Configuring QoS Policy Applications
OmniSwitch 6800/6850/9000 Network Configuration Guide March 2008 page 30-57
Policy Applications
Policies are used to classify incoming flows and treat the relevant outgoing flows. There are many ways to
classify the traffic and many ways to apply QoS parameters to the traffic.
Classifying traffic may be as simple as identifying a Layer 2 or Layer 3 address of an incoming flow.
Treating the traffic might involve prioritizing the traffic or rewriting an IP address. How the traffic is
treated (the action in the policy rule) typically defines the type of policy:
This section describes how to configure basic QoS policies and 802.1p/ToS/DSCP marking and mapping
policies. Policies used for Layer 2 and Layer 3/4 filters, are commonly referred to as Access Control Lists
(ACLs). Filtering is discussed in Chapter 31, “Configuring ACLs.”
Policies may also be used for prioritizing traffic in dynamic link aggregation groups. For more informa-
tion about dynamic link aggregates, see Chapter 17, “Configuring Dynamic Link Aggregation.”
Type of Policy Description Action Parameters Used
Basic QoS policies Prioritizes particular flows, and/
or shapes the bandwidth for the
flow
maximum bandwidth
priority
Redirection policies Redirects flows to a specific port
or link aggregate ID.
redirect port
redirect linkagg
Policy Based Mirroring Mirrors ingress and egress pack-
ets to a specific port.
ingress mirror
egress mirror
ingress egress mirror
ICMP policies Filters, prioritizes, and/or rate
limits ICMP traffic
disposition
priority
maximum bandwidth
802.1p, ToS, and DSCP tagging or
mapping policies
Sets or resets the egress 802.1p,
ToS, or DSCP values
802.1p
tos
dscp
map group
Policy Based Routing (PBR) Redirects routed traffic. Note
that PBR is not supported on the
OmniSwitch 6800.
permanent ip
Access Control Lists (ACLs) Groups of policies rules used for
filtering traffic (allow/deny)
disposition
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