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idle-mark
Syntax idle-mark
undo idle-mark
View Synchronous serial interface view
Parameter None
Description Use the
idle-mark command to configure the idle-time encoding scheme of the
synchronous serial interface to be 0xFF.
Use the
undo idle-mark command to restore the default setting.
By default, the synchronous serial interface uses “0x7E” to indicate its idle state.
While most SDLC devices use “0x7E” (flags) to indicate “idle” space between
frames, some other SDLC devices use “0xFF” (marks) for this indication. For
compatibility with different types of devices, you can configure the router to send
either flags (default) or marks to indicate its idle state. When the synchronous
serial interface is connected with an AS/400 device, you need to change the
idle-time encoding scheme by using this command to improve the speed of polling
the AS/400 device.
Example # Configure synchronous serial interface Serial 2/0 to send 0xFF to indicate idle
space between frames.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] idle-mark
link-protocol sdlc
Syntax link-protocol sdlc
View Synchronous serial interface view
Parameter None
Description Use the
link-protocol sdlc command to configure the synchronous serial
interface to use SDLC as link layer encapsulation protocol.
By default, the default link layer protocol is PPP.
For SNA, SDLC is a link layer protocol, working very similarly as HDLC. To ensure
that DLSw works normally, you need to enable SDLC as the link layer
encapsulation protocol on the synchronous serial interface.