Quality-of-service routing for supporting multimedia applications
IEEE Journal on Selected Areas in Communications
Path computation in multi-layer multi-domain networks
IFIP'12 Proceedings of the 11th international IFIP TC 6 conference on Networking - Volume Part I
Path computation in multi-layer multi-domain networks: A language theoretic approach
Computer Communications
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Carrier-grade networks are complex systems that include several heterogeneous domains and support various types of services under specific Quality of Service (QoS) requirements. To tackle the problem of setting end-to-end connections across heterogeneous domains, the Pseudo-Wire architecture [1] allows to emulate some protocols (e.g. SDH, Ethernet, ATM, etc.) over MPLS. This emulation is achieved by encapsulation and decapsulation functions called adaptation functions. A path crossing heterogeneous domains must involve compatible functions so that datagrams are understandable by the source and target nodes (e.g. if Ethernet is encapsulated in MPLS by a node, it must be decapsulated by another).