Presentation 2004/1/22
Highly Available Network Node with Redundant Routing Modules
Hideki OKITA, Munetoshi TSUGE, Masatoshi TAKIHIRO, Tetsuhiko HIRATA,
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Abstract(in English) IP networks would become public communication infrastructures. An IP router is now expected to possess higher reliability on its packets processing and higher availability on its oeprating. In this paper, to improve the router availability, we propose the stateful redundant routing management modules, which are loaded on a modularized router composed of several separated entities. According to the proposal, we introduce our highly available OSPF implementation. We deploy routing process for each routing management module on the router. The routing processes on the modules compose a redundant OSPF control system that makes the IP router highly available against internal router failure. At a routing process failure on a primary module, a backup process takes over the state of network interfaces and the information of OSPF routing protocol. The redundant OSPF control system continuously processes routing protocol with neighbor routers.
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Keyword(in English) router / control element / redundancy / module / routing protocol
Paper # OCS2003-117
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Committee OCS
Conference Date 2004/1/22(1days)
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Registration To Optical Communication Systems (OCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Highly Available Network Node with Redundant Routing Modules
Sub Title (in English)
Keyword(1) router
Keyword(2) control element
Keyword(3) redundancy
Keyword(4) module
Keyword(5) routing protocol
1st Author's Name Hideki OKITA
1st Author's Affiliation Central Research Laboratory, Hitachi Ltd.()
2nd Author's Name Munetoshi TSUGE
2nd Author's Affiliation Central Research Laboratory, Hitachi Ltd.
3rd Author's Name Masatoshi TAKIHIRO
3rd Author's Affiliation Central Research Laboratory, Hitachi Ltd.
4th Author's Name Tetsuhiko HIRATA
4th Author's Affiliation Central Research Laboratory, Hitachi Ltd.
Date 2004/1/22
Paper # OCS2003-117
Volume (vol) vol.103
Number (no) 626
Page pp.pp.-
#Pages 4
Date of Issue