Vigitron MaxiiNet Vi30018, Operational Manual

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Page | 69
The numbers indicate the how packets are treated in sequence at each
port so if the ratio is 3 Low/ 5 High the sequence will be 5 packets will be
stored in high followed by 3 packets stored in low, etc.
E
x
a
m
p
l
e
:
I
f
H
i
gh, LLow queue are set to 5, 3, then the traffic at the specific port will go
out in the following sequence. 5 packets stored in High queue, 3 packets
stored in Low queue, 5 packets stored in High queue, 3 packets stored in
Low queue ……
14.2 Class of
Service
Configuration
There are 4 types of CoS for this setting; ie, TCP/UDP port number, IP
TOS/DS, 802.1p priority tag and physical port. The administrator can
select more than one item for each port.
Please note that if more than one type of CoS is selected, the switch will
arrange the packet to the assigned queue according the following priority:
TCP/UDP port number the first,
IP ToS/DS the second,
802.1p priority tag the third and physical port the last. This means
TCP/UDP port number will override other CoS setting.
The rule is: TCP/UDP > TOS/DS > 802.1p > Physical