Optimization of the shortest-path routing with equal-cost multi-path load balancing
Författare
Summary, in English
In this paper we address the problem of routing optimization in IP networks. We assume that traffic is routed along the shortest paths computed with respect to administrative link metrics. Metrics are distributed in a network by open shortest path first (OSPF) or a similar routing protocol. If it happens that the shortest path is not unique then equal-cost multi-path (ECMP) load balancing principle is applied. It means that the demand traffic destined to specific node is split among all the shortest paths to that node. The problem considered here is to determine the shortest-path routing pattern satisfying traffic demands, and to find appropriate link metrics while link capacities are not exceeded. Besides that many traffic engineering criterias can be used as objective function of the problem, we assume that the residual capacity volume is maximized. In this paper we formulate the problem as a mixed integer programme (MIP) and propose some combinatorial separation cuts for the problem and give an effective method for deriving such cuts
Publiceringsår
2006
Språk
Engelska
Sidor
9-12
Publikation/Tidskrift/Serie
2006 International Conference on Transparent Optical Networks
Volym
3
Dokumenttyp
Konferensbidrag
Förlag
IEEE - Institute of Electrical and Electronics Engineers Inc.
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
- Communication Systems
Nyckelord
- resource allocation
- integer programming
- IP networks
- combinatorial mathematics
- routing protocols
Status
Published
ISBN/ISSN/Övrigt
- ISBN: 1-4244-0235-2