The MPLS WG Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Traffic engineering and RSVP
Mike Badil wrote: > > Hi > > I confused when I read traffic engineering with MPLS. > > My question is: > > MPLS is combination of layer 2 swithing and layer 3 routing. Traffic eng. is > part of layer 3. In MPLS route(LSP) is established in advance according to > the constraints. in other word, instead of choosing shortest path, it choose > the path which satisfy its requirments, and to make link utulization better. > In order to have done this with MPLS there are some works which say that > OSPF,IS-IS can be modified by adding constraint to it. > > That is clear so far, > > I wondering that whether we can have those traffic engineering conditions be > satisfied by other tech. > > For example; RSVP-Intserv set up route in advance also. If we use extended > OSPF,IS-IS etc.algorithm with Intserv-RSVP as we use in MPLS, > we can choose the path which satisfy our constraints instead of choosing > Shortest path. Link load balancing can be done as in MPLS. So most of > traffic engineering requirements will be satisfied.(let don't consider > scalibility problem with RSVP now). Or it can work any other technology > which use RSVP. > The problem is in applying filter at every node to make sure your IP packet is following the selected path. Hence data path becomes slow. - sudheer > What am I missing here? > > _________________________________________________________________________ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > Share information about yourself, create your own public profile at > http://profiles.msn.com. |
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