Policy Applications - OmniSwitch os6900 Network Configuration Manual

Policy Applications

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 can be as simple as identifying a Layer 2 or Layer 3 address of an incoming flow. Treat-
ing 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:
Type of Policy
Basic QoS policies
Redirection policies
Policy Based Mirroring
ICMP policies
802.1p, ToS, and DSCP tagging or
mapping policies
Policy Based Routing (PBR)
Access Control Lists (ACLs)
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
Policies can also be used for prioritizing traffic in dynamic link aggregation groups. For more information
about dynamic link aggregates, see
Basic QoS Policies
Traffic prioritization and bandwidth policing can be the most common types of QoS policies. For these
policies, any condition can be created; the policy action indicates how the traffic must be prioritized or
how the bandwidth must be shaped.
Note. If multiple addresses, services, or ports must be given the same priority, use a policy condition
group to specify the group and associate the group with the condition. See
Policies" on page 25-53
page 25-74
Description
Prioritizes and polices particular
flows.
Redirects flows to a specific port
or link aggregate ID.
Mirrors ingress and egress pack-
ets to a specific port.
Filters, prioritizes, and/or rate
limits ICMP traffic
Sets or resets the egress 802.1p,
ToS, or DSCP values
Redirects routed traffic.
Groups of policies rules used for
filtering traffic (allow/deny)
Chapter 25, "Configuring QoS."
Chapter 8, "Configuring Dynamic Link Aggregation."
for more information about groups.
OmniSwitch AOS Release 7 Network Configuration Guide
Configuring QoS
Action Parameters Used
maximum bandwidth
maximum depth
priority
cir cbs pir pbs
redirect port
redirect linkagg
ingress mirror
egress mirror
ingress egress mirror
disposition
priority
maximum bandwidth
802.1p
tos
dscp
map group
permanent ip
disposition
"Using Condition Groups in
June 2013