The MPLS-OPS Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] RE: Reg policy base routing in MPLS
Hi, My understanding is that Constraint Based Routing (CBR) may be performed either online by an LSR (through the control plane), or offline (through the mgmt plane).The outcome of the Constraint Based Routing is the computation and selection of the shortest e2e path fulffiling all the QoS/Routing/Policy constraints. Then it's up to CR-LDP to signal the e2e path. So if CBR is done through the control plane, you must always "tell" the LSR MIB what the routing constraints are, before the Constrained Shortest Path First algorithm runs. On the other hand if CBR is done through the management plane, you have to "tell" the head-end LSR which path was selected, so the CR-LDP can establish the e2e path. In order to do this the LSR MIBs must support these features. Ciao. Nuno. Nuno Carvalho Silva PT Inovação, SGR Phone: + 351 234 403 394 Fax: + 351 234 424 160 E-mail: nunos@ptinovacao.pt > -----Original Message----- > From: Pradeep Shastry [SMTP:pshastry@india.mantranet.com] > Sent: Friday, November 24, 2000 7:23 AM > To: mpls-ops@mplsrc.com > Subject: Reg policy base routing in MPLS > > Hi, > > I am Pradeep Shastry, I am working on MPLS. > I have a question, > > How does MPLS will takes care of Policy Base Routing before assiging > labels > at the edge? > > Thanks and Regards > -Pradeep Shastry > > ------- > The MPLS-OPS Mailing List > Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml > Archive: http://www.mplsrc.com/mpls-ops_archive.shtml ------- The MPLS-OPS Mailing List Subscribe/Unsubscribe: http://www.mplsrc.com/mplsops.shtml Archive: http://www.mplsrc.com/mpls-ops_archive.shtml
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