IOS support for MPLS QoS as stated in RFC 3270 L-LSP

Hi,
does anybody know something about the degree of implementation of RFC 3270 (Multi-Protocol Label Switching (MPLS) Support of Differentiated Services), particularly on the classification based on Labels (L-LSP)?
From what is detailed on the CCO it seems that only Exp-bits based LSP are supported (configuring all links along the path for the proper data plane behaviour based on the Exp-bits values): E-LSP
Thanx in advance
Francesco

I guess, in PPP and LAN environments, E-LSP is the preferred method and in the ATM only L-LSP is possible. Maybe cisco chose to implement only the E-LSP for the LAN and PPP environments, i am not sure though.
Anyone knows this for sure?
Check out http://www.cisco.com/warp/public/732/Tech/mpls/docs/mpls_qos_jayk.ppt for more details on MPLS-QoS

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