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Administration for Network Connectivity
555-233-504 — Issue 1 — April 2000 CID: 77730
A Screens Reference
Retry Attempt
Counter (N2)
Specifies the number of times (0–7) to send one frame when this frame is not
confirmed for a period of time. Default is 2.
Frame Size (N1) Specifies the number of bytes (135–263) in a frame. Default is 135. If the value is
135, there can be up to 1080 bits within a frame. This value is suitable for all adjuncts
and for DCS.
Retransmission (T1)
Timer (1/10 seconds)
The T1 timer is started at the beginning or the end of the transmission of a frame. At
the end of this timer (0–250), retransmission of a frame is initiated according to the
procedures for link set-up and disconnection or information transfer. Default is 10.
Idle (T4) Timer (1/10
seconds)
The T4 timer is a system parameter that represents the time a DTE allows without
frames being exchanged on the data link (0–250). Default is 30.
Number of Outstanding
Packets
Specifies the number of packets (2–7) that can be sent without confirmation. Default
is 2.
Restart (T20) Timer
(seconds)
The T20 timer is a DTE time-limit (0–500) started when DTE issues a restart
indication and terminated when the restart request is received or confirmed. Default is
8.
Reset (T22) Timer
(seconds)
The T22 timer is a DTE time-limit (0–500) started when DTE issues a reset indication
and terminated when the reset request is received or confirmed. Default is 10.