H3C SR6602-X, Configuration Manual

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14
Configuring WAN interfaces
This chapter describes how to configure interfaces for connecting to WAN networks, including Frame
Relay and ATM. Available WAN interfaces include the synchronous serial interface, and CE1
interface.
Configuring a serial interface
Synchronous serial interface
Synchronous serial interfaces provide serial communication channels for synchronous data
transmission. The interface type name is
Serial .
A synchronous serial interface operates in DCE or DTE mode. Two directly connected synchronous
serial interfaces must operate in different modes.
•
In DCE mode, the interface provides timing for synchronization and sets the baud rate.
•
In DTE mode, the interface accepts the timing signal and baud rate from the DCE.
The synchronous serial interfaces on the device typically operate as DTE.
You can connect a synchronous interface to various types of cables, including V.24, V.35, and X.21.
Typically, the device can automatically recognize the cable type and select electrical properties.
The synchronous serial interface supports multiple data link layer protocols, including PPP, HDLC,
and Frame Relay. The interface supports network layer protocols, such as IP.
Configuring a synchronous serial interface
This section only describes the interface properties configuration. Depending on the network
requirements, you might also need to configure the data link layer protocol, IP address, firewall, and
interface backup.
Only serial interfaces on the MIM-2SAE, MIM-4SAE, and MIM-8SAE interface modules support the
following commands:
•
baudrate
•
code
•
detect dcd
•
detect dsr-dtr
•
invert receive-clock
•
invert transmit-clock
•
reverse-rts
•
virtualbaudrate
To configure a synchronous serial interface:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter synchronous serial
interface view.
interface serial interface-number N/A