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An Ethernet Ring Protection Method to Minimize Transient Traffic by Selective FDB Advertisement

Kwang-Koog Lee, Jeong-dong Ryoo, and Seungwook Min

Abstract :

We introduce an improved Ethernet ring protection method, selective filtering database (FDB) advertisement, to minimize traffic overshoot in the event of a failure or recovery. On the protection switching event, the proposed method makes all ring nodes perform an FDB flush except the FDB entries associated with their client subnets. Then, ring nodes rapidly exchange their client MAC address lists so that their FDBs are immediately updated by indirect MAC address learning. The proposed scheme guarantees fast and reliable protection switching over the standard scheme.

Key word :

Ethernet ring protection switching, FDB flush, FDB flip.

DOI :

http://dx.doi.org/10.4218/etrij.09.0209.0244

Cite this :

Kwang-Koog Lee, Jeong-dong Ryoo, and Seungwook Min, "An Ethernet Ring Protection Method to Minimize Transient Traffic by Selective FDB Advertisement," ETRI Journal, vol. 31, no. 5, Oct. 2009, pp. 631-633.
http://dx.doi.org/10.4218/etrij.09.0209.0244

References :

1. ITU-T Rec. G.8032, Ethernet Ring Protection Switching, ITU-T, Geneva, 2008
2. J. Ryoo et al., "OAM and Its Performance Monitoring Mechanisms for Carrier Ethernet Transport Networks," IEEE Commun. Mag., vol. 46, no. 3, Mar. 2008, pp. 97-103.
3. J. Ryoo et al., "Ethernet Ring Protection for Carrier Ethernet Networks," IEEE Commun. Mag., vol. 46, no. 9, Sept. 2008, pp. 136-143.
4. J.K. Rhee et al, "Ethernet Ring Protection Using Filtering Database Flip Scheme for Minimum Capacity Requirement," ETRI J., vol. 30, no. 6, Dec. 2008, pp. 874-876.
5. OPNET Technologies Inc. http://www.opnet .com.

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An Ethernet Ring Protection Method to Minimize Transient Traffic by Selective FDB Advertisement
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