Loopback - HP E4510-48G Command Reference Manual

Description
Use the link-delay command to configure the suppression time of physical-link-state changes on an
Ethernet port.
Use the undo link-delay command to restore the default suppression time.
By default, the physical-link-state change suppression time is not configured.
Examples
# Set the up/down suppression time of the physical connection of an Ethernet port to 8 seconds.
<Sysname> system-view
[Sysname] interface GigabitEthernet 1/0/1
[Sysname-GigabitEthernet1/0/1] link-delay 8

loopback

Syntax
loopback { external | internal }
undo loopback
View
Ethernet port view
Default Level
2: System level
Parameters
external: Enables external loopback testing on an Ethernet port.
internal: Enables internal loopback testing on an Ethernet port.
Description
Use the loopback command to enable Ethernet port loopback testing.
Use the undo loopback command to disable Ethernet port loopback testing.
By default, Ethernet port loopback testing is disabled.
Ethernet port loopback testing should be enabled while testing certain functionalities, such as
during the initial identification of any network failure.
While enabled, Ethernet port loopback testing will work in full-duplex mode. The interface will
return to its original state upon completion of the loopback testing.
Examples
# Enable loopback testing on GigabitEthernet 1/0/1.
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