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Time and Frequency Transfer in an Asynchronous TCP/IP over SDH-network Utilizing Passive Listening

Ragne Emardsson ; Per Olof Hedekvist (Institutionen för mikroteknologi och nanovetenskap, Fotonik ; Extern)
IEEE Topical meeting on Precise Time and Time Interval 2005 (2005)
[Konferensbidrag, refereegranskat]

SP, Swedish National Testing and Research Institute together with STUPI have developed a technique for time and frequency transfer over an asynchronous TCP/IP network. The method is based on passive listening to existing data traffic in the network. We use the frame alignment bytes of the SONET/SDH protocol used between routers as references in order to compare standards located at the routers. As a test bed for the experiment, we will use the Swedish university Computer Network (SUNET). A preliminary assessment of the technique in a lab environment will be performed in late 2005.


PO Hedekvist is affiliated both with Chalmers MC2 and SP, where the work was performed.



Denna post skapades 2006-08-29.
CPL Pubid: 9681

 

Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Fotonik

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur