ZyXEL Communications AAM1212, User Manual

Page: 231 / 288

AAM1212 User’s Guide
230 Chapter 28 Switch Commands
This command adds or modifies an entry in the static VLAN table. Use the
switch vlan
show
command to display your configuration. An example of a configuration is shown next.
28.8.7.1 Modify a Static VLAN Table Example
The following is an example of how to modify a static VLAN table.
Figure 137 Modifying the Static VLAN Example
28.8.7.2 Forwarding Process Example
28.8.7.2.1 Tagged Frames
1 First the AAM checks the VLAN ID (VID) of tagged frames or assigns temporary VIDs
to untagged frames (see
Section 28.8.6 on page 229 ).
2 The AAM then checks the VID in a frame’s tag against the SVLAN table.
<F<T|U>|
= The <F> stands for a fixed registrar administration control flag
and registers a <port #> to the static VLAN table with <vid>.
For a fixed port, you also have to specify <T|U>, the tag control
flag.
<T> has the device add an IEEE 802.1Q tag to frames going out
through this port(s).
<U> has the device send frames out through this port(s) without
an IEEE 802.1Q tag.
You cannot change a port from the fixed state to another state if
the port’s PVID is set to this VLAN.
The VLAN must have at least one port set to the fixed status if
the VLAN is the CPU (management) VLAN.
|X|N>
= This is the registrar administration control flag.
<X> stands for forbidden and blocks a <port #> from joining
the static VLAN table with <vid>.
<N> stands for normal and confirms registration of the <port #>
to the static VLAN table with <vid>.
[name]
= A name to identify the SVLAN entry.
ras> switch vlan set 2000 1:FU
ras> switch vlan set 2001 2:FU