Draytek g2080 User Manual
VigorSwitch G2080 User’s Guide
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Function name:
VLAN Tag Priority
Function description:
In vlan tag, there are 3 bits belonging to priority. According to these 3 bits, we could
arrange 8 traffics –0 0 0, 0 0 1, 0 1 0, 0 1 1, 1 0 0, 1 0 1, 1 1 0, 1 1 1. We can set High
priority or Low priority for each traffic class. For instance, if we let VLAN-tagged priority
0 0 0 be high priority and VLAN-tagged priority 0 0 1 be Low Priority, and then make port
1, 2, 3 be in the vlan 2. We sent the packets that have the value 0 0 0 in vlan-tagged field
and VID equals 2 from the port 2 and the packets that have the value 0 0 1 in vlan-tagged
field and VID equals 2 from the port 3 into the switch. We let the two kinds of packets be
transmitted for port 1 until the port results in congestion. The result is that the packets will
be dropped partially from the port 3 because the packets that belong to Low Priority. For
the use of VLAN Tag Priority function, please press <Configure> button at the right
section for setting in advance.
arrange 8 traffics –0 0 0, 0 0 1, 0 1 0, 0 1 1, 1 0 0, 1 0 1, 1 1 0, 1 1 1. We can set High
priority or Low priority for each traffic class. For instance, if we let VLAN-tagged priority
0 0 0 be high priority and VLAN-tagged priority 0 0 1 be Low Priority, and then make port
1, 2, 3 be in the vlan 2. We sent the packets that have the value 0 0 0 in vlan-tagged field
and VID equals 2 from the port 2 and the packets that have the value 0 0 1 in vlan-tagged
field and VID equals 2 from the port 3 into the switch. We let the two kinds of packets be
transmitted for port 1 until the port results in congestion. The result is that the packets will
be dropped partially from the port 3 because the packets that belong to Low Priority. For
the use of VLAN Tag Priority function, please press <Configure> button at the right
section for setting in advance.
Parameter description:
VLAN Tag Configuration: Used for setting up the QoS belongs to VLAN operation.
Port:
User can set up the port (1~8) respectively to let VLAN Tag
QoS function work on them. If you would like to set up all
ports at a time, user is also allowed to choose “All” in the
selection list to simplify the procedure of configuration.
QoS function work on them. If you would like to set up all
ports at a time, user is also allowed to choose “All” in the
selection list to simplify the procedure of configuration.
Bit 0, Bit 1, Bit 2:
According to the arrangement of VLAN-tagged priority, it
can form 8 kinds of traffics, including 0 0 0, 0 0 1, 0 1 0, 0 1
1, 1 0 0, 1 0 1, 1 1 0
and 1 1 1.
can form 8 kinds of traffics, including 0 0 0, 0 0 1, 0 1 0, 0 1
1, 1 0 0, 1 0 1, 1 1 0
and 1 1 1.
Class:
8 kinds of traffic as mentioned above, user can set up High
Priority or Low Priority for each port respectively.
Priority or Low Priority for each port respectively.