Loopback; Mtu - Huawei Quidway S8500 Series Command Manual

Command Manual – Port
Quidway S8500 Series Routing Switches
(for S8505), or 0 to 3 and 6 to 9 (for S8508), or 0 to 5 and 8 to 13 (for S8512); daughter
card slot ID refers to the ID of the slot for daughter, with the value of 1; port ID refers to
the sequence number on the LPU for the port, in the range of 1 to 4.
Description
Use the interface pos command to enter POS port view. To initiate POS port
configuration, you need first enter POS port view.
Example
# Enter POS2/1/1 port view.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
[Quidway] interface pos 2/1/1

3.1.9 loopback

Syntax
loopback { internal | external }
undo loopback
View
POS port view
Parameter
internal: Enables internal loopback at the POS port.
external: Enables external loopback at the POS port.
Description
Use the loopback command to define loopback type at the POS port.
Use the undo loopback command to disable POS port loopback.
By default, both internal loopback and external loopback are disabled.
Example
# Set internal loopback at POS2/1/1.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
[Quidway] interface pos2/1/1
[Quidway-Pos2/1/1] loopback local

3.1.10 mtu

Chapter 3 POS Port Configuration Commands
Huawei Technologies Proprietary
3-9