Modify A Static Vlan Table Example; Forwarding Process Example; Figure 135 Modifying The Static Vlan Example - ZyXEL Communications IES-1248-51 User Manual

IES-1248-51 User's Guide
<F<T|U>|
|X|N>
[name]
This command adds or modifies an entry in the static VLAN table. Use the
command to display your configuration. An example of a configuration is shown next.
show

42.4.4.1 Modify a Static VLAN Table Example

The following is an example of how to modify a static VLAN table.

Figure 135 Modifying the Static VLAN Example

ras> switch vlan set 2000 1:FU
ras> switch vlan set 2001 2:FU

42.4.4.2 Forwarding Process Example

Tagged Frames
1 First the IES-1248-51 checks the VLAN ID (VID) of tagged frames or assigns temporary
VIDs to untagged frames (see
2 The IES-1248-51 checks the frame's source MAC address against the MAC filter.
3 The IES-1248-51 then checks the VID in a frame's tag against the SVLAN table.
4 The IES-1248-51 notes what the SVLAN table says (that is, the SVLAN tells the IES-
1248-51 whether or not to forward a frame and if the forwarded frames should have a
tag).
5 Frames might be dropped if they are sent to a CPE (customer premises equipment) DSL
device that does not accept tagged frames.
Untagged Frames
266
The <F> stands for a
=
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
an IEEE 802.1Q tag.
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>.
A name to identify the SVLAN entry.
=
Section 42.4.2 on page
Chapter 42 IEEE 802.1Q Tagged VLAN Commands
registrar administration control flag
fixed
through this port(s)
264).
without
switch vlan