Control Plane Protection Using Link Management Protocol (LMP) in the ASON/GMPLS CARISMA Network
نویسندگان
چکیده
In the ITU-T ASON architecture, the control plane is responsible for providing intelligence to the network. The GMPLS paradigm pleads for a separation between the control plane and the forwarding plane. If the control plane is deployed disjoint from the forwarding plane, recovery mechanisms to ensure its proper operation are required. In this paper, on one hand, a quasi-associated mode backup control channel proposal is compared with a traditional associated 1:1 protection. On the other hand, extensions to LMP defined by the IETF are presented and evaluated to address both control channel and nodal failure recovery. The merits of the proposals are assessed by experimental results.
منابع مشابه
Experimental Link Resource Manager Implementation for the ASON/GMPLS CARISMA Network
The control plane has emerged as the key entity of the International Telecommunications Union (ITU-T) Automatic Switched Optical Network (ASON) architecture, enabling both soft-permanent and switched connection establishment. The fundamental control plane functional module is the Optical Connection Controller (OCC) which in turn, is divided in four sub-modules. The Link Resource Manager (LRM) i...
متن کاملNetwork Working Group a Transport Network View of the Link Management Protocol (lmp)
The Link Management Protocol (LMP) has been developed as part of the Generalized MPLS (GMPLS) protocol suite to manage Traffic Engineering (TE) resources and links. The GMPLS control plane (routing and signaling) uses TE links for establishing Label Switched Paths (LSPs). This memo describes the relationship of the LMP procedures to ’discovery’ as defined in the International Telecommunication ...
متن کاملA Transport Network View of the Link Management Protocol (LMP)
The Link Management Protocol (LMP) has been developed as part of the Generalized MPLS (GMPLS) protocol suite to manage Traffic Engineering (TE) resources and links. The GMPLS control plane (routing and signaling) uses TE links for establishing Label Switched Paths (LSPs). This memo describes the relationship of the LMP procedures to ’discovery’ as defined in the International Telecommunication ...
متن کاملGMPLS Control Plane Auto-discovery Evaluation and Its Interfacing with OSS in IP Optical Network
This paper compared the auto-discovery functionality between GMPLS and ASON, and found the current LMP in GMPLS needs to be modified to meet with the requirements of the ITU-T standard. To efficiently communicate the auto-discovered information between the control plane and the management plane, we proposed the interface between the two planes should be standardized.
متن کاملDifferences between Ason and Gmpls Network Models
Generalized multiprotocol label switching (GMPLS) [1] is a set of network control protocols designed to realize a next-generation highperformance transport network that uses control plane functions. From the architectural perspective, GMPLS-based transport networks are divided into two categories. One is the automatically switched optical network (ASON) architecturebased transport network [2] o...
متن کامل