Cut-through IP Forwarding Technology for a Terabit-class Super-network
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Accession number;04A0265963
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| Title;Cut-through IP Forwarding Technology for a Terabit-class Super-network |
| Author;
YAGI T
(Ntt Information Sharing Platform Lab., Masashino-shi, Jpn)
MATSUI K
(Ntt Information Sharing Platform Lab., Masashino-shi, Jpn)
NARUSE Y
(Ntt Information Sharing Platform Lab., Masashino-shi, Jpn)
MURAYAMA J
(Ntt Information Sharing Platform Lab., Masashino-shi, Jpn)
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Journal Title;NTT Tech Rev
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Journal Code:F0282C
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ISSN:1348-3447
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VOL.2;NO.3;PAGE.41-49(2004)
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| Figure&Table&Reference;FIG.6, REF.9 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Our cut-through IP forwarding technology for a terabit-class super-network can reduce the processing load on provider edge routers. It is designed to improve the scalability of Internet protocol virtual private networks (IP-VPNs) while maintaining terabit-class forwarding performance achieved by cut-through optical path control. It lets provider edge routers accommodate a thousand IP-VPNs. Specifically, it deploys a hub-and-spoke IP routing scheme, redirection control scheme, and purge control scheme. The hub-and-spoke IP routing scheme improves the number of LP-VPNs accommodated in spoke provider edge routers by aggregating IP routes in each VPN. The redirection and purge control schemes maintain terabit-class forwarding performance by controlling IP routes according to traffic demand to avoid traffic concentration at the hub provider edge router. These technologies can efficiently improve scalability because highly reliable control is performed when a cut-through IP route is assigned unless state management is unnecessary. (author abst.) |
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