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The resource reservation protocol (RSVP) was originally proposed as a signaling protocol to be used within a QoS architecture for IP networks. However, the modularity and extensibility of the protocol has led to its adoption as a generic signaling protocol that may be used to deliver control plane information to nodes in an IP network. RSVP with traffic engineering (TE) extensions, RSVP-TE, is used for signaling in multi-protocol label switching (MPLS) networks initially and, more recently, in generalized MPLS (GMPLS) networks. GMPLS typically necessitates a separation of the control plane and the data plane, hence control plane resiliency is a key issue. This paper discusses the manner in which the standardised enhancements to RSVP-TE may be used to increase the resilience of the GMPLS control plane.
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Komolafe et al. (2007) studied this question.
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