4RF Aprisa XE User Manual page 97

Specifying the VLAN ID for the Ethernet Ports
Each Ethernet port can be configured with one of five VLAN IDs. You can configure each of the physical
ports, numbered 1 to 4 with a VLAN ID (numbered User1 to User4 and User+Mgmt).
These VLAN IDs are applied at the ingress port and only used internally across the link. The VLAN ID is
removed when traffic exits the switch at the egress port. Data entering the Ethernet switch on ports 1 to 4
or the internal management port can only exit on ports that are associated with the same VLAN ID as the
ingress port.
For example, the physical RJ-45 port 1 may be on VLAN 3 at the local end, but at the remote end, the
physical RJ-45 port 4 may be associated with VLAN 3. Traffic entering the local end on port 1 will exit the
remote end on port 4.
To allow the radio link to transport traffic using existing VLAN ID information, the radio adds an extra
VLAN ID over the top of an existing VLAN ID (double-tagging). This extra VLAN ID is added at the ingress
port and removed at the egress port. This adds 4 bytes to the packet and the maximum packet size
supported by the radio is 1526 bytes.
Note 1: Tagged flows can only have one port per VLAN ID on each terminal.
Note 2: The ethernet switch only supports packets up to 1522 bytes in size at the ingress port.
1. Select Link or Local or Remote > Interface > Ethernet Settings.
Note: Always configure the remote terminal before the local terminal
2. In the Quick Links box at the bottom of the page, select the port you want to configure:
3. The Ethernet Port Settings page appears for the port you selected:
4. From the Ethernet Group drop-down list, select the VLAN group to which you want this port to belong.
Important: To access radio management traffic, you need to allocate one of the VLANs to 'User and
Management'. It is strongly recommended that you indicate which port or group of ports is associated
to the management traffic first.
5. Click Apply.
6. Repeat steps 1-4 for the Ethernet switch in the other terminal in the link.
Aprisa XE User Manual
Configuring the Traffic Interfaces | 95