Dell C1048P Port Extender Networking Command-Line Reference Guide for the C900 - Page 130

Version 9.2(1.0) 8.3.19.0 8.3.12.0 8.3.11.1 8.1.1.0 7.6.1.0 7.5.1.0 Description Introduced on the Z9500. Introduced on the S4820T. Introduced on the S4810. Introduced on the Z9000. Introduced on the E-Series ExaScale. Introduced on the S-Series. Introduced on the C-Series and E-Series. Usage Information Field Source QID /Tx Process Destination QID/Rx Process Cur Len High Mark Timeout Retries Msg Sent Ack Rcvd Available Retra Max Retra Description Source Service Identifier Destination Service Identifier Current number of messages enqueued Highest number of packets in the queue at any time Timeout count Number of retransmissions Number of messages sent Number of messages acknowledged Number of retries left 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 Ack Aval Max Len Rcvd Retra Retra DHCP0 ACL0 0 1 1 25 25 DHCP0 IPMGR0 0 0 0 25 25 DHCP0 IPMGR1 0 0 0 25 25 DHCP0 IFMGR0 0 0 0 25 25 High Mark 1 0 0 0 Time Out 1 0 0 0 Retr ies 1 0 0 0 Msg Sent Control and Monitoring 130