Activating The Serial Interface; Configuring The Data Link Layer Protocol - HP ProCurve Secure 7000dl Series Basic Management And Configuration Manual

Configuring Serial Interfaces for E1- and T1-Carrier Lines
Serial Interface: Configuring the Physical Layer
5-14
If you enter the invert txclock command, the serial interface will invert the
transmit clock that is taken from the data stream. The serial interface inverts
the transmit clock before it transmits a signal.
If you enter the invert rxclock command, the serial interface will look for an
inverted receive clock in the data it receives from the CSU/DSU.

Activating the Serial Interface

To activate the serial interface, enter the following command from the serial
interface configuration mode context:
ProCurve(config-ser 1/1)# no shutdown
The serial interface should now be activated, and the physical interface should
be ready for data transfer.
By default, the ProCurve Secure Router immediately notifies you that the
interface is administratively up. It will take a few moments to establish the
serial connection, however. When the connection goes up, the ProCurve
Secure Router displays another message at the CLI, reporting that the serial
interface is up. If you want to disable this reporting function, enter no events
from the enable mode context.

Configuring the Data Link Layer Protocol

You must configure the serial interface to use the same Data Link Layer
protocol that your public carrier is using. For information about configuring
the protocol, see Chapter 6: Configuring the Data Link Layer Protocol
for E1, T1, and Serial Interfaces.