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Ingress router will first identify the class of service (e.g. TOS bits of IP header.) Ingress keeps the mapping of FEC/DS <-> in-label /interface. So when packet comes from H1, it extracts the FEC and checks for DS bits. Searches for the entry in DS table and if it exists then gets a pointer to the FECn <-> in-label/interface entry of NHLFE. Puts that label and puts the packet on Tx (with respective priority) or to respective interface. Paresh Harish Kumtakar wrote: > Hi, > > I've one question regarding MPLS (Context: MPLS support of > DiffServ). > > Consider a scenario where in a client (sender) H1 can send traffic > belonging to all classes of service (EF,AF,BE) to a destination > D1. And the traffic from H1 has to pass through a MPLS cloud to > reach D1. Let us also assume that all the routers in that MPLS > domain support DiffServ. > > Ingress router of this MPLS domain, which is attached to H1, has > to establish more than one LSPs for the same FEC (desination D1), > in order to service the traffic from H1. > > Now my question is, if there are more than one LSPs for the same > FEC then how the Ingress router will decide as to which LSP the > data packet belongs to since there will be more than one NHLFE > entries for the same FEC. > > Wonder if anyone comments on this. TIA. > > Regards, > -Harish > ___________________________________________________ > Get www. mycompany .com and 5 matching email ids. > Just Rs. 1499/ year. > Click here http://www.rediffmailpro.com -- Visit http://astroparesh.cjb.net ********************************************************* Disclaimer This message (including any attachments) contains confidential information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, you should delete this message and are hereby notified that any disclosure, copying, or distribution of this message, or the taking of any action based on it, is strictly prohibited. ********************************************************* Visit us at http://www.mahindrabt.com begin:vcard n:Patil;Paresh tel;fax:18315767161 tel;home:91-22-24367641 tel;work:91-22-56922000 x-mozilla-html:FALSE url:http://www.mahindrabt.com org:Mahindra British Telecom Ltd.;Embedded Center of Excellence adr:;;Oberoi Estate Gardens, Chandivali, Andheri(E),;Mumbai;Maharashtra;400072;India version:2.1 email;internet:pareshp@mahindrabt.com title:Software Design Engineer fn:Paresh Patil end:vcard
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