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CP6930-1 User Guide
35
4.1.5
FASTPATH Quality of Service
DiffServ
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RFC 2474 — Definition of the differentiated services field (DS Field) in the IPv4 and IPv6 headers
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RFC 2475 — An architecture for differentiated services
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RFC 2597 — Assured forwarding PHB group
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RFC 2697 — Single-rate policing
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RFC 3246 — An expedited forwarding PHB (Per-Hop Behavior)
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RFC 3260 — New terminology and clarifications for DiffServ
Access Control Lists (ACL)
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Permit/deny actions for inbound or outbound IP traffic classification based on:
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Type of service (ToS) or differentiated services (DS) DSCP field
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Source IP address
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Destination IP address
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TCP/UDP source port
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TCP/UDP destination port
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IP protocol number
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IPv6 flow label
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Permit/deny actions for inbound or outbound layer-2 traffic classification based on:
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Source MAC address
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Destination MAC address
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EtherType
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VLAN identifier value or range (outer and/or inner VLAN tag)
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802.1p user priority (outer and/or inner VLAN tag)
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Optional rule attributes:
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Assign matching traffic flow to a specific queue
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Redirect or mirror (flow-based mirroring) matching traffic flow to a specific port
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Generate trap log entries containing rule hit counts
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RFC 1858 — Security Considerations for IP Fragment Filtering
Class of Service (CoS)
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Direct user configuration of the following:
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IP DSCP to traffic class mapping
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IP precedence to traffic class mapping
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Interface trust mode: 802.1p, IP Precedence, IP DSCP, or untrusted
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Interface traffic shaping rate
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Minimum and maximum bandwidth per queue
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Strict priority versus weighted (WRR/WDRR/WFQ) scheduling per queue
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Tail drop versus Weighted Random Early Detection (WRED) queue depth management
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Auto VoIP
