Title :
Auto-detection of misconnected fibers in WSS based multi-degree ROADM
Author :
Manohar, Nitin ; Kumar, Arvind
Author_Institution :
Ciena Corp., Gurgaon, India
Abstract :
Two-degree ROADM can be upgraded to next generation dynamically reconfigurable multi-degree OADM using an NÃ1 Wavelength Select Switch (WSS). WSS enables routing of selected wavelengths from a (local) degree to N (remote) degrees. In a typical multi-degree configuration, WSS sitting on individual degrees are connected back-to-back. This paper describes the design of a new protocol to run over an out-of-band OSC like channel established between a pair of WSS modules. This protocol creates a control channel between local degree (East or West) and a remote degree and enables detection of human errors in physical fibre connections among WSS modules. Using proposed protocol WSS module can detect various types of misconnections and in-turn can raise alarms to inform user about the same. This paper briefly discusses design of this protocol. A four degree configuration (N=2) is chosen for the ease of illustration.
Keywords :
fault diagnosis; multiplexing equipment; optical fibre networks; protocols; telecommunication network routing; ROADM; control channel; human errors; misconnected fibers; optical cross-connect; physical fibre connections; reconfigurable optical add-drop multiplexers; remote degree; wavelength routing; wavelength select switch; Error correction; Humans; Optical add-drop multiplexers; Optical devices; Optical filters; Protocols; Scalability; Switches; Wavelength division multiplexing; Wavelength routing; DWDM; Multi Degree; OSC; ROADM; WSS;
Conference_Titel :
Advanced Networks and Telecommunication Systems (ANTS), 2009 IEEE 3rd International Symposium on
Conference_Location :
New Delhi
Print_ISBN :
978-1-4244-5989-6
DOI :
10.1109/ANTS.2009.5409876