Lapb Window-Size; Link-Protocol Lapb - 3Com 3C13618 Command Reference Manual

3Com Router Command Reference Guide — V1.00
When T2 timer expires, DTE (DCE) will send an acknowledgement, which will enable
peer DTE(DCE) to receive it before its T1 timer expires(T2<T1).
When T3 timer expires, DCE will report to packet layer that VC has been idle for a long
time(T3>T1). T3 timer of 0ms means this timer will never take effect.
Example
# Set the T1 retransmission timer on Serial0 to 1000ms.
[3Com-Serial0]lapb timer t1 1000

5.1.16 lapb window-size

Syntax
lapb window-size k-value
undo lapb window-size
View
Interface view
Parameter
k-value: maximum permissible number of outstanding frames to be determined by the
DTE or DCE. If the modulo size is 8, then the window parameter K ranges 1 through 7;
if the modulo size is 128, the window parameter K ranges 1 through 127.
Description
Using the lapb window-size command, you can configure the LAPB window
parameter K. Using the undo lapb window-size command, you can restore the default
value of LAPB window parameter K.
By default, K is 7 frames.
The value of the window parameter K needs to be determined by the modulo size.
For related commands, see lapb modulo.
Example
# Set the LAPB window parameter K as 7 on Serial0.
[3Com-Serial0]lapb window-size 7

5.1.17 link-protocol lapb

Syntax
link-protocol lapb [ dte | dce ] [ ip | multi-protocol]
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