At 09:53 PM 9/11/97 +0200, you wrote:
Is there any place I can find more info about the aggregate IP b/w out of North America? How many OC-3s to Europe and to Japan? Is there 600Mb/sec of b/w from NA to Europe? Any help and pointers appreciated.
I was recently looking for this kind of info myslef. Seems that most of the connectivity maps, etc. that I came across were a year or 2 out of date. FWIW, I have a collection of links concerning international L1, L2, and some L3 connectivity on my ISP page. By no means a complete reference, but it might give you a start. Randy Benn http://www.clark.net/pub/rbenn/isp.html
We currently have SprintLink T-1 service. We have very low utilization on that link, and so save money we requested to be downgraded to 256K. Now it is my understanding that this should be very, very simple. Sprint just configures their CSU/DSU to not use timeslots 5 - 24. This, of course would bring the link down until we configured our CSU/DSU to not use timeslots 5 - 24. Ta ta! 256K. Right? Well, BellSouth just showed up to install our "new" T-1 to SprintLink. Huh? I told them to go away until I had more information. Is SprintLink being a bonehead or am I just totally clueless? --Eric -- Eric Wieling (eric@ccti.net), Corporate Communications Technology Sales: 504-585-7303 (sales@ccti.net), Support: 504-525-5449 (support@ccti.net) A BellSouth Communications Specialist. No, I don't work for BellSouth, I'm just on the phone with them so much that I'm an expert at getting them to do things.
We currently have SprintLink T-1 service. We have very low utilization on that link, and so save money we requested to be downgraded to 256K.
Downgrading? There's no such thing. Upgrading service is common and installation charges are often waived. Downgrading means you requested a new install of a 256K circuit. Now you could try and specify that they use the same span, but your salesperson is unlikely to want to do that -- because it cause MORE paperwork for them for a lesser return. E
Now it is my understanding that this should be very, very simple. Sprint just configures their CSU/DSU to not use timeslots 5 - 24. This, of course would bring the link down until we configured our CSU/DSU to not use timeslots 5 - 24. Ta ta! 256K. Right?
Well, BellSouth just showed up to install our "new" T-1 to SprintLink. Huh? I told them to go away until I had more information.
Is SprintLink being a bonehead or am I just totally clueless?
--Eric
-- Eric Wieling (eric@ccti.net), Corporate Communications Technology Sales: 504-585-7303 (sales@ccti.net), Support: 504-525-5449 (support@ccti.net)
A BellSouth Communications Specialist. No, I don't work for BellSouth, I'm just on the phone with them so much that I'm an expert at getting them to do things.
On Tue, Sep 16, 1997 at 09:11:52AM -0700, Ehud Gavron wrote:
We currently have SprintLink T-1 service. We have very low utilization on that link, and so save money we requested to be downgraded to 256K. Well, BellSouth just showed up to install our "new" T-1 to SprintLink. Huh? I told them to go away until I had more information. Is SprintLink being a bonehead or am I just totally clueless?
Downgrading? There's no such thing. Upgrading service is common and installation charges are often waived. Downgrading means you requested a new install of a 256K circuit. Now you could try and specify that they use the same span, but your salesperson is unlikely to want to do that -- because it cause MORE paperwork for them for a lesser return.
IOW, Sprint _is_ being a bonehead. No, he did _not_ request an install of a new 256K circuit. No, downgrading does _not_ mean that. My suggection would be, if they're going to be that stupid, and you have to have a new circuit installed anyway... get it from someone else. Cheers, -- jra -- Jay R. Ashworth jra@baylink.com Member of the Technical Staff Unsolicited Commercial Emailers Sued The Suncoast Freenet "People propose, science studies, technology Tampa Bay, Florida conforms." -- Dr. Don Norman +1 813 790 7592
Could be that they physically handle full and partial T1 circuits on different facilities. I would imagine that Sprint brings in many circuits on a large trunk so, to avoid the interruption of moving one end of the circuit which could take it down for hours while the telco does their work, they just install a new circuit and the customer does a cutover. Brian At 12:43 PM 9/16/97 -0400, Jay R. Ashworth wrote:
On Tue, Sep 16, 1997 at 09:11:52AM -0700, Ehud Gavron wrote:
We currently have SprintLink T-1 service. We have very low utilization on that link, and so save money we requested to be downgraded to 256K. Well, BellSouth just showed up to install our "new" T-1 to SprintLink. Huh? I told them to go away until I had more information. Is SprintLink being a bonehead or am I just totally clueless?
Downgrading? There's no such thing. Upgrading service is common and installation charges are often waived. Downgrading means you requested a new install of a 256K circuit. Now you could try and specify that they use the same span, but your salesperson is unlikely to want to do that -- because it cause MORE paperwork for them for a lesser return.
IOW, Sprint _is_ being a bonehead.
No, he did _not_ request an install of a new 256K circuit. No, downgrading does _not_ mean that. My suggection would be, if they're going to be that stupid, and you have to have a new circuit installed anyway... get it from someone else.
Cheers, -- jra -- Jay R. Ashworth jra@baylink.com Member of the Technical Staff Unsolicited Commercial Emailers Sued The Suncoast Freenet "People propose, science studies, technology Tampa Bay, Florida conforms." -- Dr. Don Norman +1 813 790 7592
On Tue, Sep 16, 1997 at 01:17:03PM -0400, Brian Horvitz wrote:
Could be that they physically handle full and partial T1 circuits on different facilities. I would imagine that Sprint brings in many circuits on a large trunk so, to avoid the interruption of moving one end of the circuit which could take it down for hours while the telco does their work, they just install a new circuit and the customer does a cutover.
It could, I suppose... but it's not too likely. I presume you mean that they terminate Full- and Frac-T services on different routers at their end? Maybe, but who cares? I've done this sort of thing on Frame circuits, and it runs just the way he expected: you put two people on the circuit on the phone, they both flip the same switched at the same time, and your throughput changes. If they'll _upgrade_ you from Frac- to Full- that way, why in hell won't they downgrade you? The finances should be immaterial to the engineering, in this case. Cheers, -- jra -- Jay R. Ashworth jra@baylink.com Member of the Technical Staff Unsolicited Commercial Emailers Sued The Suncoast Freenet "People propose, science studies, technology Tampa Bay, Florida conforms." -- Dr. Don Norman +1 813 790 7592
On Tue, Sep 16, 1997 at 01:17:03PM -0400, Brian Horvitz wrote:
Could be that they physically handle full and partial T1 circuits on different facilities. I would imagine that Sprint brings in many circuits on a large trunk so, to avoid the interruption of moving one end of the circuit which could take it down for hours while the telco does their work, they just install a new circuit and the customer does a cutover.
It could, I suppose... but it's not too likely. I presume you mean that they terminate Full- and Frac-T services on different routers at their end? Maybe, but who cares? I've done this sort of thing on Frame circuits, and it runs just the way he expected: you put two people on the circuit on the phone, they both flip the same switched at the same time, and your throughput changes. If they'll _upgrade_ you from Frac- to Full- that way, why in hell won't they downgrade you?
Below is an excerpt from my direct reply to the original question. It may be a little more complicated than you think. My first question is whether you are currently paying for M24 functionality on the T1. M24 allows the carrier to break the T1 signal down to 24 DS0 signals. You cannot assume that this is the case for a full T1. If M24 is available (is the T1 terminated in the correct place on the carrier side) then your request is fairly simple. If not, the T1 needs to be re-terminated in the correct place on the carrier side. The reason that the upgrade is easier is that M24 functionality already exists for circuits less than T1 speeds. You CANNOT assume that M24 is on a circuit sold as a full T1 because there are additional costs incurred. One factor in designing T1s is whether M24 will be required because more equipment will be necessary.
Is SprintLink being a bonehead or am I just totally clueless?
While I am not impartial regarding the participants, I do believe the sales droid should have expended more effort to understand what you wanted. Jim Bowlin AT&T Network Operations I have never nor will I likely ever speak for AT&T. These words are mine and only mine!
It may be a little more complicated than you think. My first question is whether you are currently paying for M24 functionality on the T1. M24 allows the carrier to break the T1 signal down to 24 DS0 signals.
I've never heard that terminology before. There are M12 muxes and M13 muxes that mux DS1's into DS2's or DS3's, 4 and 28 respectively. But I've never heard of an M01; those are usually called channel banks. The term M24 doesn't fit the pattern of the other names. Nevertheless, you are right that if the T1 doesn't terminate in a facility where it can be easily moved to a mux that would explain why they want to install a new circuit. They don't care if half of your local loop is unused because you pay full T1 rates for that anyway. But beyond the local loop they will probably want to aggregate your 256K circuit with their other fractional T1s. ******************************************************** Michael Dillon voice: +1-650-482-2840 Senior Systems Architect fax: +1-650-482-2844 PRIORI NETWORKS, INC. http://www.priori.net "The People You Know. The People You Trust." ********************************************************
participants (7)
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Brian Horvitz -
Ehud Gavron -
Eric Wieling -
Jay R. Ashworth -
jpbowlin＠attmail.com -
Michael Dillon -
Randall S. Benn