Configuring QoS Interaction With Other Features
OmniSwitch 6800/6850/9000 Network Configuration Guide March 2008 page 30-5
Valid Policies
The switch does not allow you to create invalid condition/action combinations; if you enter an invalid
combination, an error message will display.
A list of valid condition and condition/action combinations is given in “Condition Combinations” on
page 30-6 and “Action Combinations” on page 30-8.
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. See the condition
and condition/action combinations tables for more information about valid combinations (“Condition
Combinations” on page 30-6 and “Action Combinations” on page 30-8).
Interaction With Other Features
QoS policies may be an integral part of configuring other switch features, such as Link Aggregation. In
addition, QoS settings may affect other features in the switch; or QoS settings may require that other
switch features be configured in a particular way.
A summary of related features is given here:
• Dynamic Link Aggregates—Policies may be used to prioritize dynamic link aggregation groups. For
details, see Chapter 17, “Configuring Dynamic Link Aggregation.”
• 802.1Q—Tagged ports are always trusted, regardless of QoS settings. For information about configur-
ing ports with 802.1Q, see Chapter 15, “Configuring 802.1Q.”
• Mobile Ports—Mobile ports are always trusted, regardless of QoS settings. For information about
setting up mobile ports, see Chapter 10, “Assigning Ports to VLANs.”
• LDAP Policy Management—Policies may also be configured through the PolicyView application and
stored on an attached LDAP server. LDAP policies may only be modified through PolicyView. For
information about setting up a policy server and managing LDAP policies, see Chapter 29, “Managing
Policy Servers.”
• VLAN Stacking 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.
• Quarantine Manager and Remediation (QMR)—Configuring QMR and QoS inner VLAN or inner
802.1p policies is mutually exclusive. QMR overlays the inner VLAN tag, thus creating a conflict with
related QoS policies. This is also true with QMR and VLAN Stacking services.
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