一種用于光網(wǎng)絡(luò)故障恢復(fù)的網(wǎng)絡(luò)分割策略
A Network Partition Scheme for Restoration in Optical Networks
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摘要: 網(wǎng)絡(luò)規(guī)模的增大和復(fù)雜程度的提高給現(xiàn)有的集中式故障恢復(fù)策略的實(shí)施帶來(lái)了困難。本文提出了一種分布式子網(wǎng)分割策略，這種方法可以將大型光網(wǎng)絡(luò)分割成若干個(gè)具有中心節(jié)點(diǎn)的環(huán)形子網(wǎng)，進(jìn)而在每個(gè)子網(wǎng)中實(shí)施分布式管理和故障恢復(fù)。文中給出了具體的網(wǎng)絡(luò)分割過(guò)程，并給出了相應(yīng)的子網(wǎng)恢復(fù)策略。最后通過(guò)一個(gè)實(shí)際的網(wǎng)絡(luò)對(duì)這種網(wǎng)絡(luò)分割策略進(jìn)行了測(cè)試。實(shí)驗(yàn)結(jié)果驗(yàn)證了此策略的可行性和實(shí)用性。Abstract: Current centralized restoration schemes are bad match for the increasing of the scale and complexity of networks. A novel distributed network partition scheme is proposed in this paper. A large-scale network can be partitioned into several annular sub-networks with nuclear nodes in this scheme. In each sub-network, distributed manage ment and distributed restoration is adopted. The detailed process of partition is provided and the relevant distributed restoration scheme is given. Finally, this scheme has been implemented through computer simulation, and it was tested on practical optical networks. The simulation results show that this scheme is practicable and effectual.
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