nanog mailing list archives
Re: Cisco HFR
From: "Hannigan, Martin" <hannigan () verisign com>
Date: Wed, 26 May 2004 02:03:50 -0400
Isn't the regen seperate from the speed ie layer 1 and vs dwdm/lambda? Regards, -- Martin Hannigan (c) 617-388-2663 VeriSign, Inc. (w) 703-948-7018 <http://www.verisign.com/> -----Original Message----- From: owner-nanog () merit edu <owner-nanog () merit edu> To: Mikael Abrahamsson <swmike () swm pp se> CC: nanog () merit edu <nanog () merit edu> Sent: Tue May 25 22:12:03 2004 Subject: Re: Cisco HFR
Incorrect. There are transponders that put a 40G signal in a 10G DWDM optical system. (You have to move a step up from morse code to make the side-bands fit..) And they atleast run in 80 chanel systems.What is the range of this, how often do you need to amplify and regen the 40G signal compared to 10G?
You can run the same distance as you do with your 10G system. It;s mostly driven by dispersion, crosstalk and snr if you have many amps. Milage varies with span design, but is not much different than 10G (as the symbol speed is till 10G).
Can 10G optical amplifiers be used?
Yepp.. -P
Current thread:
- RE: Cisco HFR, (continued)
- RE: Cisco HFR Andy Dills (May 25)
- RE: Cisco HFR Neil J. McRae (May 27)
- Re: Cisco HFR Simon Lockhart (May 27)
- RE: Cisco HFR Andy Dills (May 25)
- Re: Cisco HFR Kevin Oberman (May 25)
- RE: Cisco HFR Burton, Chris (May 25)
- Re: Cisco HFR Peter Lothberg (May 25)
- Re: Cisco HFR Mikael Abrahamsson (May 25)
- Re: Cisco HFR Peter Lothberg (May 25)
- Re: Cisco HFR Mikael Abrahamsson (May 25)
- Re: Cisco HFR Henry Linneweh (May 27)
- Re: Cisco HFR Mikael Abrahamsson (May 25)
- Re: Cisco HFR Hannigan, Martin (May 25)
- RE: Cisco HFR Tomas Daniska (May 26)
- RE: Cisco HFR Williams, Jeff (May 26)
- RE: Cisco HFR Herman Harless (May 26)
- Re: Cisco HFR Petri Helenius (May 26)
- RE: Cisco HFR Ryan Dobrynski (May 27)
- RE: Cisco HFR Michel Py (May 27)
- RE: Cisco HFR Neil J. McRae (May 27)
- Re: Cisco HFR Mans Nilsson (May 27)
- RE: Cisco HFR Neil J. McRae (May 27)
- Re: Cisco HFR Hank Nussbacher (May 27)