When the BDC is terminated, successfully or not, minimal general logging is performed on carrier connections, for diagnsotic purposes. No logging is performed of anonuser and authuser connections. This information is then transferred in a timely manner to all other carriers. For carriers, this is the information client software uses to determine features supported. The data handling section is used by carriers to specify how messages are to be sent to them by clients and servers.
Servers update their own configuration files by sending the signed file to the carrier.
Servers automatically update their keyrings based on the current config file, removing revoked keys. Servers update their own configuration files by sending the signed file to the carrier. Servers and clients may request a list of carrier config files held by any carrier, and available carrier config files may be downloaded. Like BDC, BEC messages are encrypted to the public key of the server. These are fixed-size packets.