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Description Use the x25 vc-range command to set the upper and lower limits of X.25 VC
range.
Use the
undo x25 vc-range command to restore their default values.
By default, the upper and lower limits of two-way channel are 1 and 1024, of
incoming-only channel are both 0, and of outgoing-only channel are both 0.
By default, X.25 bans the incoming-only and outgoing-only channel sections and
reserves only the double direction channel section (in the range 1 to 1024). Please
configure the range correctly according to your ISP’s requirement.
Example # Configure the incoming-only, two-way and outgoing-only channel ranges as [1,
7], [8, 1024] and [0, 0] respectively.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] x25 vc-range in-channel 1 7 bi-channel 8 1024
x25 window-size
Syntax x25 window-size input-window-size output-window-size
undo x25 window-size
View Interface view
Parameter input-window-size: Size of input window. When X.25 window modulo is 8, its
value ranges from 1 to 7. When X.25 window modulo is 128, its value ranges
from 1 to 127.
output-window-size: Size of output window. When X.25 window modulo is 8, its
value ranges from 1 to 7. When X.25 window modulo is 128, its value ranges
from 1 to 127.
Description # Set calling request (indication) sending timer on the X.25 interface Serial2/0 to
100 seconds.
Use the
undo x25 window-size command to restore their default values.
The default sizes are both 2.
The input-window-size determines the maximum number of correctly received
packets before X.25 sends the acknowledgement information. As long as the
bandwidth allows, the greater the window size, the higher the transmission
efficiency.
The parameter out-window-size determines the maximum number of data
packets sent by X.25 before it receives the correct acknowledgment information.
As long as the bandwidth allows, the greater the window size, the higher the
transmission efficiency.