt