Multimedia Qos - Avaya 100 Series Application And Qualification Manual

4.2 Multimedia QoS

What:
Comprehensive QoS for multimedia applications including low latency and line rate performance enables
advanced QoS for services like voice and video.
Who:
Customers looking to differentiate traffic and applications, specifically voice and multimedia.
Why:
SR hierarchical QoS enables Enterprises to manage traffic and applications across the WAN with
significantly more control than typical edge routers.
When:
Available today
Where:
Worldwide. Hierarchical QoS is available on all ports with the exception of no CBQ on Ethernet
interfaces.
How:
The secure router provides an effective mechanism for sharing and prioritizing applications over WAN
interfaces by implementing Random Early Detection (RED) to address congestion and Class Based
Queuing (CBQ) to address traffic policing.
SR 100X and SR 3120 both provide hierarchical classification with an unlimited number of classes. A
class is defined by a class name, an associated parent class, and a committed and burst bandwidth. The
committed bandwidth specifies the guaranteed bandwidth for that class while the burst bandwidth
specifies the amount of bandwidth that can be borrowed when available. Packets are identified as
belonging to a specific class using the criteria below:

Application level
Application ports (TCP or UDP)

Network level
Source or destination IP addresses, address ranges, or subnets

Ethernet MAC level
VLAN identifiers
October_2010
Secure Router 100x and 3120 Technical Solution Guide
Application and Qualification Guide
avaya.com
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