+-------+                             +-------+
               |PCC    |                             |  PCE  |
               |ingress|                             +-------+
        +------|       |                                 |
        | PCC  +-------+                                 |
        | transit| |                                     |
 +------|        | |---PCRpt,PLSP-ID=1,PST=2,D=1-------->| PCECC LSP
 |PCC   +--------+ |                                     |          
 |egress  |  |     |                                     |
 +--------+  |     |                                     |
     |       |     |                                     |
     |<-------PCInitiate,CC-ID=X,PLSP-ID=1---------------| Label
     |       |     |     C=1                             | download
     |--------PCRpt,CC-ID=X,PLSP-ID=1------------------->| CCI
     |       |     |     Label=L1                        |
     |       |<------PCInitiate,PLSP-ID=1,---------------| Labels
     |       |     |            CC-ID=Y1,C=1             | download
     |       |     |            CC-ID=Y2,C=0,L1          | CCI
     |       |-------PCRpt,PLSP-ID=1-------------------->|
     |       |     |       CC-ID=Y1,Label=L2             |
     |       |     |       CC-ID=Y2                      |
     |       |     |<----PCInitiate,CC-ID=Z,PLSP-ID=1----| Label
     |       |     |                C=0,L2               | download
     |       |     |-----PCRpt,CC-ID=Z,PLSP-ID=1-------->| CCI
     |       |     |                                     |
     |       |     |<---PCUpd,PLSP-ID=1,PST=2,D=1--------| PCECC LSP
     |       |     |                                     | Update
     |       |     |                                     |