Vivotek FD8133V User Manual page 41

Q o S ( Q u ality of Service)
Q u ality of Service ref e rs to a resource reservation control mechanism
to dif f e rent services ( v oice, data, video, etc) on the network Q u ality of service guarantees are important
if the network capacity is insufficient, especially for real-time streaming multimedia applications.
can be defined as, for instance, a maintained level of bit rate, low latency, no packet dropping, etc.
The following are the main benefits of a QoS-aware network:
■
The ability to prioritize traffic and guarantee a certain level of performance to the data flow.
■
To utilize QoS in a network environment, the following requirements must be met:
■
■
for each application (0~7).
If you assign Video the highest level, the switch will handle video packets first.
NOTE
► The VLAN Switch (802.1p) is required. The web browsing may fail if the CoS setting is incorrect.
► Class of Service technologies do not guarantee a level of service in terms of bandwidth and delivery
time; they offer a "best-effort." Users can think of CoS as "coarsely-grained" traffic control and QoS as
"finely-grained" traffic control.
► Though CoS is simple to manage, it lacks scalability and does not offer end-to-end guarantees since it
Advanced Mode
, which guarantees a certain q u ality
VLAN ID of your switch (0~4095) and choose the priority
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User's Manual - 41