Alcatel-Lucent 7450 Quality Of Service Manual page 255

Context config>qos>sap-ingress
Description
This command explicitly sets the forwarding class or sub-class enqueuing priority when a packet is
marked with a MPLS EXP bits specified. Adding a lsp-exp rule on the policy forces packets that match
the MPLS LSP EXP specified to override the forwarding class and enqueuing priority based on the
parameters included in the lsp-exp rule. When the forwarding class is not specified in the rule, a
matching packet preserves (or inherits) the existing forwarding class derived from earlier matches in
the classification hierarchy. When the enqueuing priority is not specified in the rule, a matching packet
preserves (or inherits) the existing enqueuing priority derived from earlier matches in the classification
hierarchy.
The lsp-exp-value is derived from the MPLS LSP EXP bits of the top label.
Multiple commands can be entered to define the association of some or all eight LSP EX bit values to
the forwarding class.
The no form of this command removes the explicit lsp-exp classification rule from the SAP ingress
policy. Removing the rule on the policy immediately removes the rule on all ingress SAPs using the
policy.
This command applies to Ethernet Layer 2 SAPs only.
Default
none
Parameters lsp-exp-value — This value is a required parameter that specifies the unique MPLS LSP EXP
fc fc-name — The value given for the fc-name parameter must be one of the predefined
Quality of Service Guide
value that will match the lsp-exp rule. If the command is executed multiple times with the
same lsp-exp-value, the previous forwarding class and enqueuing priority is completely
overridden by the new parameters or defined to be inherited when a forwarding class or
enqueuing priority parameter is missing.
A maximum of eight lsp-exp rules are allowed on a single policy.
Values
0 to 7
forwarding 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.
The sub-class-name parameter is optional and used with the fc-name parameter to define a
preexisting sub-class. The fc-name and sub-class-name parameters must be separated by a
period (dot). If sub-class-name does not exist in the context of fc -name, an error will occur.
Values
fc: class[.sub-class]
Default None (Each sub-class-name must be explicitly defined)
Service Egress and Ingress QoS Policies
class: be, l2, af, l1, h2, ef, h1, nc
sub-class: 29 characters max
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