Juniper JUNOSE 11.2.X MULTICAST ROUTING, Руководство по настройке

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Enabling Remote Loopback
You can enable remote loopback capability on frame-based T3 interfaces configured to
use C-bit framing. Remote loopback is
not supported on E3 ATM, E3 FRAME, and T3 ATM
interfaces.
For a list of the modules that support remote loopback, see ERX Module Guide , Appendix
A , Module Protocol Support .
To enable remote loopback:
1.
Change the clock source to internal.
host1(config-controll)# clock source internal module
2.
Ensure that the line is configured to use C-bit framing, which is the default for
frame-based T3 interfaces.
host1(config-controll)# framing c-bit
3.
Configure one of the following loopback tests:
•
Set the loopback to remote to request that a remote device connected on a T3
interface enter into a loopback.
host1(config-controll)# loopback remote
•
Configure the T3 interface to enable or disable the ability to enter into a loopback
initiated by a remote device, as follows:
• Issue the equipment customer loopback command to enable the router to
enter into loopback when it receives an appropriate signal from the remote
device.
host1(config-controll)# equipment customer loopback
•
Issue the equipment network loopback command to disable the ability to enter
into loopback initiated by a remote device.
host1(config-controll)# equipment network loopback
equipment loopback
•
Use to enable or disable the router’s ability to enter into a loopback initiated by a remote
device connected on a T3 interface.
NOTE: Remote loopback is available only on frame-based T3 interfaces configured to
use C-bit framing.
•
Specify one of the following loopback options:
•
customer —Enables the router to enter into loopback when it receives an appropriate
signal from the remote interface
Copyright © 2010, Juniper Networks, Inc. 62
JunosE 11.2.x Physical Layer Configuration Guide