Hybrid Routing in Next Generation IP Networks: QoS Routing Mechanisms and Network Control Strategies

Created by W.Langdon from gp-bibliography.bib Revision:1.4216

  author =       "Antoine B. Bagula",
  title =        "Hybrid Routing in Next Generation IP Networks: QoS
                 Routing Mechanisms and Network Control Strategies",
  school =       "Royal Institute of Technology (KTH)",
  year =         "2006",
  type =         "Doctor of Technology",
  address =      "Stockholm, Sweden",
  month =        dec,
  keywords =     "genetic algorithms, genetic programming, Gene
                 Expression Programming",
  URL =          "http://kth.diva-portal.org/smash/record.jsf?pid=diva2:11272",
  URL =          "http://kth.diva-portal.org/smash/get/diva2:11272/FULLTEXT01.pdf",
  size =         "78 pages",
  abstract =     "Communication networks have evolved from
                 circuit-switched and hop-by-hop routed systems into
                 hybrid data/optical networks using the Internet as a
                 common backbone carrying narrow- and broad-band traffic
                 offered by a multitude of access networks. This
                 data/optical backbone is built around a
                 multi-technology/multi-protocol routing architecture
                 which runs the IP protocols in a collapsed IP stack
                 where ATM and SONET/SDH have been replaced by the suite
                 of Generalised Multiprotocol Label Switching (GMPLS)
                 protocols. A further evolution referred to as ``IP over
                 Photons'' or ``All IP - All Optical'' is expected where
                 ``redundant intermediate layers'' will be eliminated to
                 run IP directly on top of optical cross-connects (OXCs)
                 with the expectation of achieving savings on operation
                 expenditures (OPEX) and capital expenditures (CAPEX).
                 ``IP over Photons'' has been stalled by the immaturity
                 in the control and data plane technologies leading to
                 complex and time-consuming manual network planning and
                 configurations which require a group of ``layer
                 experts'' to operate and maintain a hybrid data/optical

                 By making the status of each link and node of a
                 data/optical network visible to a common control, GMPLS
                 protocols have opened the way for automated operation
                 and management allowing the different layers of an IP
                 stack to be managed by a single network operator. GMPLS
                 protocols provide the potential to make more efficient
                 use of the IP backbone by having network management
                 techniques such as Traffic Engineering (TE) and Network
                 Engineering (NE), once the preserve of
                 telecommunications, to be reinvented and deployed to
                 effect different Quality of Service (QoS) requirements
                 in the IP networks. NE moves bandwidth to where the
                 traffic is offered to the network while TE moves
                 traffic to where the bandwidth is available to achieve
                 QoS agreements between the current and expected traffic
                 and the available resources. However,several issues
                 need to be resolved before TE and NE be effectively
                 deployed in emerging and next generation IP networks.
                 These include (1) the identification of QoS
                 requirements of the different network layer interfaces
                 of the emerging and next generation IP stack (2) the
                 mapping of these QoS requirements into QoS routing
                 mechanisms and network control strategies and (3) the
                 deployment of these mechanisms and strategies within
                 and beyond an Internet domain's boundaries to maximise
                 the engineering and economic efficiency.

                 Building upon different frameworks and research fields,
                 this thesis revisits the issue of Traffic and Network
                 Engineering (TE and NE) to present and evaluate the
                 performance of different QoS routing mechanisms and
                 network control strategies when deployed at different
                 network layer interfaces of a hybrid data/optical
                 network where an IP over MPLS network is layered above
                 an MP lambdaS/Fibre infrastructure. These include
                 mechanisms and strategies to be deployed at the
                 IP/MPLS, MPLS/MP LS and MP lambdaS/Fiber network layer
                 interfaces. The main contributions of this thesis are
                 threefold. First we propose and compare the performance
                 of hybrid routing approaches to be deployed in IP/MPLS
                 networks by combining connectionless routing mechanisms
                 used by classical IGP protocols and the connection
                 oriented routing approach borrowed from MPLS. Second,
                 we present QoS routing mechanisms and network control
                 strategies to be deployed at the MPLS/MP lambdaS
                 network layer interface with a focus on
                 contention-aware routing and inter-layer visibility to
                 improve multi-layer optimality and resilience. Finally,
                 we build upon fiber transmission characteristics to
                 propose QoS routing mechanisms where the routing in the
                 MPLS and MP lS layers is conducted by Photonic
                 characteristics of the fiber such as the availability
                 of the physical link and its failure risk group
  notes =        "Public defence: 2006-12-12, Aula, KTH-Forum,
                 Isafjordsgatan 39, Kista, 13:00

                 Supervisor: Pehrson, Bjorn (KTH, School of Information
                 and Communication Technology (ICT), Electronic,
                 Computer and Software Systems, ECS)

                 Opponent: Stiller, Bukhard, Professor (ETH Zurich)",

Genetic Programming entries for Antoine B Bagula