Virtual Private LAN Services
Page 690 7750 SR OS Services Guide
If a port scheduler is not defined on the egress port, the queues are allowed to operate based on their
own bandwidth parameters.
The no form of the command removes the aggregate rate limit from the SAP or multi-service site.
Parameters agg-rate — Defines the rate, in kilobits-per-second, that the maximum aggregate rate that the queues
on the SAP or MSS can operate.
Values 1 — 40000000, max
queue-frame-based-accounting — This keyword enables frame based accounting on all queues
associated with the SAP or Multi-Service Site. If frame based accounting is required when an
aggregate limit is not necessary, the max keyword should precede the queue-frame-based-accounting
keyword. If frame based accounting must be disabled, execute agg-rate-limit without the queue-
frame-based-accounting keyword present.
Default Frame based accounting is disabled by default
agg-rate-limit
Syntax agg-rate-limit agg-rate
no agg-rate-limit
Context config>service>vpls>sap>ingress
Description This command defines a maximum total rate for all ingress queues on a service SAP or multi-service
site. The agg-rate-limit command is mutually exclusive with the egress scheduler policy. When an
egress scheduler policy is defined, the agg-rate-limit command will fail. If the agg-rate-limit
command is specified, an attempt to bind a scheduler-policy to the SAP or multi-service site will fail.
A multi-service site must have a port scope defined that ensures all queues associated with the site are
on the same port or channel. If the scope is not set to a port, the agg-rate-limit command will fail.
Once an agg-rate-limit has been assigned to a multi-service site, the scope cannot be changed to card
level.
A port scheduler policy must be applied on the egress port or channel the SAP or multi-service site
are bound to in order for the defined agg-rate-limit to take effect. The egress port scheduler enforces
the aggregate queue rate as it distributes its bandwidth at the various port priority levels. The port
scheduler stops offering bandwidth to member queues once it has detected that the aggregate rate
limit has been reached.
If a port scheduler is not defined on the egress port, the queues are allowed to operate based on their
own bandwidth parameters.
The no form of the command removes the aggregate rate limit from the SAP or multi-service site.
Parameters agg-rate — Defines the rate, in Kbps, that the maximum aggregate rate that the queues on the SAP or
MSS can operate.
Values 1 — 40000000, max
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