4 modify static vlan, 1 modify a static vlan table example, 2 forwarding process example – ZyXEL Communications ZyXEL Dimension ES-2108 User Manual
Page 243

ES-2108 Series User’s Guide
Chapter 34 IEEE 802.1Q Tagged VLAN Commands
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34.3.4 Modify Static VLAN
Use the following commands in the config-vlan mode to configure the static VLAN table.
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.
34.3.4.1 Modify a Static VLAN Table Example
The following example configures ports 1 to 5 as fixed and untagged ports in VLAN 2000.
34.3.4.2 Forwarding Process Example
34.3.4.2.1 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.
<vlan-id>
=
The VLAN ID [1 – 4094].
<name-str>
=
A name to identify the SVLAN entry.
<port-list>
=
This is the switch port list.
sysname(config)# vlan 2000
sysname(config-vlan)# fixed 1-5
sysname(config-vlan)# untagged 1-5