The performance of AOMDV was improved with "one primary and one spare" routing and preemptive routing,so a protocol called PAOMDV was proposed.

Research on packet transport network based on T-MPLS;

T-MPLS is a connection-oriented packet transport technology based on MPLS.

Complying with the requirement of the project, the simulation of traffic managing chip with ten million gates in chips of packet transport networks is executed in this subject.

In the case that the pause time and maximum moving speed of the nodes changed in network,simulation experiments of which the indexes and average end-to-end delay,packet delivery ratio,routing overhead and average hops are designed.

Discussion on PTN Strategy in Metro Area Network

This article first explains the overall packet architecture of the Packet Transmission Network(PTN) that satisfies the requirement arising from the change in the service transmission mode from circuit-based TDM to packet-based IP or others.

PTN has more requirement about survivability than legacy TDM-based transport network,so it is a great challenge to T-MPLS.

Research and Analysis of Development Trend of Packet Transport Network;

The requirements of IP-based services bring a new generation technology of Optical Transport Network (OTN), which named packet transport networks.

This paper study on the fundamental problems of packet transport network, such as right objects processed by the transport network, the general disciplines of packets handling, presented the requirements of packet transport network for its unique architecture.