nanog mailing list archives
Re: SONET and full duplex
From: "Ron Buchalski" <rbuchals () hotmail com>
Date: Fri, 08 Jun 2001 18:19:00
Vinay,SONET BLSR rings consist of four fibers and two full duplex paths, where the working path handles full duplex data, and the protect path sits idle. When the working path fails, the protect path (the other full duplex path) is activated, and handles full duplex data.
-rb
From: Vinay Bannai <bannai () pacbell net> Reply-To: bannai () pacbell net To: Joao Takeda <joao_takeda () optiglobe com br> CC: "'nanog () merit edu'" <nanog () merit edu> Subject: Re: SONET and full duplex Date: Fri, 08 Jun 2001 10:58:27 -0700 Joao Takeda wrote: > > > Hi, ALL. > > Can anyone confirm if links using SONET are full duplex? > Thanks. > > Takeda.Sonet when deployed in rings tend to have dual rotating rings. Each ring carries traffic in a particular direction. Each node on the ringtransmits on one of the rings and the other ring is used for receiving.However when using POS links which tend to point to point, then usually there are two fibers (one for transmitting and one for receiving). So to answer your question, most of the SONET links are full duplex.Vinay
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Current thread:
- SONET and full duplex Joao Takeda (Jun 08)
- Re: SONET and full duplex Vinay Bannai (Jun 08)
- <Possible follow-ups>
- Re: SONET and full duplex Ron Buchalski (Jun 08)
- Re: SONET and full duplex Ron Buchalski (Jun 08)