Brocade Virtual ADX MIB Reference (Supporting ADX v03.1.00) User Manual
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Brocade Virtual ADX MIB Reference
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Real server objects
snL4RealServerStatisticState
brcdIp.1.1.4.23.1.1.8
Syntax: Integer
Read only Shows the operational state of the real server when the
statistics were obtained:
•
disabled(0) – This value has been deprecated and is
not used.
•
enabled(1) – There is no link to the real server. The
real server is configured on the ServerIron but is not
physically connected to the ServerIron.
•
failed(2) – The server has failed to respond to
repeated Layer 3 health checks (IP pings). Typically, a
real server changes to the failed(2) state from the
suspect(4) state.
•
testing(3) – The real server is still reachable at Layer
3, but at least one of the application ports on the real
server has failed to respond to its health checks. If the
application port is not a TCP or UDP port known to the
ServerIron, or if the Layer 7 health check for the port
is disabled, only the Layer 4 health check is used. If
the service is a TCP or UDP port known to the
ServerIron and the Layer 7 health check is enabled,
then the application must pass both health checks to
avoid entering the testing(3) state. The ServerIron
continues to try to reach the application indefinitely. If
the server continues to be reachable at Layer 3, the
state will remain testing(3) as long as the ServerIron
cannot reach the application that is failing its health
check.
•
suspect(4) – The ServerIron associates a time stamp
with each packet sent to and received from the real
servers. If the time gap between the last packet
received from the real server and the last packet sent
to the real server increases to three or four seconds,
the ServerIron sends a Layer 3 health check (ping) to
the real server. If the real server does not respond
within the ping interval (configured in the
object), the ServerIron changes
the state to suspect(4) and resends the ping, up to the
number of retries specified by the
object. If the server still doesn't respond after all the
retries, the state changes to failed(2). If the server
does respond, the state changes to active(6).
•
shutdown(5) – The forced-shutdown option has been
used to gracefully shut down the real server.
•
active(6) – The real server has responded to the Layer
3 health check (IP ping) and all the services on the
real server have passed their Layer 4, and if
applicable, Layer 7) health checks.
snL4RealServerStatisticReassignments
brcdIp.1.1.4.23.1.1.9
Syntax: Integer
Read only Shows the number of times the ServerIron has reassigned
the connection to another real server in the rotation
because the real server that is in use has not responded to
two TCP SYNs from the client.
snL4RealServerStatisticReassignmentL
imit
brcdIp.1.1.4.23.1.1.10
Syntax: Integer
Read only Shows the number of missed connection requests (TCP
SYN) the ServerIron accepts before moving the connection
to another ServerIron.
Name, OID, and Syntax
Access
Description