The MPLS WG Archive

["Choudhury, Sanjaya" <Sanjaya.Choudhury@marconi.com>]

	Hi! The current version of the MPLS-TE MIB does
	not capture the QoS scheme (Int-Serv / DiffServ) 
	and the associated parameters being used by a
	MPLS tunnel. Should the MPLS-TE be extended to 
	handle this ?

	Per MPLS Tunnel information I was looking for:
	---------------
	1. QoS scheme being used by the tunnel 
	   (At least at the originating LER.)

	2. If QoS scheme is Diff-Serv
		2.1 Type  of the LSP (L-LSP/E-LSP)
		2.2 If L-LSP (with signaled EXP<->PHB)
			2.2.1 The PSC associated with the
				L-LSP
			2.2.2 With or without bandwidth reservation.
				(Assume: If mplsTunnelResourcePointer	
				==ZeroDotZero then no bandwidth
				reservation needed)
				
		2.3 If E-LSP (with signaled EXP<->PHB)
			2.3.1 The set of PSCs being carried 
				by this E-LSP (EXP<->PHB
				mapping that was signaled 
				for this LSP)
			2.2.2 With or Without bandwidth reservation.
				(Assume: If mplsTunnelResourcePointer	
				==ZeroDotZero then no bandwidth
				reservation needed)		

	Some specific examples:
	-----------------------
	1. Assume that user configured a MPLS tunnel on
	a Diff-Serv aware LER. How will the LSR know 
	what kind of LSP (L-LSP / E-LSP) to setup ?

	2. How can the user determine what type of 
	PSC is being carried on a specific L-LSP ?
	(Alternatively, how can a user request the LSR
	to establish a L-LSP for a specific PSC?)

	3. How can user determine the details related to
	signaled EXP<->PHB mapping for a specific 
	E-LSP ?


	If this issues has been already addressed, I
	will appreciate if you can help me with the 
	answer to the above questions.
	

	Thanks,
	sanjay