R3303-HP HSR6800 Routers Interface Command Reference

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Parameters
local: Enables the CT1 interface to perform local loopback.
payload: Enables the interface to perform external payload loopback.
remote: Enables the interface to perform remote loopback.
Usage guidelines
Loopback is mainly used to check the condition of interfaces or cables. Disable loopback in other cases.
You can bundle timeslots on a CT1 interface to form a serial interface and encapsulate it with PPP. After
you enable loopback on this serial interface, it is normal that the state of the link layer protocol is
reported down.
Examples
# Enabled remote loopback on interface T1 2/0/0.
<Sysname> system-view
[Sysname] controller t1 2/0/0
[Sysname-T1 2/0/0] loopback remote
reset counters controller t1
Use reset counters controller t1 to clear the controller counter for a CT1 interface.
Syntax
reset counters controller t1 interface-number
Views
User view
Default command level
2: System level
Parameters
interface-number: Interface number.
Usage guidelines
To display the value of the controller counter, use the display controller t1 command.
The reset counters interface command clears the counters of all interfaces. To clear the controller counter
of individual CT1 interfaces, use the reset counters controller t1 command.
Examples
# Clear the controller counter for CT1 interface T1 2/0/0.
<Sysname> reset counters controller t1 2/0/0
sendloopcode
Use sendloopcode to send remote loopback control code.
Syntax
sendloopcode { fdl-ansi-llb-down | fdl-ansi-llb-up | fdl-ansi-plb-down | fdl-ansi-plb-up |
fdl-att-plb-down | fdl-att-plb-up | inband-llb-down | inband-llb-up }