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ES-2108 Series User’s Guide
Chapter 29 IEEE 802.1Q Tagged VLAN Commands 193
Syntax:
vlan <vlan-id>
fixed <port-list>
forbidden <port-list>
name <name-str>
normal <port-list>
untagged <port-list>
no fixed <port-list>
no forbidden <port-list>
no untagged <port-list>
where
•Enter
fixed to register the <port-list> to the static VLAN table with <vlan-id>.
•Enter
normal to confirm registration of the <port-list> to the static VLAN table with
<vlan-id>.
•Enter
forbidden to block a <port-list> from joining the static VLAN table with
<vlan-id>.
•Enter
no fixed or no forbidden to change <port-list> to normal status.
•Enter
untagged to send outgoing frames without a tag.
•Enter
no untagged to tag outgoing frames.
29.5.4.1 Modify a Static VLAN Table Example
The following example configures ports 1 to 5 as fixed and untagged ports in VLAN 2000.
Figure 138 Modifying Static VLAN Example
29.5.4.2 Forwarding Process Example
Tagged Frames
1 First the switch checks the VLAN ID (VID) of tagged frames or assigns temporary VIDs
to untagged frames.
2 The switch then checks the VID in a frame’s tag against the SVLAN table.
3 The switch notes what the SVLAN table says (that is, the SVLAN tells the switch
whether or not to forward a frame and if the forwarded frames should have tags).
<vlan-id> =
The VLAN ID [1 – 4094].
<name-str> =
A name to identify the SVLAN entry.
<port-list> =
This is the switch port list.
ras (config)# vlan 2000
ras (config-vlan)# fixed 1-5
ras (config-vlan)# untagged 1-5