Chapter 30 Configuring Qos; In This Chapter - Alcatel-Lucent OmniSwitch 6800 Series Network Configuration Manual

Alcatel-Lucent's QoS software provides a way to manipulate flows coming through the switch based on
user-configured policies. The flow manipulation (generally referred to as Quality of Service or QoS) may
be as simple as allowing/denying traffic, or as complicated as remapping 802.1p bits from a Layer 2
network to ToS values in a Layer 3 network.
While policies may be used in many different types of network scenarios, there are several typical types
discussed in this chapter:
•
Basic QoS—includes traffic prioritization and bandwidth shaping.
•
ICMP policies—includes filtering, prioritizing, and/or rate limiting ICMP traffic for security.
•
802.1p/ToS/DSCP—includes policies for marking and mapping.
•
Policy Based Routing (PBR)—includes policies for redirecting routed traffic.
•
Policy Based Mirroring—includes mirror-to-port (MTP) policies for mirroring ingress, egress, or both
ingress and egress traffic.
•
Access Control Lists (ACLs)—ACLs are a specific type of QoS policy used for Layer 2 and
Layer 3/4 filtering. Since filtering is used in many different network situations, ACLs are described in a
separate chapter (see

In This Chapter

This chapter describes QoS in general and how policies are used on the switch. It provides information
about configuring QoS through the Command Line Interface (CLI). CLI commands are used in the config-
uration examples; for more details about the syntax of commands, see the OmniSwitch CLI Reference
Guide.
Configuration procedures described in this chapter include:
•
Setting up global QoS parameters (see
•
Configuring QoS Ports and Queueing Schemes
•
Setting up policy components, such as policy conditions and actions (see
•
Configuring specific types of policies (see
Note. Policies may also be configured through the PolicyView NMS application and stored on an attached
LDAP server. LDAP policies are downloaded to the switch and managed via the Policy Manager feature
in the switch. For more information about managing LDAP policies, see
Servers."
OmniSwitch 6800/6850/9000 Network Configuration Guide
30 Configuring QoS
Chapter 31, "Configuring
page 30-14)
page
ACLs").
page 30-24
30-57)
Chapter 29, "Managing Policy
March 2008
page 30-31)
page 30-1