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ASAI Maintenance Capabilities
11-2 Issue 7 May 1998
Heartbeat
This capability enables the adjunct or the ECS to send an
application-to-application message and receive a response in order to determine
the sanity of the application on the remote endpoint.
Information Flow
The sender expects a response to its request.
The ECS responds to the Heartbeat within 60 seconds.
The ECS sends the Heartbeat message over each established signaling link to an
adjunct every two minutes. The adjunct is required to respond to the ECS within
ten seconds. Failure to respond to three consecutive heartbeats results in the
ECS bringing the link down and attempting to bring it back up again.
Heartbeat Parameters
None for this capability
ACK (Positive Acknowledgement) Parameters
No parameters are contained in the acknowledgement for this capability.
Denial (NAK) Causes
None for this capability
Protocol Error (NAK) Cause
None for this capability