MM1 and MM7 client comforting steps
Since MM1 and MM7 messages use HTTP, MM1 and MM7 client comforting operates like HTTP client comforting.
The following steps show how client comforting works for a download of a 1 Mbyte file with the client comforting interval set to 20 seconds and the client comforting amount set to 512 bytes.
1. The client requests the file.
2. The Carrier-enabled FortiGate unit buffers the file from the server. The connection is slow, so after 20 seconds about one half of the file has been buffered.
3. The Carrier-enabled FortiGate unit continues buffering the file from the server, and also sends 512 bytes to the client.
4. After 20 more seconds, the FortiGate unit sends the next 512 bytes of the buffered file to the client.
5. When the file has been completely buffered, the client has received the following amount of data:
ca * (T/ci) bytes == 512 * (40/20) == 512 * 2 == 1024 bytes,
where ca is the client comforting amount, T is the buffering time and ci is the client comforting interval.
6. If the file does not contain a virus, the Carrier-enabled FortiGate unit sends the rest of the file to the client. If the file is infected, the FortiGate closes the data connection but cannot send a message to the client.