HP FlexNetwork NJ5000, Руководство пользователя

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In a safe network, you can configure the voice VLANs to operate in normal mode, reducing the
consumption of system resources due to source MAC addresses checking.
Hewlett Packard Enterprise recommends not transmitting both voice packets and non-voice packets
in a voice VLAN. If you have to, first make sure that the voice VLAN security mode is disabled.
Table 54 How a voice VLAN-enable port processes packets in security/normal mode
Voice VLAN operating
mode
Packet type Packet processing mode
Security mode
Untagged packets If the source MAC address of a
packet matches an OUI address
configured for the device, it is
forwarded in the voice VLAN;
otherwise, it is dropped.
Packets carrying the voice VLAN tag
Packets carrying other tags
If the packet is a voice packet
does not carry the voice VLAN tag
or PVID tag, the packet is
dropped. Otherwise, the packet is
forwarded or dropped depending
on whether the port allows
packets of these VLANs to pass
through.
Normal mode
Untagged packets The port does not check the
source MAC addresses of
inbound packets. All types of
packets can be transmitted in the
voice VLAN.
Packets carrying the voice VLAN tag
Packets carrying other tags
Forwarded or dropped depending
on whether the port allows
packets of these VLANs to pass
through
Recommended voice VLAN configuration
procedure
Before configuring the voice VLAN, you must create the VLAN and configure the link type of each
port to be assigned to the VLAN. Because VLAN 1 is the system-default VLAN, you do not need to
create it; however, you cannot configure it as the voice VLAN. For information about port link types,
see "
Managing ports ."
Recommended configuration procedure for a port in automatic voice VLAN assignment
mode
Step Remarks
1.
Configuring voice VLAN globally
(Optional.)
Configure the voice VLAN to operate in security mode and configure
the aging timer
2.
Configuring voice VLAN on
ports
(Required.)
Configure the voice VLAN assignment mode of a port as automatic
and enable the voice VLAN function on the port.
By default, the voice VLAN assignment mode of a port is automatic,
and the voice VLAN function is disabled on a port.
3.
Adding OUI addresses to the (Optional.)