Show processes ipc flow-control – Dell PowerEdge FX2/FX2s User Manual

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show processes ipc flow-control

Display the single window protocol queue (SWPQ) statistics.

Syntax

show processes ipc flow-control [cp]

Parameters

cp

(OPTIONAL) Enter the keyword cp to view the control
processor’s SWPQ statistics.

Defaults

none

Command
Modes

• EXEC
• EXEC Privilege

Command
History

Version 9.4(0.0)

Supported on the FN I/O aggregator.

Usage
Information

Field

Description

Source QID /Tx
Process

Source Service Identifier

Destination
QID/Rx Process

Destination Service Identifier

Cur Len

Current number of messages enqueued

High Mark

Highest number of packets in the queue at any time

#of to / Timeout

Timeout count

#of Retr /Retries

Number of retransmissions

#msg Sent/Msg
Sent/

Number of messages sent

#msg Ackd/Ack
Rcvd

Number of messages acknowledged

Retr /Available
Retra

Number of retries left

Total/ Max Retra

Number of retries allowed

Important Points:

• The SWP provides flow control-based reliable communication between the

sending and receiving software tasks.

• A sending task enqueues messages into the SWP queue3 for a receiving task

and waits for an acknowledgement.

• If no response is received within a defined period of time, the SWP timeout

mechanism resubmits the message at the head of the FIFO queue.

• After retrying a defined number of times, the SWP-2-NOMORETIMEOUT timeout

message is generated.

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