A method of set up l:1 protection path rapidly in PTN
Sun Jie, Cai Xia Ju · Optical Communication Technology · 2011
In this paper,the characteristic and protection requirement of PTN is introduced.Then put forward a dual-path OSPF routing algorithm in PTN,which can set up working path and protection path in one time,then give the detailed process and flow chart of dual-path OSPF routing algorithm through an example of PTN topology in 3G backhauling network.Finally,the influence to network congestion and the network resource utility of this dual-path OSPF algorithm is analyzed simply.