New routing path selection algorithm in MPLS TE
Huachen Zhang · Jisuanji gongcheng yu sheji · 2007
Now,CSPF algorithm is mostly utilized in realization of MPLS TE,however this algorithm does not have the consideration to the preemption as a LSR establish a LSP to a destination node,therefore possibly this policy could needlessly cause the interruption of other traffic which is preempted by the new esablishing LSP.A new algorithm is proposed and the COPF algorithm how to minimize the affection to established LSP as far as possible is illustrated,the algorithm optimize a path by reducing the quantity of LSP which is preempted as far as possible When there is no congestion in network,the algorithm try it's best to balanced traffic within network.