Configuring Network
91
To configure intelligent firewall traversal via web user interface:
1.
Click on
Network
->
NAT/Firewall
.
2.
Select the desired value from the pull-down list of
Audio&Video Intelligent Traversal
.
3.
Select the desired value from the pull-down list of
Data Intelligent Traversal
.
4.
Click
Confirm
to accept the change.
Quality of Service
Quality of Service (QoS) is the ability to provide different priorities for different packets in the
network. This allows the transport of traffic with special requirements. QoS guarantees are
important for applications that require a fixed bit rate and are delay sensitive when the network
capacity is insufficient. There are four major QoS factors to be considered when configuring a
modern QoS implementation: bandwidth, delay, jitter and loss.
QoS provides a better network service through the following features:
Supporting dedicated bandwidth
Improving loss characteristics
Avoiding and managing network congestion
Shaping network traffic
Setting traffic priorities across the network
The Best-Effort service is the default QoS model in the IP networks. It provides no guarantees for
data delivery, which means delay, jitter, packet loss and bandwidth allocation are unpredictable.
Differentiated Services (DiffServ or DS) is the most widely used QoS model. It provides a simple
Summary of Contents for VC120
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