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QoS Policy Overview Configuring QoS
page 25-30 OmniSwitch AOS Release 7 Network Configuration Guide June 2013
Policy Lists
A QoS policy list provides a method for grouping multiple policy rules together and applying the group of
rules to specific types of traffic.The type of traffic to which a policy list is applied is determined by the
type of list that is configured. There are two types of policy lists:
•
Default —All rules are associated with a default policy list when the rules are created. This list is not
configurable, but it is possible to direct QoS to not assign a rule to this list.
•
User Network Profile (UNP) —This type of policy list is associated with the Universal Network
Profile (UNP) that is supported on the OmniSwitch 6900. The rules in this list are applied to device
traffic that was classified into the profile.
For more information, see “Creating Policy Lists” on page 25-50 .
Interaction With Other Features
QoS policies are an integral part of configuring other switch features, such as Link Aggregation. In
addition, QoS settings can affect other features in the switch; or QoS settings can require that other switch
features be configured in a particular way.
A summary of related features is given here:
•
Dynamic Link Aggregates —Policies can be used to prioritize dynamic link aggregation groups. For
details, see Chapter 8, “Configuring Dynamic Link Aggregation.”
•
802.1Q —Tagged ports are always untrusted by default. For information about configuring ports with
802.1Q, see Chapter 4, “Configuring VLANs.”
•
LDAP Policy Management —Policies can also be configured through the PolicyView application and
stored on an attached LDAP server. LDAP policies can only be modified through PolicyView. For
information about setting up a policy server and managing LDAP policies, see
Chapter 26, “Managing
Policy Servers.”
•
VLAN Stacking Ethernet Service —VLAN Stacking ports are always trusted and default
classification is set to 802.1p. QoS policy conditions to match the inner VLAN tag and inner 802.1p tag
are available for classifying customer information contained in VLAN Stacking frames. For informa-
tion about VLAN Stacking see
Chapter 33, “Configuring VLAN Stacking.”
•
User Network Profiles —The Universal Network Profile (UNP) feature provides the ability to assign a
list of QoS policy rules to a profile. The rules contained in the list are applied to any device that is
assigned to the UNP. For more information about policy lists, see
“Policy Lists” on page 25-30 and
Chapter 27, “Configuring Universal Network Profiles.”
Valid Policies
The switch does not allow you to create invalid condition/action combinations; if you enter an invalid
combination, an error message is displayed. A list of valid condition and actions is given in
“Policy Condi-
tions” on page 25-31 and “Policy Actions” on page 25-32 .
It is possible to configure a valid QoS rule that is active on the switch, however the switch is not able to
enforce the rule because some other switch function (for example, routing) is disabled.