Dell C9000 series, Reference Manual

Page: 153 / 2286

Version Description
8.1.1.0 Introduced on the E-Series ExaScale.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series and E-Series.
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
Timeout Timeout count
Retries Number of retransmissions
Msg Sent Number of messages sent
Ack Rcvd Number of messages acknowledged
Available Retra Number of retries left
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.
• A retry (Retries) value of zero indicates that the SWP mechanism reached the
maximum number of retransmissions without an acknowledgement.
Example
Dell#show processes ipc flow-control cp
Q Statistics on CP Processor
TxProcess RxProcess Cur High Time
Retr Msg Ack Aval Max
Len Mark Out
ies Sent Rcvd Retra Retra
DHCP0 ACL0 0 1 1
1 1 1 25 25
DHCP0 IPMGR0 0 0 0
0 0 0 25 25
DHCP0 IPMGR1 0 0 0
0 0 0 25 25
DHCP0 IFMGR0 0 0 0
Control and Monitoring 153