IBM SC30-3681-08 manual T2-receive-ack-timer, Ti-inactivity-timer, Tw-transmit-window

Con®guring LLC

Example:

set t1-reply-timer

Reply Timer (T1) in sec. [1]?

t2-receive-ack-timer

This timer is used to delay sending of an acknowledgment for a received I-format frame. This timer is started when an I-frame is received. The timer is reset when an acknowledgment is sent. If this timer expires, LLC2 sends an acknowledgment as soon as possible. Set this value so that it is less than that of T1. This insures that the remote LLC2 peer receives the delayed acknowledgment before the T1 timer expires. Default is 1 (100 ms). Minimum is 1. Maximum is 2560.

Example:

set t2-receive-ack-timer

Receive Ack timer (T2) in 100 millisec. [1]?

Note: If this timer is set to 1 (the default) it will not run (for example, n3-frames_rcvd-before-ack=1).

ti-inactivity-timer

This timer expires when the LLC does not receive a frame for a speci®ed time period. When this timer expires the LLC transmits an RR until the other LLC responds or the N2 retry count is exceeded. Default is 30 seconds. Minimum is 1 second. Maximum is 256 seconds.

Example:

set ti-inactivity-timer

Inactivity Timer (Ti) in sec. [30]?

tw-transmit-window

Sets the maximum number of I-frames that can be sent before receiving an

RR.Assuming that the other end of the LLC session can actually receive this many consecutive I-frames, and the router has enough heap memory to keep copies of these frames until an acknowledgment is received, increasing this value may increase the throughput. Default is 2. Minimum is 1. Maximum is 127.

Example:

set tw-transmit-window

Transmit Window (Tw), 127 Max. [2]?

Accessing the Interface Monitoring Process

Access the monitoring commands for the protocol you wish to monitor over LLC:

vToken Ring, as described in ªChapter 16. Con®guring IEEE 802.5 Token-Ring Network Interfacesº on page 225

vPoint-to-Point, as described in ªChapter 33. Con®guring and Monitoring Point-to-Point Protocol Interfacesº on page 465

vFrame Relay, as described in ªChapter 31. Con®guring and Monitoring Frame Relay Interfacesº on page 405

Each of these prompt levels has an LLC command. Enter LLC to access the LLC monitoring commands to monitor LCC. When you are ®nished, enterExit to return to the prompt level for the protocol you are monitoring.

238MRS V3.2 Software User's Guide