HP A5830 Series Command Reference Manual page 192

When the device executes the port isolate-user-vlan promiscuous command, the following guidelines
apply:
HP recommends assigning access or hybrid ports to an isolate-user-VLAN.
Before configuring the isolate-user-VLAN type of a port as promiscuous in an isolate-user-VLAN,
make sure that the VLAN has been created.
If the port is an access port and the specified VLAN is an isolate-user-VLAN associated with
secondary VLANs, the device changes the link type of the port to hybrid, sets the isolate-user-VLAN
as the PVID of the port, and assigns the port to the associated secondary VLANs.
If the port is a trunk or hybrid port, the device assigns the port to the isolate-user-VLAN and the
associated secondary VLANs without changing the link type and PVID of the port.
A hybrid port (original hybrid or changed from access) will send packets of the specific VLAN and
any associated secondary VLANs untagged. The existing VLAN settings on the port are not
changed.
When you use the port isolate-user-vlan promiscuous command on a port that operates in promiscuous
mode, the device automatically executes the undo port isolate-user-vlan command to cancel the
promiscuous mode of the port first.
The undo port isolate-user-vlan command does not remove a port from secondary VLANs or change its
link type and PVID, does not remove an access port from the specific VLAN, but removes a trunk or
hybrid port from the specific VLAN.
You can configure the port isolate-user-vlan promiscuous command and the isolate-user-vlan enable
command in any order.
Syntax
port isolate-user-vlan vlan-id promiscuous
undo port isolate-user-vlan
View
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Default level
2: System level
Parameter
vlan-id: Specifies a VLAN ID, in the range of 1 to 4094, excluding VLAN 1.
Examples
# Configure access port GigabitEthernet 1/0/1 to operate in promiscuous mode in isolate-user-VLAN 2,
which is associated with secondary VLAN 20, and then cancel the configuration.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] display this
#
interface GigabitEthernet1/0/1
port link-mode bridge
#
return
[Sysname-GigabitEthernet1/0/1] port isolate-user-vlan 2 promiscuous
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