8 Port SNMP Managed Switch – User Manual
Page
27
Product Number 0-15910xx-x
© Tyco Electronics 2004
PL0357 Issue A
IEEE802.1Q VLANs
This is a more complex form of VLAN that reacts to the tagging field in the Ethernet packets.
This enables the switch to be used in larger networks where the VLAN modes are configured
directly on the switch. In large scale networks, the VLANs are sometimes centrally registered
and administered using GVRP (Generic VLAN Registration Protocol). In this case, use the
VLAN option
IEEE802.1Q With GVRP
, not this IEEE802.1Q option.
1. Select the Configure VLAN Type option and then use the <
Tab
> key to select the
<
Edit
> option and then enter <
CR
> to select the mode. The cursor will now be on the
VLAN Mode field. Use the <
Space
> key to toggle through the options to locate
IEEE802.1Q
. A new menu is displayed.
2. Use
the
<
Tab
> key to move into the port field of the menu. Enter the number of the
tagged VLAN ID directly into the
VLAN ID
field. If the device connected to this port does
not support tagged VLANs, the ingress traffic will have the specified default tag number
added to each packet. This allows legacy devices that do not support tagging to
interoperate with tagged VLAN systems.
3. Use the <
Tab
> key to move into the
Ingress Filter
field of the menu. Use the <
Space
>
key to toggle between Disable and Enable. In the default state, all traffic is forwarded
irrespective of the VLAN tag value. When this filter is
Enabled
, then only packets with
the correct VLAN tag will be forwarded, depending on the value of the
Acceptable
Frame Type Filter
.
4. Use the <
Tab
> key to move into the
Acceptable Frame Type
field of the menu. Use
the <
Space
> key to toggle between
All
and
Tag Only
. This is used in conjunction with
the
Ingress Filter
above to filter out non-tagged traffic.