R2511-HP MSR Router Series Interface Command Reference(V5)

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[Sysname] interface serial 2/0
[Sysname-Serial2/0] mtu 1200
physical-mode
Use physical-mode to set the operating mode of the synchronous/asynchronous serial interface.
Syntax
physical-mode { async | sync }
Default
Synchronous/asynchronous serial interfaces are operating in synchronous mode.
Views
Synchronous/asynchronous serial interface view
Default command level
2: System level
Parameters
async: Sets the synchronous/asynchronous serial interface to operate in asynchronous mode.
sync: Sets the synchronous/asynchronous serial interface to operate in synchronous mode.
Examples
# Set synchronous/asynchronous serial interface 2/0 to operate in asynchronous mode.
<Sysname> system-view
[Sysname] interface serial 2/0
[Sysname-Serial2/0] physical-mode async
phy-mru
Use phy-mru to set the MRU for an asynchronous serial interface operating in flow mode.
Use undo phy-mru to restore the default.
Syntax
phy-mru size
undo phy-mru
Default
The MRU of an asynchronous serial interface is 1700 bytes.
Views
Asynchronous serial interface view, AUX interface view, AM interface view
Default command level
2: System level
Parameters
size: Maximum receive unit (MRU) to be set, in the range of 4 to 1700 bytes.
Usage guidelines
This command applies to only interfaces operating in the asynchronous flow mode.