4Then the switch applies the port filter to finish the forwarding decision. This means that frames may be dropped even if the SVLAN says to forward them. Frames might also be dropped if they are sent to a CPE (customer premises equipment) DSL device that does not accept tagged frames.
Untagged Frames
1An untagged frame comes in from the LAN.
2The switch checks the PVID table and assigns a temporary VID of 1.
3The switch ignores the port from which the frame came, because the switch does not send a frame to the port from which it came. The switch also does not forward frames to “forbidden” ports.
4If after looking at the SVLAN, the switch does not have any ports to which it will send the frame, it won’t check the port filter.
29.5.5Delete VLAN ID
Syntax:
no vlan
where
This command deletes the specified VLAN ID entry from the static VLAN table. The following example deletes entry 2 in the static VLAN table.
Figure 138 no vlan Command Example
ras (config)# no vlan 2
29.6 Enable VLAN
Syntax:
vlan
This command enables the specified VLAN ID in the SVLAN (Static VLAN) table.
188 | Chapter 29 IEEE 802.1Q Tagged VLAN Commands |