Chapter 4 Service Configuration
Parameter
Description
hold
When ports are down, the dynamic ip-source-guard entries are
not deleted until the aging time is up.
drop
When the aging time is up or ports are down, the dynamic
ip-source-guard entries are deleted immediately.
Guidelines
When link status is unstable, port oscillation will cause user binding entries’ frequent
learning/aging. Users cannot communicate stably. To solve this problem, configure the
hold
property so that when the port status is changed, entries are not deleted until the
aging time is up.
Default
The default configuration is
drop
.
4.25.8 set dhcp option82 add/delete
Purpose
This command enables or disables the DHCP option82 function for the specified
ports/trunks.
Command Mode
Global configuration mode
Syntax
set dhcp option82
{
add
|
delete
}{
port
<
portlist
>|
trunk
<
trunklist
>}
Parameters
Parameter
Description
add
Enables the option82 function.
delete
Disables the option82 function.
port
<
portlist
>
Port list.
trunk
<
trunklist
>
Trunk list.
4.25.9 set dhcp option82 sub-option device
Purpose
This command sets the device identification information of a node used for option82.
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