3Com 3031 Command Reference Manual page 392

3com 3031: reference guide

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x25 window-size

ltc htc: Lowest and highest two-way channels of X.25 VC, and its value ranges

from 0 to 4095. If htc (highest two-way channel) is set to 0, ltc (lowest two-way

channel) must also be set to 0, which indicates that the two-way channel section is

disabled. By default, the htc of X.25 VC is 1024.

lic hic: Lowest and highest incoming-only channels of X.25 VC, and its value

ranges from 0 to 4095.If hic (highest incoming-only channel) is set to 0, lic (lowest

incoming-only channel) must also be set to 0, which indicates that the

incoming-only channel section is disabled. By default, the hic in X.25 VC range is

loc hoc: Lowest and highest outgoing-only channels of X.25 VC, and its value

ranges from 0 to 4095. If hoc (highest outgoing-only channel) is set to 0, loc

(lowest outgoing-only channel) must also be set to 0, which indicates that the

outgoing-only channel section is disabled. By default, the hoc in X.25 VC range is

Using the x25 vc-range command, you can set highest and lowest values of X.25

VC range. Using the undo x25 vc-range command, you can restore their default

By default, VRP X.25 disables incoming-only channel range and outgoing-only

channel, and only the two-way channel range (1-1024) is reserved for use. Please

set the VC range correctly according to the requirements of the ISP.

Configure the link layer protocol on the interface Serial 0/0/0 to X.25, enable

incoming-only channel section and two-way channel section and disable outgoing

–only channel section. After executing a series of commands, the three sections

are [1, 7], [8, 1024] and [0, 0], respectively.

[3Com] interface serial 0/0/0

[3Com-Serial0/0/0] link-protocol x25

[3Com-Serial0/0/0] x25 vc-range in-channel 1 7 bi-channel 8 1024

x25 window-size input-window-size output-window-size

undo x25 window-size

Interface view

input-window-size: Size of input window. When X.25 window modulus is 8, its

value ranges from 1 to 7. When X.25 window modulus is 128, its value ranges

from 1 to 127.By default, its value is 2.