Open AccessEthernet Ring Protection Using Filtering Database Flip Scheme For Minimum Capacity Requirement
Author(s) -
Rhee JuneKoo Kevin,
Im Jinsung,
Ryoo Jeongdong
Publication year - 2008
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.08.0208.0253
Subject(s) - scheme (mathematics) , ethernet , ethernet over sdh , computer network , transient (computer programming) , ring (chemistry) , topology (electrical circuits) , computer science , ring network , network topology , ethernet flow control , engineering , mathematics , electrical engineering , operating system , mathematical analysis , chemistry , organic chemistry
Ethernet ring protection is a new technology introduced in ITU‐T Recommendation G.8032, which utilizes the generic Ethernet MAC functions. We introduce an alternative enhanced protection switching scheme to suppress penalty in the switching transient, in which the Ethernet MAC filtering database (FDB) is actively and directly modified by information disseminated from the nodes adjacent to failure. The modified FDB at all nodes are guaranteed to be consistent to form a complete new ring network topology immediately. This scheme can reduce the capacity requirement of the G.8032 by several times. This proposed scheme can be also applied in IP protection rings.