Loop-expanding fast restoration

Kil hung Lee, Yong hoon Choi, Jai yong Lee, Sang bae Lee

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)


In this presentation, we introduce a fast restoration scheme against a link or node failure. Specifically, we apply this scheme to VP (Virtual Path) restoration in ATM (Asynchronous Transfer Mode) networks. Proposed restoration scheme operates on VP-based ATM network. This scheme is a distributed algorithm performed concurrently by network nodes neighboring failed node or link. When a node or link fails, restoration is performed according to the pre-assigned local, regional, and end-to-end restoration scheme. For this, we assigned a restoration level to each network nodes and VPs, respectively. Also, we devise and construct a VP loop, and fast restoration is performed along this loop. This loop is expanded when a failure occurs, and this expanded loop is used for the restoration of the failed VP connection. We define the required VP loop architecture, restoration messages, and restoration procedures. Proposed algorithm is simulated and compared with general flooding restoration scheme. Results show that the proposed loop-expanding restoration scheme can achieve fast restoration goal with a lower burden to network.

Original languageEnglish
Number of pages10
Publication statusPublished - 1998
EventProceedings of the 1998 IEEE Network Operations and Management Symposium. Part 1 (of 3) - New Orleans, LA, USA
Duration: 1998 Feb 151998 Feb 20


OtherProceedings of the 1998 IEEE Network Operations and Management Symposium. Part 1 (of 3)
CityNew Orleans, LA, USA

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering


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