NETGEAR GS748Tv4 Software Administration Manual page 128

To display the CoS Interface Configuration page, click the QoS > CoS tab, and then click the
Advanced > CoS Interface Configuration link.
To configure CoS settings for an interface:
1. To configure CoS settings for a physical port, click PORTS.
2. To configure CoS settings for a Link Aggregation Group (LAG), click LAGS.
3. To configure CoS settings for both physical ports and LAGs, click ALL.
4. Select the check box next to the port or LAG to configure. You can select multiple ports and
LAGs to apply the same setting to the selected interfaces.
5. From the Interface Trust Mode field, specify whether or not the selected interface(s) trust a
particular packet marking when the packet enters the port.
• 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 eight internal
hardware priority queues.
• DSCP. The six most significant bits of the DiffServ field are called the Differentiated
Services Code Point (DSCP) bits.
6. From the Interface Shaping Rate field, specifiy 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 maximum is unlimited.
128 | Chapter 4: Configuring Quality of Service
GS748T Smart Switch Software Administration Manual