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Table 21. Configuration Parameter List - Port default LLC Characteristics (continued)
Parameter Information
Parameter
Inactivity timer (Ti)
Valid Values
1 to 254 seconds
Default Value
30 seconds
Description
This parameter specifies the LLC inactivity timer (Ti) for all link stations on this port.
An LLC link station uses Ti to detect an inoperative condition in either the remote link
station or in the transmission media. If an LPDU is not received in the time interval
specified by Ti, an S-format command LPDU with the poll bit set is transmitted to solicit
remote link station status. Recovery is then based on the reply timer (T1).
Parameter
Reply timer (T1)
Valid Values
1 to 254 half-seconds
Default Value
2 half-seconds
Description
This parameter specifies the LLC reply timer (T1) for all link stations on this port.
An LLC link station uses T1 to detect a failure to receive a required acknowledgment or
response from the remote link station. When T1 expires, the link station sends an
S-format command link layer protocol data unit (LPDU) with the poll bit set to solicit
remote link station status or any U-format command LPDUs that have not been
responded to. The duration of T1 should take into account any delays introduced by
underlying layers.
Parameter
Maximum number of retransmissions (N2)
Valid Values
1to254
Default Value
8
Description
This parameter specifies the maximum number of retransmissions (N2) for all link
stations on this port.
The N2 parameter specifies the maximum number of times an LPDU will be
retransmitted following expiration of the reply timer (T1).
APPN Configuration Commands
Chapter 2. Configuring and Monitoring APPN 147