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2                                                 Transport aspects


                       Table 9-15 – Reply to SRA request (SRA-R) command (sent by the FTU-O and FTU-R)

                  Field name             Format                              Description

             Command header       One byte: [00 aaaaaa]   aaaaaa = 0816
             SRA response data    One byte: [bbbb aaaa]   aaaa = SFDC (see clause 13.2.1.1.5) to the implementation of a
                                                        new baseline configuration. (Note 1)
                                                        bbbb = new SCCC as received by the OLR request or special
                                                        values SCCC=1111, 1110 and 1101 (see clause 11.2.2.5)
                                                        (Note 2).
             NOTE 1 – The reply to an SRA request shall be repeated in subsequent superframes with a decrementing superframe down
             count (SFDC) until the count reaches the value zero.
             NOTE 2 – The OLR request command may include updates to both NOI and DOI. However, the associated SRA-R command
             always includes one and only one SCCC value. The SRA-R shall use the following SCCC values:
             SCCC of the NOI if the OLR request related only to the NOI
             SCCC of the DOI if the OLR request related only to the DOI
             SCCC of the NOI if the OLR request related to both NOI and DOI. This SCCC shall be used to acknowledge the update over both
             NOI and DOI.


                                     Table 9-16 – Reply to RPA request (RPA-R) command

                   Field name             Format                              Description
             Command header        One byte: [00 aaaaaa]   aaaaaa = 0716
             RPA response data     One byte: [000b aaaa]   aaaa = RPA configuration change count (RCCC) indicated
                                                          in the received OLR command of OLR request type 4
                                                          (see Table 11-9).
                                                          b shall be set to 1 if the RMC parameters requested by
                                                          update RMC parameters command (see Table 11-9) are
                                                          invalid (a reject response), otherwise b shall be set to zero
                                                          (positive acknowledgement)
             NOTE – The command shall be repeated in subsequent logical frames until the superframe count value indicated in the RPA
             request is reached, see clause 13.2.1.3.3.


                   Table 9-17 – Upstream dynamic resource report (DRRus) command (sent by the FTU-R only)

                  Field name               Format                             Description

             Command header        One byte: [00 aaaaaa]   aaaaaa = 1016
             Resources metric      One to four bytes       The resources metric is up to four bytes long and shall be
                                                           conveyed transparently from the γR to the γO reference
                                                           point (see the DRRus.confirm primitive in Table 8-4). Annex
                                                           Y contains the resources metric definition, configuration
                                                           and representation.
             NOTE – A valid DRR configuration has to be set before sending DRRus for the first time, see clause 11.2.2.17.


















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