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Enhancements
Release K.12.05 Enhancements
Figure 2. Active Configuration for VLAN 22 Temporarily Changes for the 802.1X Session
However, as shown in Figure 1, because VLAN 33 is configured as untagged on port A2 and because
a port can be untagged on only one VLAN, port A2 loses access to VLAN 33 for the duration of the
802.1X session on VLAN 22.
You can verify the temporary loss of access to VLAN 33 by entering the show vlan 33 command as
shown in Figure 3.
Figure 3. Active Configuration for VLAN 33 Temporarily Drops Port 22 for the 802.1X Session
In the show command output, port A2 is temporarily
configured as untagged on VLAN 22 for an 802.1X session.
This temporary configuration change is necessary to
accommodate an 802.1X client’s access, authenticated by
a RADIUS server, in which the server included an
instruction to assign the client session to VLAN 22.
Note: In the current VLAN configuration ( Figure 1), port
A2 is only listed as a member of VLAN 22 in show vlan 22
output when an 802.1X session with an authenticated
client is active. Otherwise, port A2 is not listed.
Although port A2 is
configured as Untagged on
VLAN 33 (Figure Figure 1),
port A2 is not listed in show
vlan 33 output during the
802.1X session that uses
VLAN 22 in Untagged mode.
However, when the 802.1X
session on VLAN 22 ends,
the active configuration
restores port A2 as an
untagged member of
VLAN 33.
