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17 VLANs
Forwarding destination
VLANs specified by
MAC ports
(3) Notes on using the optional functionality
(a) Exclusive setting of VLANs
VLANs can be specified exclusively in the configuration commands below. A VLAN ID that
has already been specified by one command cannot be specified by the other commands.
Table 17-11 Configuration commands and VLAN types
Configuration commands
switchport mac dot1q vlan
switchport mac vlan
switchport mac native vlan
(b) Configuration command switchport mac dot1q vlan
This command is enabled when the
set.
(c) Using with the Layer 2 authentication functionality
If the
switchport mac dot1q vlan
frames and tagged frames on the relevant VLAN and Layer 2 authentication operate as
follows:
Untagged frames and Layer 2 authentication
Untagged frames and Layer 2 authentication can be used in the same way as
in 17.7.3 Linkage with the Layer 2 authentication functionality.
Tagged frames and Layer 2 authentication
If fixed VLAN mode of Web authentication or MAC-based authentication is set on the
interface port in which the relevant VLAN is accommodated, the tagged frames that
contain the VLAN IDs set in Table 17-11 Configuration commands and VLAN types
are subject to authentication in fixed VLAN mode.
To prevent authentication in fixed VLAN mode, use the
configuration command to register the target MAC address and VLAN ID
274
Handling of tagged frames
dot1q vlan
for
Tagged frames are sent.
VLAN types that can be set
Port VLAN or MAC VLAN
MAC VLAN
Port VLAN
#: Specify the VLAN ID that has been set by the
configuration command.
switchport mode mac-vlan
configuration command is set on a MAC port, untagged
configuration command is
mac-address-table static
#
.
switchport mac dot1q vlan
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