Time Schemes In Remote Phy Architecture (2015)

By Hang Jin and Yubin Chen, Cisco Systems

The Remote DOCSIS Timing Interface (RDTI) is the timing specification standardized recently for R-PHY architecture. R-DTI leverages on IEEE1588v2 with a special profile for DOCSIS applications. This paper explains how R-DTI works and what are the requirements on the time/frequency synchronization between CCAP core and RPD to ensure proper DOCSIS operations. Two operation modes that are defined in RDTI, the NodeSlave mode and NodeMaster mode, are explained and their operations are illustrated. Tests are done in Cisco R-PHY Lab to validate R-DTI under various network conditions. Test results show that, with the commercial R-DTI solutions, the timing and frequency synchronization between CCAP core and RPD can be achieved within 5 minutes in all the test cases and CM can operate normally without any performance degradation after the synchronization is achieved.

By clicking the "Download Paper" button, you are agreeing to our terms and conditions.

Similar Papers

Time Schemes In Remote Phy Architecture
By Hang Jin and Yubin Chen, Cisco Systems
2015
Impact of CCAP to CM Distance in a Remote PHY Architecture
By John T. Chapman, Gerry White, and Hang Jin, Cisco
2015
R-PHY with Remote Upstream Scheduler
By Tong Liu, PhD & John T Chapman, Cisco Systems
2019
Remote PHY 2.0: The Next Steps For Remote PHY Technology
By Pawel Sowinski, Andy Smith & Tong Liu, Cisco Systems Inc.
2019
SDN As A Matchmaker For Remote Phy Architecture
By Alon Bernstein and Sangeeta Ramakrishnan, Cisco Systems
2015
The Architecture of the Open-Source Remote Phy Device
By Alon Bernstein and Anlu Yan, Cisco Systems
2016
Securing Remote PHY Infrastructure
By Pawel Sowinski and Gerry White, Cisco Systems, Inc.
2015
Remote PHY for Converged DOCSIS, Video and OOB
By John T. Chapman, CTO Cable Access BU & Cisco Fellow, Cisco
2014
Remote PHY: Why and How
By Jorge D. Salinger, VP, Access Architecture, Comcast Cable
2014
The impact of Remote PHY on Cable Service Convergence.
By Pawel Sowinski, Cisco Systems Inc.
2016
More Results >>