User Manual

Configuring Quality of Service
227
S3300 Smart Managed Pro Switch
Interface Queue Configuration
Use the Interface Queue Configuration screen to define what a particular queue does by
configuring switch egress queues. User-configurable parameters control the amount of
bandwidth used by the queue, the queue depth during times of congestion, and the
scheduling of packet transmission from the set of all queues on a port. Each port has its own
CoS queue-related configuration.
The configuration process is simplified by allowing each CoS queue parameter to be
configured globally or per-port. A global configuration change is automatically applied to all
ports in the system.
 To configure CoS queue settings for an interface:
1. Select QoS > CoS > Advanced > Interface Queue Configuration.
2. Select the interfaces to configure.
For information about how to select and configure one or more ports and LAGs, see
Configuring Interface Settings on page 32.
3. Configure any of the following settings:
• Queue ID. Select the queue to be configured.
• Minimum Bandwidth. Enter a percentage of the maximum negotiated bandwidth for
the selected queue on the interface. Specify a percentage from 0–100, in increments
of 1.
• Scheduler Type. Select the type of queue processing. Defining on a per-queue basis
allows you to create the desired service characteristics for different types of traffic.
- Weighted. Weighted round robin associates a weight to each queue. This is the
default.
- Strict. Services traffic with the highest priority on a queue first.
• Queue Management Type. The type of packet management used for all packets,
which is Taildrop. All packets on a queue are safe until congestion occurs. At this
point, any additional packets queued are dropped.
4. Click the Apply button.