Configuring Wan Interfaces; Configuring A Synchronous Serial Interface - HP HSR6800 Configuration Manual

Configuring WAN interfaces

In terms of link type, wide area networks (WANs) include Frame Relay (FR) and ATM. Routers are
designed with the synchronous serial interface, ATM interface, and CE1 interface.
The system supports the synchronous serial interface, CE1 interface, CT1 interface, CE3 interface, and
CT3 interface.

Configuring a synchronous serial interface

A synchronous serial interface has the following features:
Works in either DTE or DCE mode. Typically, the synchronous serial interfaces on the device are
•
used as DTE to accept the clock provided by DCE.
Supports various types of cables, including V.24, V.35, X.21, RS449, and RS530. The device can
•
automatically detect the type of connected cables and select electrical properties. In most cases,
you do not need to configure them manually.
• Supports link layer protocols such as PPP and FR.
Supports IP for the network layer.
•
To display the cable type, operating mode (DTE or DCE), and other settings of synchronous serial
interfaces, use the display interface serial command.
To configure a synchronous serial interface:
Step
1. Enter system view.
2. Enter synchronous serial
interface view.
3. Set the interface description.
4. Set the link layer protocol.
5. Set the digital signal coding
format.
6. Set the baud rate.
Command
system-view
interface serial interface-number
description text
link-protocol { fr | hdlc | ppp }
code { nrz | nrzi }
baudrate baudrate
virtualbaudrate virtualbaudrate
23
Remarks
N/A
N/A
Optional.
By default, the description of a
synchronous serial interface is
interface name Interface, for
example, Serial1/2/0 Interface.
Optional.
The default is PPP.
Optional.
The default is non-return-to-zero
(NRZ).
Optional.
The default is 64,000 bps.