+------------------------+-----------+--------------+---------------+
   | Property               | Parameter | Value        | Reference     |
   +------------------------+-----------+--------------+---------------+
   | FN, NICKNAME, PHOTO,   | TYPE      | work         | RFC 6350,     |
   | ADR, TEL, EMAIL, IMPP, |           |              | Section 5.6   |
   | LANG, TZ, GEO, TITLE,  |           |              |               |
   | ROLE, LOGO, ORG,       |           |              |               |
   | RELATED, CATEGORIES,   |           |              |               |
   | NOTE, SOUND, URL, KEY, |           |              |               |
   | FBURL, CALADRURI, and  |           |              |               |
   | CALURI                 |           |              |               |
   | FN, NICKNAME, PHOTO,   | TYPE      | home         | RFC 6350,     |
   | ADR, TEL, EMAIL, IMPP, |           |              | Section 5.6   |
   | LANG, TZ, GEO, TITLE,  |           |              |               |
   | ROLE, LOGO, ORG,       |           |              |               |
   | RELATED, CATEGORIES,   |           |              |               |
   | NOTE, SOUND, URL, KEY, |           |              |               |
   | FBURL, CALADRURI, and  |           |              |               |
   | CALURI                 |           |              |               |
   | TEL                    | TYPE      | text         | RFC 6350,     |
   |                        |           |              | Section 6.4.1 |
   | TEL                    | TYPE      | voice        | RFC 6350,     |
   |                        |           |              | Section 6.4.1 |
   | TEL                    | TYPE      | fax          | RFC 6350,     |
   |                        |           |              | Section 6.4.1 |
   | TEL                    | TYPE      | cell         | RFC 6350,     |
   |                        |           |              | Section 6.4.1 |
   | TEL                    | TYPE      | video        | RFC 6350,     |
   |                        |           |              | Section 6.4.1 |
   | TEL                    | TYPE      | pager        | RFC 6350,     |
   |                        |           |              | Section 6.4.1 |
   | TEL                    | TYPE      | textphone    | RFC 6350,     |
   |                        |           |              | Section 6.4.1 |
   | BDAY, ANNIVERSARY      | CALSCALE  | gregorian    | RFC 6350,     |
   |                        |           |              | Section 5.8   |
   | RELATED                | TYPE      | contact      | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | acquaintance | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | friend       | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | met          | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |

   | RELATED                | TYPE      | co-worker    | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | colleague    | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | co-resident  | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | neighbor     | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | child        | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | parent       | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | sibling      | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | spouse       | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | kin          | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | muse         | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | crush        | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | date         | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | sweetheart   | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | me           | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   |                        |           |              | and [xfn]     |
   | RELATED                | TYPE      | agent        | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   | RELATED                | TYPE      | emergency    | RFC 6350,     |
   |                        |           |              | Section 6.6.6 |
   +------------------------+-----------+--------------+---------------+
      

             ---------                ---------
             |  RIR  |                |  NIR  |
             |  CA   |                |  CA   |
             ---------                ---------
                 |                        |
                 |                        |
                 |                        |
             ---------                ---------
             |  ISP  |                |  ISP  |
             |  CA 1 |                |  CA 2 |
             ---------                ---------
              |     \                      |
              |      -----                 |
              |           \                |
          ----------    ----------      ----------
          |  ISP   |    |  ISP   |      |  ISP   |
          |  EE 1a |    |  EE 1b |      |  EE 2  |
          ----------    ----------      ----------
              |             |               |
              |             |               |
              |             |               |
          ----------    ----------      ----------
          | ROA 1a |    | ROA 1b |      | ROA 2  |
          ----------    ----------      ----------
      

                         +--------+
              +--------->| Cert A |<----+
              |          | CRLDP  |     |
              |          |  AIA   |     |
              |  +--------- SIA   |     |
              |  |       +--------+     |
              |  |                      |
              |  |                      |
              |  |                      |
              |  |  +-------------------|------------------+
              |  |  |                   |                  |
              |  +->|   +--------+      |   +--------+     |
              |     |   | Cert B |      |   | Cert C |     |
              |     |   | CRLDP ----+   |   | CRLDP -+-+   |
              +----------- AIA   |  |   +----- AIA   | |   |
                    |   |  SIA   |  |       |  SIA   | |   |
                    |   +--------+  |       +--------+ |   |
                    |               V                  |   |
                    |           +---------+            |   |
                    |           | A's CRL |<-----------+   |
                    |           +---------+                |
                    | A's Repository Publication Directory |
                    +--------------------------------------+
      

                         +--------+
              +--------->| Cert A |<----+
              |          |  AIA   |     |
              |  +--------- SIA   |     |
              |  |       +--------+     |
              |  |                      |
              |  |  +-------------------|------------------+
              |  |  |                   |                  |
              |  +->|   +--------+      |   +--------+     |
              |     |   | Cert B |      |   | Cert C |     |
              |     |   | CRLDP-------+ |   | CRLDP-----+  |
              +----------- AIA   |    | +----- AIA   |  |  |
                    |   |  SIA------+ |     |  SIA------------+
                    |   +--------+  | |     +--------+  |  |  |
                    |               | V                 V  |  |
                    |               | +-----------------+  |  |
                    |               | | CRL issued by A |  |  |
                    | A's Repository| +-----------------+  |  |
                    | Directory     |                      |  |
                    +---------------|----------------------+  |
                                    |                         |
          +----------------+        |    +----------------+   |
          | B's Repository |<-------+    | C's Repository |<--+
          |  Directory     |             |  Directory     |
          +----------------+             +----------------+
      

   0          8          16         24        31
   .-------------------------------------------.
   | Protocol |   PDU    |                     |
   | Version  |   Type   |     Session ID      |
   |    0     |    0     |                     |
   +-------------------------------------------+
   |                                           |
   |                Length=12                  |
   |                                           |
   +-------------------------------------------+
   |                                           |
   |               Serial Number               |
   |                                           |
   `-------------------------------------------'
      

   0          8          16         24        31
   .-------------------------------------------.
   | Protocol |   PDU    |                     |
   | Version  |   Type   |     Session ID      |
   |    0     |    1     |                     |
   +-------------------------------------------+
   |                                           |
   |                 Length=12                 |
   |                                           |
   +-------------------------------------------+
   |                                           |
   |               Serial Number               |
   |                                           |
   `-------------------------------------------'
      

   0          8          16         24        31
   .-------------------------------------------.
   | Protocol |   PDU    |                     |
   | Version  |   Type   |    reserved = zero  |
   |    0     |    2     |                     |
   +-------------------------------------------+
   |                                           |
   |                 Length=8                  |
   |                                           |
   `-------------------------------------------'
      

   0          8          16         24        31
   .-------------------------------------------.
   | Protocol |   PDU    |                     |
   | Version  |   Type   |     Session ID      |
   |    0     |    3     |                     |
   +-------------------------------------------+
   |                                           |
   |                 Length=8                  |
   |                                           |
   `-------------------------------------------'
      

   0          8          16         24        31
   .-------------------------------------------.
   | Protocol |   PDU    |                     |
   | Version  |   Type   |     Session ID      |
   |    0     |    7     |                     |
   +-------------------------------------------+
   |                                           |
   |                 Length=12                 |
   |                                           |
   +-------------------------------------------+
   |                                           |
   |               Serial Number               |
   |                                           |
   `-------------------------------------------'
      

   0          8          16         24        31
   .-------------------------------------------.
   | Protocol |   PDU    |                     |
   | Version  |   Type   |    reserved = zero  |
   |    0     |    8     |                     |
   +-------------------------------------------+
   |                                           |
   |                 Length=8                  |
   |                                           |
   `-------------------------------------------'
      

   Cache                         Router
     ~                             ~
     | <----- Reset Query -------- | R requests data (or Serial Query)
     |                             |
     | ----- Cache Response -----> | C confirms request
     | ------- IPvX Prefix ------> | C sends zero or more
     | ------- IPvX Prefix ------> |   IPv4 and IPv6 Prefix
     | ------- IPvX Prefix ------> |   Payload PDUs
     | ------  End of Data ------> | C sends End of Data
     |                             |   and sends new serial
     ~                             ~
      

   Cache                         Router
     ~                             ~
     | -------- Notify ----------> |  (optional)
     |                             |
     | <----- Serial Query ------- | R requests data
     |                             |
     | ----- Cache Response -----> | C confirms request
     | ------- IPvX Prefix ------> | C sends zero or more
     | ------- IPvX Prefix ------> |   IPv4 and IPv6 Prefix
     | ------- IPvX Prefix ------> |   Payload PDUs
     | ------  End of Data ------> | C sends End of Data
     |                             |   and sends new serial
     ~                             ~
      

   Cache                         Router
     ~                             ~
     | <-----  Serial Query ------ | R requests data
     | ------- Cache Reset ------> | C cannot supply update
     |                             |   from specified serial
     | <------ Reset Query ------- | R requests new data
     | ----- Cache Response -----> | C confirms request
     | ------- IPvX Prefix ------> | C sends zero or more
     | ------- IPvX Prefix ------> |   IPv4 and IPv6 Prefix
     | ------- IPvX Prefix ------> |   Payload PDUs
     | ------  End of Data ------> | C sends End of Data
     |                             |   and sends new serial
     ~                             ~
      

   Cache                         Router
     ~                             ~
     | <-----  Serial Query ------ | R requests data
     | ---- Error Report PDU ----> | C No Data Available
     ~                             ~

   Cache                         Router
     ~                             ~
     | <-----  Reset Query ------- | R requests data
     | ---- Error Report PDU ----> | C No Data Available
     ~                             ~
      

     Phase 0    Phase 1   Phase 2             Phase 4  Phase 0
   --x--------x---------x-------------------x--------x---------
     ^        ^         ^                   ^        ^
     |        |         |                   |        |
    (1)      (2)       (3)                 (5)      (6)
      

               Phase 0              Phase 3   Phase 4  Phase 0
   -------------------------------x---------x--------x---------
     ^                            ^         ^        ^
     |                            |         |        |
    (1)                          (4)       (5)      (6)