NETGEAR 7000 Series Managed Switch Administration Guide

IP Precedence

IP DiffServ Code Point (DSCP)

The system can assign service level based upon the 802.1p priority field of the L2 header. You configure this by mapping the 802.1p priorities to one of three traffic class queues. These queues are:

Queue 2 - Minimum of 50% of available bandwidth

Queue 1 - Minimum of 33% of available bandwidth

Queue 0 - Lowest priority, minimum of 17% of available bandwidth

For untagged traffic, you can specify default 802.1p priority on a per-port basis.

Untrusted Ports

No incoming packet priority designation is trusted, therefore the port default priority value is used.

All ingress packets from Untrusted ports, where the packet is classified by an ACL or a DiffServ policy, are directed to specific CoS queues on the appropriate egress port. That specific CoS queue is determined by either the default priority of the port or a DiffServ or ACL assign queue attribute.

Used when trusted port mapping is unable to be honored - i.e. when a non-IP DSCP packet arrives at a port configured to trust IP DSCP.

CoS Queue Configuration

CoS queue configuration involves port egress queue configuration and drop precedence configuration (per queue). The design of these on a per queue, per drop precedence basis allows the user to create the desired service characteristics for different types of traffic.

Port Egress Queue Configuration

Scheduler Type

Strict vs. Weighted

Minimum guaranteed bandwidth

Maximum allowed bandwidth

Per queue shaping

Queue management type

8-2

Class of Service (CoS) Queuing

v1.1, May 2006

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NETGEAR 7000 manual CoS Queue Configuration, Untrusted Ports, Port Egress Queue Configuration

7000 specifications

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