AMQP Specification Transport
AMQP Specification Transport
AMQP Specification Transport
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<strong>AMQP</strong> <strong>Specification</strong>.<br />
Framing<br />
2.3 Frame Body<br />
The frame body encodes a command or control operation. The operation is encoded as a struct that identifies<br />
both the command or control being sent, as well as the field values for the operation. The encoding of a<br />
struct is fully defined in the basic-types section.<br />
+-------------------------------------------+<br />
24 | op-size |<br />
+-------------------------------------------+<br />
28 | op-code | field-packing-flags |<br />
+-------------------------------------------+<br />
32 | fields |<br />
| : |<br />
| : |<br />
+-------------------------------------------+<br />
2.4 Empty Frames<br />
Empty control frames are used to generate artificial traffic as needed to satisfy the negotiated heartbeat<br />
interval.<br />
Empty command frames are used to exchange session state variables without sending an additional<br />
command. The sync bit when set on an empty command frame is semantically equivalent to retroactively<br />
setting the sync flag on the preceeding command.<br />
<strong>AMQP</strong> <strong>Transport</strong> v. 1-0 Page 5 of 83
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