Command Manual – Getting Started
H3C VG Series Voice Gateways
Chapter 1 Fundamental Configuration Commands
1-20
1.3.10 loopback
Syntax
loopback
undo loopback
View
Ethernet interface view
Parameter
None
Description
Use the
loopback
command to enable loopback on the interface.
Use the
loopback
command to disable loopback on the interface.
By default, loopback is disabled on the interface.
Only for testing some special functions can loopback be set on the interface.
Example
# Enable loopback on the interface.
[VG-Ethernet0]loopback
1.3.11 mtu
Syntax
mtu
size
undo
mtu
View
Ethernet interface view
Parameter
size
: MTU size on the interface, in bytes. It ranges 512~1500 for Ethernet_II frames
and ranges 512-1500 for Ethernet_SNAP frames.
Description
Use the
mtu
command to configure or modify the MTU size on the interface.
Use the
undo mtu
command to reset the MTU size to the default value.
By default, the MTU is 1500 for Ethernet_II frames and 1492 for Ethernet_SNAP
frames.