IBM SC30-3681-08 Current send seq Vs, Current Rcv seq Vr, Last ACKd sent frame Va, Local Busy

Monitoring LLC

Current send seq (Vs)

Send state variable (Ns value for the next I-frame to be transferred).

Current Rcv seq (Vr)

Receive state variable (next in-sequence Ns to be accepted).

Last ACK'd sent frame (Va)

Acknowledged state variable (last valid Nr received).

No. of frames in ACK pend q

Number of transmitted I-frames waiting for acknowledgment.

No. of frames in transmit pend q

Number of frames waiting to be transmitted.

Local Busy

The local side of the LLC connection is sending RNRs.

Remote Busy

The remote side of the LLC is receiving RNRs.

Poll Retry count

Indicates the current value of the retry of the counter (counts down) in the LLC protocol.

Appl output ¯ow stopped

The LLC has told the application to stop giving it outgoing data frames.

Send process running

This process runs concurrently with all other frame actions and takes I-frames in the transmit queue and sends them.

Frames Xmt and Rcvd

Displays the total number of frame types transmitted (Xmt) and (Rcvd).

I-frames discarded by LLC

Counter that displays the total number of I-frames discarded by the

LLC, usually because the sequence number is out of sequence.

I-frames refused by LLC user

Counter that displays the number of I-frames discarded by the software above the LLC. For example, DLSw (Data Link Switching).

Set

Use the set command to dynamically con®gure the LLC parameters on a current LLC session. Any changes that you make to the parameters are effective for the life of session. These parameters are the same as those listed in ªSetº on page 237.

Attention: Changing LLC parameters from the default can affect how the LLC protocol works.

Syntax:
set	n2-max_retry count
	n3-frames-rcvd-before-ack count
	nw-acks-to-inc-ww count

244MRS V3.2 Software User's Guide