
668 Cltapter13 Network Management
Report-State messages followed by a notification that it has finished. Finally,
the client has finished with activities for which it made the policy request and
so notifies the server (step 5).
13.9.3 COPS Message Formats
All COPS messages begin with a common header, as shown in Figure 13.18.
The current version of COPS is version one, and this is given in the first field of
the message. The S-bit is set to show that the current message was solicited by
a previous COPS message. The Opcode field shows the operation that this mess-
age is performing--that ...