Title :
An integrated restoration system for SDH-based ATM transport networks
Author :
Veitch, Paul A. ; Chng, R.S.K. ; Johnson, D. ; Hawker, I. ; Smith, D.G.
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
Abstract :
This paper describes an integrated restoration strategy suitable for protecting services which are supported by an SDH-based ATM transport network. Restoration protocols which were developed independently to operate within respective SDH and ATM path layers, are coordinated in a unified software framework. The method of service protection assumes that non-ATM services transported by SDH paths are restored at the SDH layer, whilst SDH paths bearing ATM traffic remain unprotected at the SDH layer, with ATM service protection being supplied at the virtual path (VP) layer. The inter-working required to provide a seamless restoration system is explained, and computer simulations are employed to validate the operation of the integrated strategy in the presence of physical layer faults
Keywords :
asynchronous transfer mode; internetworking; optical fibre networks; protocols; synchronous digital hierarchy; telecommunication network reliability; telecommunication traffic; ATM path layer; ATM service protection; ATM traffic; SDH path layer; SDH-based ATM transport networks; computer simulations; fibre cuts; fibre node failures; integrated restoration system; interworking; network restoration protocols; network survivability; nonATM services; physical layer faults; seamless restoration system; unified software framework; virtual path layer; Computer simulation; Heat engines; Laboratories; Physical layer; Protection; Protocols; Resistance heating; Synchronous digital hierarchy; Telecommunication traffic; Traffic control;
Conference_Titel :
Global Telecommunications Conference, 1996. GLOBECOM '96. 'Communications: The Key to Global Prosperity
Conference_Location :
London
Print_ISBN :
0-7803-3336-5
DOI :
10.1109/GLOCOM.1996.591964
