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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: MAE-ATM Wire Speed PVC Interest Poll
On Mon, 11 Sep 2000, Nick Gerber wrote: > I don't have any MAE-ATM access ports, but I would be interested in how > line rate ATM works. > I supported the Sprint ATM backbone for several years and never heard of > something like this before. Could you forward me some info or links? > Or am I misunderstanding the meaning in your email? A few people have asked me questions like this so I am clarifying to the list. BTW, I have had excellent positive response to my original email. If you are interested and haven't responded yet please do so. Currently MAE-ATM customers can only create what amounts to CBR PVCs to other peers by using a web interface called PeerMaker. This means that you must allocate a fraction of the capacity of your port to each of your peers which typically results in PVC sizes betweem 5 amd 10 Mbps if you have an OC3 port. Due the the configuration of the MAE-ATM switches, any traffic sent in excess of the configured PVC size is dropped (we have verified this repeatedly). This results in a large amount of wasted capacity and unecessary droppage of packets. Traffic tends to grow and shift; continual reconfiguration of PVCs is not realistic. By comparison, Pac Bell NAP and Ameritech NAP customers talk via wirespeed UBR PVCs, which generally results in better utilization of the service. Better in this case being measured by larger amounts of traffic being carried with less loss and less management cost. The benefit of using UBR vs CBR at an exchange for most users is based on the premis of connections not being saturated. Even in the case of a saturated connection CBR does not fix things; in fact it creates another bottleneck with a much lower saturation threshold. > > > [email protected] wrote: > > > > MAE-ATM users, if you are interested in having the option to set a PVC to > > wirespeed (like Pac Bell or Ameritech) (which can increase your effective > > utilization of your MAE-ATM port and reduce management costs) please send > > me email with your name, your company name, your phone number and your > > email address. I will pass the collected list onto this manager (email > > below) at Worldcom. The information will be used for that purpose only. > > > > Thank you, > > > > Mike. > > > > +------------------- H U R R I C A N E - E L E C T R I C -------------------+ > > | Mike Leber Direct Internet Connections Voice 510 580 4100 | > > | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | > > | [email protected] http://www.he.net | > > +---------------------------------------------------------------------------+ > > > > ---------- Forwarded message ---------- > > Date: Mon, 11 Sep 2000 13:11:42 -0400 > > From: Alla Reznik <[email protected]> > > To: Mike Leber <[email protected]> > > Subject: RE: MAE OC40 requirements?? - Hurricane Electric (fwd) > > > > Would be very very helpful - please send if you could, thanks > > > > Alla Reznik > > Manager > > Int'l Internet/MAE/Paging/Packet > > WorldCom Business Markets > > V227-6441 or (703)343-6441 > > > > -----Original Message----- > > From: Mike Leber [mailto:[email protected]] > > Sent: Sunday, September 10, 2000 8:26 PM > > To: Alla Reznik > > Subject: RE: MAE OC40 requirements?? - Hurricane Electric (fwd) > > > > If I could give you a list (with contact names and phone numbers) of > > MAE-ATM customers that want this feature would it help? > > > > On Sun, 10 Sep 2000, Alla Reznik wrote: > > > > > Thanks for the feedback, Mike. > > > > > > Alla Reznik > > > Manager > > > Int'l Internet/MAE/Paging/Packet > > > WorldCom Business Markets > > > V227-6441 or (703)343-6441 > > > > > > > > > > > > > > > -----Original Message----- > > > From: Mike Leber [mailto:[email protected]] > > > Sent: Thursday, September 07, 2000 2:24 AM > > > To: [email protected] > > > Subject: Re: MAE OC40 requirements?? - Hurricane Electric (fwd) > > > > > > > > > > > > Our number one request is for wirespeed PVCs like Pac Bell NAP or > > > Ameritech. This feature could be added with a checkbox in peermaker. > > > > > > > Date: Mon, 07 Aug 2000 15:17:41 -0400 > > > > From: Alla Reznik <[email protected]> > > > > To: [email protected] > > > > Subject: MAE OC40 requirements?? - Hurricane Electric > > > > > > > > Dear customer, our records indicate that you are using OC12 MAE ATM > > > service > > > > from WorldCom. We would like to find out from you if you have any plans > > to > > > > move up to OC48 level of service and what are your specific requirements > > > for > > > > such service would be. As you might already know Worldcom does not > > offer > > > > MAE service above OC12 level at this time, but we recognize it as a > > > > requirements going forward and have made plans to offer it next year. > > > > However, we would like to hear from you and learn more about your > > > > requirements as well as timeframe as to when you are planning to make > > such > > > > move, so that we can respond in the best manner possible with the > > service > > > > suitable to your requirements. > > > > > > > > Alexandra (Alla) Reznik > > > > WorldCom Business Markets > > > > Data and Enterprise Product Marketing > > > > Int'l Internet, MAE, and Packet Services > > > > (703) 343-6441 > > > > http://datamarketing.wcomnet.com/index.html > > > > > > > > > > > > > > +------------------- H U R R I C A N E - E L E C T R I > > > C -------------------+ > > > | Mike Leber Direct Internet Connections Voice 510 580 > > 4100 > > > | > > > | Hurricane Electric Web Hosting Colocation Fax 510 580 > > 4151 > > > | > > > | [email protected] > > http://www.he.net > > > | > > > > > +--------------------------------------------------------------------------- > > > + > > > > > > > +------------------- H U R R I C A N E - E L E C T R I > > C -------------------+ > > | Mike Leber Direct Internet Connections Voice 510 580 4100 > > | > > | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 > > | > > | [email protected] http://www.he.net > > | > > +--------------------------------------------------------------------------- > > + > > -- > Nick Gerber > Sprint Broadband Wireless Group > Voice: 913 534 7317 > Pager: 877 344 3821 > Email: [email protected] > +------------------- H U R R I C A N E - E L E C T R I C -------------------+ | Mike Leber Direct Internet Connections Voice 510 580 4100 | | Hurricane Electric Web Hosting Colocation Fax 510 580 4151 | | [email protected] http://www.he.net | +---------------------------------------------------------------------------+
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