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ï‚· In manual mode, you need to manually assign an IP phone accessing port to a voice VLAN. Then,
the system matches the source MAC addresses carried in the packets against the device’s OUI
addresses. If a match is found, the system issues ACL rules and configures the packet precedence.
In this mode, assigning ports to and removing ports from a voice VLAN are performed manually.
Both modes forward tagged packets according to their tags.
Table 59 lists the relationships between the voice assignment VLAN mode, the voice traffic type of an IP
phone, and the port link type.
Table 59 Co-relation
Voice VLAN
assignment
mode
Voice traffic
type
Port link t
Access Trunk Hybrid
Automatic
mode
Tagged voice
traffic
Not supported
Supported, but you must
ensure that the PVID of
the port has been
created and is not the
voice VLAN and the
traffic of the PVID can
pass through the port.
Supported, but you must
ensure that the PVID of the
port has been created and is
not the voice VLAN and the
traffic of the PVID can pass
through the port tagged.
Untagged
voice traffic
Not supported
Not supported
Not supported
Manual
mode
Tagged voice
traffic
Not supported
Supported, but you must
ensure that the PVID of
the port has been
created and is not the
voice VLAN and the
traffic of the PVID can
pass through the port.
Supported, but you must
ensure that the PVID of the
port has been created and is
not the voice VLAN and the
traffic of the voice VLAN can
pass through the port
tagged.
Untagged
voice traffic
Supported, but
you must
configure the PVID
of the port as the
voice VLAN.
Supported, but you must
configure the PVID of
the port as the voice
VLAN and configure the
port to allow the traffic
of the voice VLAN to
pass through.
Supported, but you must
configure the PVID of the port
as the voice VLAN and
configure the port to allow
the traffic of the voice VLAN
to pass through untagged.
NOTE:
If an IP phone sends tagged voice traffic and its accessing port is confi
ured with 802.1X authentication
and guest VLAN, you must assign different VLAN IDs for the voice VLAN, the port VLAN ID (PVID) of
the accessing port, and the 802.1X guest VLAN.
If an IP phone sends untagged voice traffic, to implement the voice VLAN feature, you must confi
ure the
PVID of the IP phone’s accessing port as the voice VLAN. As a result, 802.1X authentication cannot be
implemented.
Security mode and normal mode of voice VLANs
Depending on their inbound packet filtering mechanisms, voice VLAN-enabled port can operate in the
following modes:
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