Extreme Networks Summit1 manual Creating and Configuring a QOS Profile, Assigning a QOS Profile

QUALITY OF SERVICE (QOS)

PRIORITIZATION

Prioritization is used when there is bandwidth contention for transmission on a port. The four levels of priority are used as a mechanism for resolving the contention between traffic groups. If traffic groups have the same priority, a “round-robin” algorithm is applied.

CREATING AND CONFIGURING A QOS PROFILE

Up to 28 custom QoS profiles can be created on the Summit in egress mode. To create a QoS profile, use the following command:

create qosprofile <name>

A new QoS profile is created with the following default values:

•Minimum bandwidth — 0%

•Maximum bandwidth — 100%

•Priority — low

Each of the default values is configurable by using the following command in egress mode:

config qosprofile <qosname> {minbw <percent>} {maxbw <percent>}

{priority <level>}

In ingress mode, use the same command syntax to modify the bandwidth parameters of the default QoS profiles, however the priority level specified is ignored.

ASSIGNING A QOS PROFILE

Once you have established one or more traffic classifications and configured one or more QoS profiles, you can match them together using one of the following commands:

config vlan <name> qosprofile <qosname>

or

config port <portlist> qosprofile <qosname>

You can assign a QoS profile to a MAC entry by using the following command:

create fdbentry <mac_address> vlan <name> [blackhole <portlist>

dynamic] {qosprofile <qosname>}

8-6 SUMMIT SWITCH INSTALLATION AND USER GUIDE