Netgear M7100-24X (XSM7224) - ProSAFE 24 Ports 10G Fully Managed L2 Switch Guia Do Administrador
CoS Queuing
273
Managed Switches
Untrusted Ports
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No incoming packet priority designation is trusted; therefore, the default priority value for
the port is used.
the port is used.
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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
specific CoS queue is determined by either the default priority of the port or a DiffServ or
ACL-assigned queue attribute.
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Used when trusted port mapping is unable to be honored - for instance, when a non-IP
DSCP packet arrives at a port configured to trust IP DSCP.
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 you to create the service characteristics that you want for different types of traffic.
configuration (per queue). The design of these on a per-queue, per-drop precedence basis
allows you to create the service characteristics that you want for different types of traffic.
Port egress queue configuration:
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Scheduler type, strict vs. weighted
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Minimum guaranteed bandwidth
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Maximum allowed bandwidth per-queue shaping
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Queue management type, tail drop vs. WRED
Drop precedence configuration (per queue):
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WRED parameters
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Minimum threshold
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Maximum threshold
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Drop probability
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Scale factor
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Tail drop parameters, threshold
Per-interface basis:
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Queue management type, rail Drop vs. WRED
Only if per-queue configuration is not supported
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WRED decay exponent
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Traffic shaping for an entire interface