Side_1_360

3.2.4 Routing QoS and Best-effort Traffic QoS routed and best-effort traffic will coexist in most networks, and this may cause a ...

The standard link-state IGP flooding algorithm distributes these additional link attributes to all routers in the routing domain ...

When a path has been partly calculated offline, the ingress router may explicitly complete the route calculation and instantiate ...

Resource classattributes can be viewed as “colours” assigned to resources such that the set of resources with the same colour be ...

Inter-domain routing is a much more compli- cated process. Since it deals with routing be- tween different domains, standardisat ...

[HUIT00] Huitema, C. 2000. Routing in the Internet.2nd Edition. Upper Saddle River, NJ, Prentice Hall. [ISIS-TE] IS-IS extension ...

145 1 Introduction Traffic routing within a telecommunication net- work defines how the traffic matrix is mapped on the network ...

Telektronikk 2/3.2001 Routing pattern: For a given network topology, we define a routing pattern as a set of (possibly multiple) ...

147 routing path up in one direction while the return routing path is down due to a link failure. With symmetric routing pattern ...

path, then the packet will be forwarded in this tunnel; “Advertise tunnels into the IGP”: In this model implemented by some man ...

functions of the following type can thus be con- sidered: (2) Interpretations similar as for criterion (1) can be proposed. The ...

are symmetric but may have a different capacity in each direction. The traffic matrix is oriented. The two following scenarios e ...

of the sub-optimality compliant routing strategy is equal to the routing set of the unique shortest path routing strategy [Ben-A ...

5.4 Comparison of Performance The performance criteria considered in this Sec- tion concern the network’s ability to support tra ...

routing strategy, the edge metric value is sys- tematically set to one) may induce a very poor performance compared to the perfo ...

implies the modification of administrative metric values of the IGP in the network. This operation is not desirable to do too of ...

A general linear model that can be used to find metrics is the following: This linear program can be solved by gener- alised lin ...

LP 2 always has a solution. It is also easy to show that the variables εab, obtained by solving LP 2 , will be equal to 1 or 0. ...

be possible in a reasonable computational time because some problems are NP-hard. In such cases efficient heuristics have to be ...

on explicit routing (which requires a large number of tunnels), but that mixed routing strategies based on IGP routing and MPLS ...