3-4
Cisco AVVID Network Infrastructure Enterprise Quality of Service Design
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Chapter 3 QoS in an AVVID-Enabled Campus Network
QoS Toolset
illustrates the placement of separate TX buffers. As the transmit queues begin to fill, traffic
is dropped from the non-mission-critical buffer first. This protects voice, video, and mission-critical data
from packet loss.
Figure 3-4
Using Separate TX Buffers
QoS Toolset
The challenges of loss, delay, and delay variation can be addressed through the application of various
QoS tools.
This section provides information about the use of QoS tools in a campus environment. For general
information about the QoS Toolset, see the
Classification
Within a campus AVVID network, you should classify voice and video bearer traffic, signaling traffic,
and mission-critical data traffic.
For general recommendations for classification, see
Core
Distribution
Access
74694
Si
Si
Si
IP
TX
TX
TX
TX
TX
TX
TX
TX
TX
Areas where QoS
maybe a concern