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Network Automatic Optimization Based on Dynamic Adjustment of IGP Metrics

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Zhibo Hu, Gang Yan , Junda Yao
Last updated 2019-01-03 (Latest revision 2018-07-02)
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The centralized traffic engineering technology adopts centralized calculation, PCE/SDN performs centralized calculation based on the collected link-status and TE information collected by BGP-LS/IGP, so that the traffic in the network is optimized to the optimization goal. The distributed traffic engineering technology uses IGP to calculate the shortest path. Each node in the network calculates the next hop to a destination address based on the same algorithm and network topology. Each algorithm can calculate a shortest path tree in the entire network, which can reduce the amount of calculation, so that the hard convergence time of TE can be close to the convergence time of IGP. The distributed computing and management methods can not co-ordinate management of network bandwidth resources. As a result, network bandwidth resources can not be planned in an integrated manner, bandwidth resources are wasted, and even tunnels cannot be established. This document attempts to discuss a automatic network optimization function of the distributed traffic engineering technology by the method of dynamically adjusting the link Metric.


Zhibo Hu
Gang Yan
Junda Yao

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)