Abstract：IGP routing protocol optimization techniques are introduced in this paper． It reduces the routing calculating time by using incremental SPF algorithm， prevents the frequent route calculation by introducing "Intelligent Timer" technology． Bidirectional Forwarding Detection (BFD) technology is used to accelerate the discovery of network status， to reduce the impact of equipment failure on the business and increase network availability． Interface dampening technology is used to restrict routing computation frequently and prevent interface change frequently caused by link state problems．
2012, Vol. 1 