The control of multidomain elastic optical networks (EONs) is possible by combining Hierarchical Path Computation Element (H-PCE)-based computation, Border Gateway Protocol with Extensions for Traffic Engineering Link State Information (BGP-LS) topology discovery, remote instantiation via Path Computation Element Communication Protocol (PCEP), and signaling via Resource Reservation Protocol with Extensions for Traffic Engineering (RSVP-TE). Two evolutionary architectures are considered, one based on stateless H-PCE, PCEP instantiation, and end-to-end RSVP-TE signaling (SL-E2E), and a second one based on stateful active H-PCE with per-domain instantiation and stitching. This paper presents the first multiplatform demonstration that fully validates both control architectures achieving multiprotocol interoperability. SL-E2E leads to slightly faster provisioning but needs to keep the state of the stitching of the end-to-end label-switched paths in the parent PCE.
© 2015 Optical Society of AmericaFull Article | PDF Article
More Like This
J. Opt. Commun. Netw. 7(11) B1-B9 (2015)
Ramon Casellas, Raül Muñoz, Ricardo Martínez, Ricard Vilalta, Lei Liu, Takehiro Tsuritani, Itsuro Morita, Víctor López, Oscar González de Dios, and Juan Pedro Fernández-Palacios
J. Opt. Commun. Netw. 7(1) A106-A117 (2015)
Ramon Casellas, Raül Muñoz, Ricardo Martínez, and Ricard Vilalta
J. Opt. Commun. Netw. 5(10) A192-A203 (2013)