Alcatel-Lucent 7210 SAS E OS Quality Of Service Manual page 98

Service access switch
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QoS Commands
dot1p
Syntax
dot1p dot1p-priority fc fc-name profile {in | out}
no dot1p dot1p-priority
Context
config>qos>network>ingress
Description
This command explicitly sets the forwarding class or enqueuing priorityand profile of the packet
when a packet is marked with a dot1p-priority specified. Adding a dot1p rule on the policy forces
packets that match the dot1p-priority specified to be assigned to the forwarding class and profile of
the packet based on the parameters included in the Dot1p rule.
The dot1p-priority is derived from the most significant three bits in the IEEE 802.1Q or IEEE 802.1P
header. The three dot1p bits define 8 Class-of-Service (CoS) values commonly used to map packets to
per-hop Quality-of-Service (QoS) behavior.
The no form of this command removes the explicit dot1p classification rule from the policy. Remov-
ing the rule on the policy immediately removes the rule on all ingress ports using the policy.
Parameters
dot1p-priority — This value is a required parameter that specifies the unique IEEE 802.1P value that
fc fc-name — The value given for the fc-name parameter must be one of the predefined forwarding
profile {in | out} — All packets that are assigned to this forwarding class will be considered in or out
fc
Syntax
[no] fc fc-name [create]
Context
config>qos>network>ingress
Description
This command creates a class instance of the forwarding class. Once the fc-name is created, classifi-
cation actions can be applied and it can be used in match classification criteria.
The no form of the command removes all the explicit meter mappings for fc-name forwarding types.
The meter mappings revert to the default meters for fc-name.
Default
Undefined forwarding classes default to the configured parameters in the default policy policy-id 1.
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will match the dot1p rule. If the command is executed multiple times with the same dot1p-value,
the previous forwarding class is completely overridden by the new parameters .
A maximum of eight dot1p rules are allowed on a single policy.
Values
0 — 7
classes in the system. Specifying the fc-name is optional. When a packet matches the rule, the
forwarding class is only overridden when the fc fc-name parameter is defined on the rule. If the
packet matches and the forwarding class is not explicitly defined in the rule, the forwarding class
is inherited based on previous rule matches.
Values
be, l2, af, l1, h2, ef, h1, nc
of profile based on this command . In case of congestion, the in-profile packets are preferentially
queued over the out-of-profile packets.
Default
none, the profile name must be specified.
7210 SAS-E OS Quality of Service Guide

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