Filter
Top Products
124 CHAPTER 10: CONFIGURING WAN INTERFACE
■ Enable or disable level detection
■ Enable or disable data carrier detection
■ Setting the synchronous serial interface to work in full duplex or half duplex
mode
■ Enable or disable internal loopback/external loopback
■ Set MTU
■ Set the time interval for sending keepalive packets
■ Set the idle coding of synchronous serial interface
PPP/X.25/FR parameters, BDR parameters, IP address, firewall parameters and
standby center parameters should be configured on the synchronous serial
interface if needed. Refer to the relevant chapters in this manual for details.
1 Set the synchronous/asynchronous serial interface to work in synchronous mode.
Before further configuration, please set the synchronous/asynchronous serial
interface to work in synchronous mode with the following command in the view
of synchronous/asynchronous serial interface.
Table 109 Set the synchronous/asynchronous serial interface to work in synchronous
mode
The synchronous/asynchronous serial interface works in synchronous mode by
default.
2 Enter the view of the specified synchronous serial interface
In all views, enter the view of the specified synchronous serial interface with the
following command.
Table 110 Enter view of specified synchronous interface
3 Set link layer protocol
The link layer protocol of synchronous serial interface can be set to PPP, LAPB,
X.25, Frame Relay, HDLC or SDLC.
Please use the following command in the view of the synchronous serial interface.
Table 111 Set the link layer protocol of synchronous serial interface
Select PPP link layer protocol by default.
4 Set the digital signal encoding format
The synchronous serial interface support two digital signal encoding formats: NRZ
(nonreturn to zero) and NRZI (nonreturn to zero, inverted).
Operation Command
Set the synchronous/asynchronous serial interface in
synchronous mode.
physical-mode sync
Operation Command
Enter the view of the specified synchronous/asynchronous
serial interface (which has been set to work in synchronous
mode)
interface serial number
Operation Command
Set link layer protocol link-protocol { fr | hdlc |
lapb | ppp | sdlc | x25 }