[MPLS] One question about LDP in RFC4447

[chenxb at ruijie.com.cn]

Hi all,
I have one question about LDP in RFC4447.

Section 5 in RFC4447 say:
    The PW label bindings
are distributed using the LDP downstream
    unsolicited mode described
in [RFC3036].  The PEs will establish an
    LDP session using the
Extended Discovery mechanism described in [LDP,
    sections 2.4.2 and 2.5].

My question is , 
if two PE is directly connected, can
LDP session be established using the
 Basic Discovery mechanism described
in [LDP RFC3036, section 2.4.1] ?

I consider that in this case  the
session using the Extended Discovery 
mechanism is maybe the same session
with using the Basic Discovery mechanism.



Thanks and Regards
   jerry king

  
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