一种基于折回点重路由的折回机制在ASON中的应用
doi: 10.3724/SP.J.1146.2007.00650
A Novel Crank Back Mechanism Based on Re-routing in ASON
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摘要: 该文提出了ASON网络中一种基于折回点重路由的折回机制，当连接发生折回时，该机制通过折回点对连接进行重路由，从而省去了折回消息发送的过程。为了实现该机制，扩展了信令消息及处理流程。搭建了15个节点的试验平台，采用了RSVP-TE、OSPF-TE及LMP等协议来实现ASON网络的控制平面。试验数据显示该机制与传统的折回机制相比较，不但节省了信令通信网(SCN)的带宽，而且节省了连接的最终建立时间。Abstract: A novel crank back mechanism based on re-routing in crank back node is proposed in ASON. This mechanism avoids the flow of crank back message when the crank back happened in connection establishment. To support this mechanism, function of component and procedure of signaling perform are extended. A test-platform of 15 nodes is built, it implement control plane of ASON by running RSVP-TE, OSPF-TE and LMP etc. The experimental results show that new mechanism has less connection setup time and network traffic than the traditional mechanism has.
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[1] ITU-T, G. 8080/Y.1304-2001, Architecture for AutomaticallySwitched Optical Network (ASON), November, 2001. [2] ITU-T. G.7713-2001, Generalized Distributed ConnectionManagement 2003. [3] ITU-T. G.7713.2－2003, Distributed connection management-GMPLS RSVP-TE. 2003. [4] IETF.[J].RFC2205 Resource Reservation Protocol (RSVP) --Version 1 Functional Specificationrdquo.1997,:- [5] IETF.[J].RFC3209 RSVP-TE: Extensions to RSVP for LSPTunnelsrdquo.2001,:- [6] IETF.[J].RFC3473 Generalized Multi-Protocol LabelSwitching (GMPLS) Signaling Resource ReservationProtocol-Traffic Engineering (RSVP-TE) Extensionsrdquo.2003,:- -
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