Label Space Reduction in MPLS Networks: How Much Can A Single Stacked Label Do?
Most network operators have considered reducing LSR label spaces (number of labels used) as a way of simplifying management of underlaying virtual private networks (VPNs) and therefore reducing operational expenditure (OPEX). The IETF outlined the label merging feature in MPLS-allowing the configura...
| Autores: | , , , |
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| Tipo de documento: | artigo |
| Data de publicação: | 2008 |
| País: | España |
| Recursos: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositório: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:10256/2325 |
| Acesso em linha: | http://hdl.handle.net/10256/2325 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Extranets (Xarxes d'ordinadors) MPLS (Norma) Ordinadors, Xarxes d' -- Arquitectures Protocols de xarxes d'ordinadors Telecomunicació -- Tràfic Computer network architectures Computer network protocols Extranets (Computer networks) MPLS standard Telecommunication -- Traffic Virtual Private Network |
| Resumo: | Most network operators have considered reducing LSR label spaces (number of labels used) as a way of simplifying management of underlaying virtual private networks (VPNs) and therefore reducing operational expenditure (OPEX). The IETF outlined the label merging feature in MPLS-allowing the configuration of multipoint-to-point connections (MP2P)-as a means of reducing label space in LSRs. We found two main drawbacks in this label space reduction a)it should be separately applied to a set of LSPs with the same egress LSR-which decreases the options for better reductions, and b)LSRs close to the edge of the network experience a greater label space reduction than those close to the core. The later implies that MP2P connections reduce the number of labels asymmetrically |
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