Motorola 7.7.4 manual 114

•When you enable an interface, the Tag, Priority, and Promote checkboxes and an 802.1p Priority Bit pull-down menu 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.

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. The pre-defined mapping can now be set in the CLI. See “Queue Configuration” on page 231.

802.1p Priority Bit – If you set this field to a value greater than 0, all packets received on this port with unmarked priority bits (pbits) will be re-marked to this priority. If the port 802.1p PBit is greater than 0, the VLAN 802.1p PBit setting is ignored.

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