nanog mailing list archives
Re: MCI [ATM overhead]
From: Paul Ferguson <pferguso () cisco com>
Date: Wed, 20 Mar 1996 15:08:18 -0500
At 08:38 AM 3/20/96 -0800, Wolfgang Henke wrote:
Thank you for the reference. I will certainly check it out. Here is a little table which I hope will help ISPs planning to upgrade bandwidth: SONET (Synchronous Optical Network) speeds given in Mbps nominal w/o Sonet ATM TCP/IP overhead OC-3 STS-3c 155.520 149 122 137 future net backbone OC-12 STS-12c 622.080 599 488 549 OC-48 STS-48c 2488.32 2396 1953 2197 current telco backbone OC-192 STS-192c 9953.28 9585 7813 8788 on single mode fiber or multi mode fiber or CATV 75 ohm coax (the lower speeds)
And here's one that [fills in the gaps] shows the relationship between STS and SDH: SONET/SDH Heirarchies SONET Bit Rate SDH STS-1/OC-1 51.84 Mb - STS-3/OC-3 155.52 Mb STM-1 STS-12/OC-12 622.08 Mb STM-4 STS-24/OC-24 1244.15 Mb - STS-48/OC-48 2488.32 Mb STM-16 STS-192/OC-192 9953.28 Mb STM-64 - paul
Current thread:
- Re: MCI [ATM overhead] Jeff Ogden (Mar 19)
- Re: MCI [ATM overhead] Gordon Cook (Mar 19)
- Re: MCI [ATM overhead] Gary R Wright (Mar 19)
- Re: MCI [ATM overhead] Jim Forster (Mar 19)
- <Possible follow-ups>
- Re: MCI [ATM overhead] Paul Ferguson (Mar 19)
- Re: MCI [ATM overhead] Wolfgang Henke (Mar 19)
- Re: MCI [ATM overhead] John Cavanaugh (Mar 20)
- Re: MCI [ATM overhead] Wolfgang Henke (Mar 20)
- Re: MCI [ATM overhead] Paul Ferguson (Mar 20)
- Re: MCI [ATM overhead] Mark A. Luker (CISE/NCRI) (Mar 22)
- Re: MCI [ATM overhead] Vadim Antonov (Mar 20)
- Re: MCI [ATM overhead] Shikhar Bajaj (Mar 20)
- Re: MCI [ATM overhead] Tim Salo (Mar 20)
- Re: MCI [ATM overhead] Jon Zeeff (Mar 21)
- Re: MCI [ATM overhead] William Allen Simpson (Mar 21)
- Re: MCI [ATM overhead] Shikhar Bajaj (Mar 21)
- Re: MCI [ATM overhead] Shikhar Bajaj (Mar 21)
- Re: MCI [ATM overhead] Tim Salo (Mar 21)
- Re: MCI [ATM overhead] Jeff Ogden (Mar 21)
(Thread continues...)
- Re: MCI [ATM overhead] Gordon Cook (Mar 19)