Netgear GS716Tv3 – ProSAFE 16-Port Gigabit Managed Switch 管理者ガイド

Use the CoS Interface Configuration screen to configure the trust mode for one or more 
interfaces and to apply an interface shaping rate to all interfaces or to a specific interface.

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Select QoS 

>

 CoS > Advanced 

>

 CoS Interface Configuration.

Select the interfaces to configure. 

For information about how to select and configure one or more ports and LAGs, see 

on page 28.

From the Interface Trust Mode drop down list, select the trust mode for ingress traffic on the 
selected interfaces.

Untrusted. Do not trust any CoS packet marking at ingress.

802.1p. The eight priority tags that are specified in IEEE 802.1p are p0 to p7. The 
QoS setting lets you map each of the eight priority levels to one of seven internal 
hardware priority queues.

DSCP. The six most significant bits of the DiffServ field are called the Differentiated 
Services Code Point (DSCP) bits.

In the Interface Shaping Rate field, specify the maximum bandwidth allowed. 

This is typically used to shape the outbound transmission rate in increments of 64 kbps in 
this range of 16–16384. This value is controlled independently of any per-queue 
maximum bandwidth configuration. It is effectively a second-level shaping mechanism. 
The default value is 0. The value 0 means the maximum is unlimited.

The expected shaping at egress interface is calculated as:

frameSize*shaping/(frameSize+IFG), where IFG (Inter frame gap) is 20 bytes, frameSize 
is configured frame size of the traffic and shaping is configured traffic shaping in the 
Interface Shaping Rate field.

For example, when the frame size is 64 bytes and the interface shaping rate is 64, the 
expected shaping will be approximately 48kbps.

Setting the value to 0 resets the configured traffic-shape rate.

Click the Apply button.