Transcription of QoS Classification and Marking
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QoS Classification and Marking
QoS Classification and Marking Aaron Balchunas * * * All original material copyright 2010 by Aaron Balchunas unless otherwise noted. All other material copyright of their respective owners. This material may be copied and used freely, but may not be altered or sold without the expressed written consent of the owner of the above copyright. Updated material may be found at 1 - QoS Classification and Marking - Classifying and Marking Traffic Conceptually, DiffServ QoS involves three steps: Traffic must be identified and then classified into groups. Traffic must be marked on trust boundaries. Policies must be created to describe the per-hop behavior for classified traffic. DiffServ QoS relies on the Classification of traffic, to provide differentiated levels of service on a per-hop basis. Traffic can be classified based on a wide variety of criteria called traffic descriptors, which include: Type of application Source or destination IP address Incoming interface Class of Service (CoS) value in an Ethernet header Type of Service (ToS) value in an IP header (IP Precedence or DSCP) MPLS EXP value in a MPLS header Access-lists can be used to identify traffic for Classification , based on address or port.
QoS Classification and Marking ... The QoS , ...
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