MPLS VPN Label

Hi,
I have set up a MPLS VPN network and my end-to-end ping works fine over the
MPLS. Ie I can ping CE1 from CE2 and vice-versa. I need to understand few
things regarding MPLS VPN label.
It was written on the books that the prefixes carry two labels with them while
traversing through the MPLS network with VPN label being on the top. Can we
see the VPN label for any prefix in the P routers?
PE1(config-router)#do sh mpls forwarding-tableLocal Outgoing Prefix
     Bytes tag Outgoing Next Hoptag tag or VC or Tunnel Id
 switched interface19 Untagged 1.1.1.1/32[V] 3762 Fa0/0
 10.10.10.1
Why the outgoing tag is mentioned as Untagged. 1.1.1.1 is my route in CE1
router which is inside the vrf.
PE1(config-router)#do sh ip bgp vpnv4 all labels Network Next Hop
   In label/Out labelRoute Distinguisher: 100:100 (ABC) 1.1.1.1/32
10.10.10.1 19/nolabel
Why is "nolabel" mentioned as the Out label here?
Please help me understand.

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Received on Sat Jun 25 2011 - 00:56:22 ART