R3102-R3103-HP 6600/HSR6600 Routers Interface Command Reference

72
Default command level
2: System level
Usage guidelines
When you modify parameters on a WAN interface, execute the shutdown command, and then the undo
shutdown command to make your modifications take effect.
Examples
# Shut down serial interface Serial 1/2/0.
<Sysname> system-view
[Sysname] interface serial 1/2/0
[Sysname-Serial1/2/0] shutdown
Serial interface configuration commands
baudrate
Use baudrate to set the baud rate for a serial interface.
Use undo baudrate to restore the default.
Syntax
baudrate baudrate
undo baudrate
Default
The baud rate is 64,000 bps on a synchronous serial interface.
Views
Synchronous serial interface view
Default command level
2: System level
Parameters
baudrate: Baud rate (in bps) to be set for a serial interface.
Usage guidelines
The following are the baud rates available with synchronous serial interfaces:
1,200 bps, 2,400 bps, 4,800 bps, 9,600 bps, 19,200 bps, 38,400 bps, 56,000 bps, 57,600 bps,
64,000 bps, 72,000 bps, 115,200 bps, 128,000 bps, 192,000 bps, 256,000 bps, 384,000 bps,
512,000 bps, 1,024,000 bps, 2,048,000 bps, and 4,096,000 bps.
The baud rate range available with synchronous serial interfaces depends on the applied physical
electric specifications.
• For V.24 DTE/DCE, the baud rate available ranges from 1,200 bps to 64,000 bps.
• For V.35 DCE/DCE, X.21 DTE/DCE, EIA/TIA-449 DTE/DCE, and EIA-530 DTE/DCE, the available
baud rate ranges from 1,200 bps to 4,096,000 bps.
Take the physical electric specifications of the cable into consideration when setting the baud rate for a
serial interface.