User guide

115
Configure
• When you enable an interface, the Tag, Priority, and Promote checkboxes appear for
that interface.
Tag – Packets transmitted from this port through this VLAN must be tagged with the
VLAN VID. Packets received through this port destined for this VLAN must be tagged
with the VLAN VID by the source. The Tag option is only available on Global type ports.
Priority – Use any 802.1p priority bits in the VLAN header to prioritize packets within
the Gateway’s internal queues, according to DiffServ priority mapping rules. See “Dif-
ferentiated Services” on page 94 for more information.
Promote – Write any 802.1p priority bits into the IP-TOS header bit field for received IP
packets on this port destined for this VLAN. Write any IP-TOS priority bits into the
802.1p priority bit field for tagged IP packets transmitted from this port for this VLAN.
All mappings between Ethernet 802.1p and IP-TOS are made according to a pre-defined
QoS mapping policy. See “Differentiated Services” on page 94 for more information.
☛ Note:
To make a set of VLANs non-routable, the uplink port must be included in at
least one VLAN. It must then be excluded from any VLANs that are intended to
be non-routable.
• Click the Submit button.
• When you are finished, click the Alert icon in the upper right-hand corner of the screen,
and in the resulting screen, click the Save link.