Information Technology Reference
In-Depth Information
Type of Service (ToS) Byte/Differentiated Service (DS) field, or the 802.1p bits in the 802.1Q Ethernet frame header.
To support tight QoS requirements, QoS tools and call admission control (CAC) mechanisms can be configured on Cisco network
devices and CUCM servers.
QoS mechanisms and tools include those used for the following:
Link efficiency
Classification
Marking
Congestion management
Congestion avoidance
Traffic shaping
Traffic policing
CAC mechanisms include the following:
CUCM locations CAC
RSVP
Gatekeeper-controlled CAC
These tools and mechanisms are described in the following sections.
 
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