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    1: From Peer A
    2:  | From RS-Client B
    3:  |  | From RS-Client C
    4:  |  |  | From RS-Client D
    5:  |  |  |  |
    6:  |  |  |  |           Main / Normal RIB
    7:  |  |  |  |      ________________________________
    8:  |  |  |  |     /    _________     _________     \
    9:  |  |  |  +--->|(D)-|Best     |   | Main    |     |
   10:  |  |  +--|--->|(C)-|Path     |-->|Local-RIB|->[A]|--->To Peer A
   11:  |  +--|--|--->|(B)-|Selection|   |         |     |
   12:  +--|--|--|--->|(A)-|_________|   |_________|     |
   13:  |  |  |  |     \________________________________/
   14:  |  |  |  |
   15:  |  |  |  |          ________________________________
   16:  |  |  |  |          /    _________     _________     \
   17:  |  |  |  +--->*D*->|{B}-|Best     |   |RS-Client|     |
   18:  |  |  +--|--->*C*->|{B}-|Path     |-->|Local-RIB|->[B]|--->To RS-Client B
   19:  |  |  |  |         |    |Selection|   |  for B  |     |
   20:  +--|--|--|-------->|{B}-|_________|   |_________|     |
   21:  |  |  |  |          \________________________________/
   22:  |  |  |  |
   23:  |  |  |  |          ________________________________
   24:  |  |  |  |          /    _________     _________     \
   25:  |  |  |  +--->*D*->|{C}-|Best     |   |RS-Client|     |
   26:  |  |  |  |         |    |Path     |-->|Local-RIB|->[C]|--->To RS-Client C
   27:  |  +--|--|--->*B*->|{C}-|Selection|   |  for C  |     |
   28:  +--|--|--|-------->|{C}-|_________|   |_________|     |
   29:  |  |  |             \________________________________/
   30:  |  |  |
   31:  |  |  |              ________________________________
   32:  |  |  |             /    _________     _________     \
   33:  |  |  |            |    |Best     |   |RS-Client|     |
   34:  |  |  +------>*C*->|{D}-|Path     |-->|Local-RIB|->[D]|--->To RS-Client D
   35:  |  +--------->*B*->|{D}-|Selection|   |  for D  |     |
   36:  +----------------->|{D}-|_________|   |_________|     |
   37:                      \________________________________/
   38: 
   39: 
   40: Key:  (X) - 'In'  Filter applied to Peer X's announcements before
   41:             considering announcement for the normal main Local-RIB
   42:       [X] - 'Out' Filter applied to announcements to Peer X
   43:       *X* - 'Export' Filter of RS-Client X, to apply X's policies
   44: 	    before its routes may be considered for other RS-Clients
   45:             RIBs.
   46:       {X} - 'Import' Filter of RS-Client X, to apply X's policies
   47:             on routes before allowing them into X's RIB.