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4.1.4 QoS

DiffServ
• RFC 2474—Definition of the differentiated services field (DS Field) in the IPv4 and IPv6 headers
• RFC 2475—An architecture for differentiated services
• RFC 2597—Assured forwarding PHB group
• RFC 3246—An expedited forwarding PHB (Per-Hop Behavior)
• RFC 3260—New terminology and clarifications for DiffServ
Access Control Lists (ACL)
• Permit/deny actions for inbound or outbound IP traffic classification based on:
• Type of service (ToS) or differentiated services (DS) DSCP field
• Source IP address
• Destination IP address
• TCP/UDP source port
• TCP/UDP destination port
• IPv6 flow label
• IP protocol number
• Permit/deny actions for inbound or outbound Layer 2 traffic classification based on:
• Source MAC address
• Destination MAC address
• EtherType
• VLAN identifier value or range (outer and/or inner VLAN tag)
• 802.1p user priority (outer and/or inner VLAN tag)
• Optional rule attributes:
• Assign matching traffic flow to a specific queue
• Redirect or mirror (flow-based mirroring) matching traffic flow to a specific port
• Generate trap log entries containing rule hit counts
Class of Service (CoS)
• Direct user configuration of the following:
• IP DSCP to traffic class mapping
• IP precedence to traffic class mapping
• Interface trust mode: 802.1p, IP Precedence, IP DSCP, or untrusted
• Interface traffic shaping rate
• Minimum and maximum bandwidth per queue
• Strict priority versus weighted (WRR/WDRR/WFQ) scheduling per queue
• Tail drop versus Weighted Random Early Detection (WRED) queue depth management
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Software Description
CP6930 User Guide
www.kontron.com

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