The MPLS WG Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] Finding the Egress Point in the MPSL Domain for the specific Destination
At 17:39 04/25/2000 -0700, Bora Akyol wrote: >I presume you are not familiar with how MPLS is actually used in providers networks. I presume you are not familiar with how MPLS is actually used in providers' ATM networks. :) >FEC to LSP binding is almost historical now. That's arguably true in router-based networks, because of the predominance of TE as an application of MPLS in those networks. However, FEC to LSP binding is very much alive in ATM MPLS networks. Also, at least one MPLS-based VPN scheme relies on hop-by-hop routed MPLS (which may, in turn, be over-ridden by TE) in network cores of any type. Regards, Jeremy Larence >At 10:55 AM 4/25/00 +0530, Manish R. Shah. wrote: > >>Hi !!! >> >>Once the LSP's are created, the ingress router looks for the matching FEC, and attaches >>a label corresponding to that FEC on to the data packet. Further forwarding is done using >>the label switching. >> >>In an MPLS domain the LDP has already taken care of mapping >>FEC's with the incoming and outgoing Labels and efficient distribution of Labels. >> >>Look at the following draft for furthur details. draft-ietf-mpls-ldp-06.txt >> >>Cheers !!! >> >>Manish R. Shah. >>Senior Software Engineer, >>Future Software Pvt Ltd. >>480-481, Anna Salai, Nandanam >>Chennai 600035. >>Phone: +91-(44)-433-0550 Xten 294. >> >> >>-----Original Message----- >>From: Neetu Gupta [SMTP:neetug@daewoo.dti.daewoo.co.kr] >>Sent: Tuesday, April 25, 2000 10:28 AM >>To: mpls@uu.net >>Subject: Finding the Egress Point in the MPSL Domain for the specific Destination >> >>Hello, >> Suppose the LSPs are created among the Edge Routers in the MPLS >>Domain with specific class of services. Now the data packet comes at the >>Ingress LER, the IP Header contains the Destination Address and TOS >>byte. >> >>Since there are labels to Egress Router, to which Egress LER the data >>packet will be forwarded that will route to the Destination? >> >>I've heard of the draft that specifies how to treat LSP tunnel end node >>like LSP egress edge as next node for route calculations. >>Please give some reference. >>Neetu > > > >
|
|