Motorola 3347 User Manual
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When you enable an inter face, the
Tag, Priority, and Promote checkboxes and an
802.1p Priority Bit pull-down menu appear for that inter face.
Tag – Packets transmitted from this port through this VLAN must be tagged with the
VLAN VID. Packets received through this por t 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 DiffSer v priority mapping rules.
Promote – Write any 802.1p priority bits into the IP-TOS header bit field for received IP
packets on this por t destined for this VLAN. Write any IP-TOS priority bits into the
802.1p priority bit field for tagged IP packets transmitted from this por t for this VLAN.
All mappings between Ethernet 802.1p and IP-TOS are made according to a pre-defined
QoS mapping policy. The pre-defined mapping can now be set in the CLI. See
802.1p Priority Bit – If you set this field to a value greater than 0, all packets received
on this por t with unmarked priority bits (pbits) will be re-marked to this priority. If the
por t 802.1p PBit is greater than 0, the VLAN 802.1p PBit setting is ignored.