HP ProCurve 7000dl Series Basic Management And Configuration Manual page 272

Configuring E1 and T1 Interfaces
Quick Start
N o t e
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10. For T1 interfaces only, configure the line build out (lbo). If the cable
connecting the T1 interface to the wall jack is longer than 655 feet, use
the following lbo command:
Syntax: lbo long <value>
Replace <value> with one of the following numbers, which are in decibels
(db):
• -22.5
• -15
• -7.5
• 0
If the cable connecting the T1 interface to the wall jack is shorter than 655
feet, use the following lbo command:
Syntax: lbo short <value>
Replace <value> with the actual number of feet. For example, if the cable
is 100 feet, enter:
ProCurve(config-t1 1/1)# lbo short 100
11. Activate the interface.
ProCurve(config-e1 1/1)# no shutdown
or
ProCurve(config-t1 1/1)# no shutdown
12. View the status of the E1 or T1 interface.
ProCurve(config-e1 1/1)# do show interface e1 1/1
or
ProCurve(config-t1 1/1)# do show interface t1 1/1
The do command enables you to enter enable mode commands (such as show
commands) from any context.
By default, the ProCurve Secure Router immediately notifies you that the
interface is administratively up. It will take a few moments to establish the E1
or T1 connection, however. When the connection goes up, the ProCurve
Secure Router displays another message at the command line interface (CLI),
reporting that the line is up. If you want to disable this reporting function,
enter no events from the enable mode context.
You must now configure the Data Link Layer protocol for the E1 or T1
interface. For information about configuring this protocol, see Chapter 6:
Configuring the Data Link Layer Protocol for E1, T1, and Serial Interfaces.