R3303-HP HSR6800 Routers Interface Command Reference

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Default
Loopback is disabled.
Views
CE1 interface view
Default command level
2: System level
Parameters
local: Sets the interface in local loopback mode.
remote: Sets the interface in external loopback mode.
payload: Sets the interface in external payload loopback mode.
Usage guidelines
Loopback is mainly used to check the condition of interfaces or cables. Disable loopback in other cases.
You can bundle timeslots on the CE1 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 as down.
Examples
# Set interface E1 2/0/0 in internal loopback mode.
<Sysname> system-view
[Sysname] controller e1 2/0/0
[Sysname-E1 2/0/0] loopback local
reset counters controller e1
Use reset counters controller e1 to clear the controller counter for a CE1 interface.
Syntax
reset counters controller e1 interface-number
Views
User view
Default command level
2: System level
Parameters
interface-number: Interface number.
Usage guidelines
To display the information of the controller counter, use the display controller e1 command.
The reset counters interface command clears the counters of all interfaces. To clear the controller counter
of individual CE1 interfaces, use the reset counters controller e1 command.
Examples
# Clear the controller counter for CE1 interface E1 2/0/0.
<Sysname> reset counters controller e1 2/0/0