Cisco Cisco Firepower Management Center 2000 Guia Do Programador

Client authentication fails (no error message is sent).

eStreamer service is shutting down (no error message is sent).

Your client can close the connection to eStreamer server at any time and should attempt to use the error 
message format to notify the eStreamer server of the reason.

The eStreamer application protocol uses a simple message format that includes a standard message 
header and various sub-header fields followed by the record data which contains the message’s payload. 
The message header is the same in all eStreamer message types; for more information, see 

.

0

Null message

Both the eStreamer server and the client send null messages 
to control data flow. For information, see 

.

1

Error message

Both the eStreamer server and the client use error messages 
to indicate why a connection closed. For information, see 

.

2

Event Stream Request A client sends this message type to the eStreamer service to 

initiate a new streaming session and request data. For 
information, see 

4

Event Data

The eStreamer service uses this message type to send event 
data and metadata to the client. For information, see 

5

Host Data Request

A client sends this message type to the eStreamer service to 
request host data. A session must be started already via an 
Event Stream Request message. For information, see 

6

Single Host Data

The eStreamer service uses this message type to send single 
host data requested by the client. For information, see 

.

7

Multiple Host Data

The eStreamer service uses this message type to send 
multiple host data requested by the client. For information, 
see 

2049

Streaming Request

A client uses this message type in extended requests to 
specify which of the advertised events from the Stream 
Information message it wants. For information, see