Presentation 2009-03-04
A study and evaluation on the application of OSPF optimal link cost setting method to MRC network
Aki FUKUDA, Masashi HASHIMOTO, Ken-ichi YUKIMATSU, Shohei KAMAMURA, Takashi MIYAMURA, Kohei SHIOMOTO,
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Abstract(in English) An IP-FRR (IP Fast Reroute) techniques, which are IP recovery Schemes, are proposed. MRC (Multiple Routing Configurations) method has been proposed for obtaining IP-FRR. The MRC method achieves high-speed restoration by using precomputing backup configurations. The MRC method prepares backup configurations, which are used for finding detour router after failures. In a backup configuration, the link cost of the link regarded as a failure point is set to a high value. The node that detects the failure selects the backup configuration which can avoid the failure point. The link cost of two or more links are set to a high value in a backup configuration. Therefore, the number of links that can be used by a detour route is limited, and there is a problem that the load concentrates on a specific link. As an approach to this problem, in this paper, we propose the backup configurations creation algorithm to improve the utilization efficiency of the network resource by optimizing link cost in each backup configurations. The effectiveness of our algorithm is confirmed by our evaluation.
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Keyword(in English) IP-Routing / OSPF / IP-FRR / MRC / Network optimization / Wang method
Paper # NS2008-190
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Committee NS
Conference Date 2009/2/24(1days)
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Registration To Network Systems(NS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A study and evaluation on the application of OSPF optimal link cost setting method to MRC network
Sub Title (in English)
Keyword(1) IP-Routing
Keyword(2) OSPF
Keyword(3) IP-FRR
Keyword(4) MRC
Keyword(5) Network optimization
Keyword(6) Wang method
1st Author's Name Aki FUKUDA
1st Author's Affiliation Dept. of Computer Science and Engineering, Akita University()
2nd Author's Name Masashi HASHIMOTO
2nd Author's Affiliation Dept. of Computer Science and Engineering, Akita University
3rd Author's Name Ken-ichi YUKIMATSU
3rd Author's Affiliation Dept. of Computer Science and Engineering, Akita University
4th Author's Name Shohei KAMAMURA
4th Author's Affiliation NTT Network Service System Laboratories
5th Author's Name Takashi MIYAMURA
5th Author's Affiliation NTT Network Service System Laboratories
6th Author's Name Kohei SHIOMOTO
6th Author's Affiliation NTT Network Service System Laboratories
Date 2009-03-04
Paper # NS2008-190
Volume (vol) vol.108
Number (no) 457
Page pp.pp.-
#Pages 4
Date of Issue