nanog mailing list archives
Re: SONET ring questions
From: Alan Hannan <alan () globalcenter net>
Date: Fri, 16 Oct 1998 22:34:52 -0700
For total system uptime 90.0% (one nine or less) Desktop systems. 99.0% (two nines) Intermediate business systems 99.9% (three nines) Most business data systems and workgroup servers 99.99% (four nines) High-end business systems and your friendly neighborhood telco 99.999% (five nines) Bank Data Centers and Telco Data Centers, some ISPs 99.9999% (six nines) Only God and Norad live here. 99.99999% (seven nines) Even God doesn't have pockets this deep.
What's your source for this data? -a
Current thread:
- SONET ring questions Peter Polasek (Oct 15)
- Re: SONET ring questions Tony Li (Oct 15)
- Re: SONET ring questions Roeland M.J. Meyer (Oct 16)
- Re: SONET ring questions Alan Hannan (Oct 16)
- Re: SONET ring questions Roeland M.J. Meyer (Oct 17)
- Re: SONET ring questions Howard C. Berkowitz (Oct 17)
- Re: SONET ring questions Roeland M.J. Meyer (Oct 16)
- Re: SONET ring questions Tony Li (Oct 15)
- Re: SONET ring questions Manar Hussain (Oct 19)
- Re: SONET ring questions Dave Cooper (Oct 19)
- Re: SONET ring questions Dave Cooper (Oct 19)
- Re: SONET ring questions Dave Cooper (Oct 16)
- <Possible follow-ups>
- Re: SONET ring questions Sean Donelan (Oct 15)
- Re: SONET ring questions David Greer (Oct 16)