Alcatel-Lucent 7750 Configuration Manual page 415

Scheduling classes correspond directly to the queue-IDs used by every queue on an HSMDA. All queues
with an ID of 1 associated with the scheduler are members of scheduling class 1 on the scheduler. Queues
with an ID of 2 are members of scheduling class 2. This is true through scheduling class 8.
When the scheduling class is not a member of a weighted group, the scheduling-class command may be used
to modify the maximum rate allowed for the scheduling class. This is done using the rate parameter followed
by either the max keyword or an actual rate defined as megabits-per-second. Use the rate max combination
to locally remove a rate limit defined for the class on the scheduling policy. When the rate megabits-per-sec-
ond combination is used, the scheduling class defined as class-id is rate limited to the specified rate. Either
the keyword max or a value for megabits-per-second must follow the rate keyword.
The rate keyword is mutually exclusive with the weight keyword. The weight keyword may only be speci-
fied when class-id is a member of a weighted scheduling group. When the weight keyword is specified, a
weight value specified as weight must follow. The new weight locally overrides the weight defined for the
scheduling class in the HSMDA scheduling policy.
When the scheduling-class command is executed, either the rate or weight keyword must follow.
When a scheduling class has a local rate override, the HSMDA policy associated with the override cannot
move the scheduling class into a weighted scheduling group. Similarly, when a scheduling class has a local
weight override, the HSMDA policy associated with the override cannot define a rate (neither max nor a
megabit-per-second value) for the scheduling class. The local overrides of the scheduling class must be
removed before these changes may be made.
The no form of the command removes the local overrides for the scheduling class. Once removed, the
defined behavior for the scheduling class within the HSMDA scheduling policy will used.
Parameters class — Identifies the scheduling class to be being overridden.
Values
rate — Overrides the HSMDA scheduler policies maximum rate for the scheduling class and requires either
the max keyword or a rate defined in megabits-per-second. In order for the rate keyword to be speci-
fied, the scheduling class cannot be a member of a weighted scheduling group as defined on the
HSMDA scheduling policy. The rate keyword is mutually exclusive with the weight keyword. Also,
either the rate or weight keyword must be specified.
The max keyword removes any existing rate limit imposed by the HSMDA scheduler policy for the
scheduling class allowing it to use as much total bandwidth as possible.
Values
weight weight-in-group — Overrides the weighted scheduler group weight for the scheduling class as
defined in the HSMDA scheduler policy. In order for the weight keyword to be specified, the scheduling
class must be a member of a weighted scheduling group as defined on the HSMDA scheduling policy. A
value represented by group-weight must follow the weight keyword. The new weight will be used to
determine the bandwidth distribution for member scheduling classes within the group of which the
scheduling class is a member.
Values
7750 SR Interface Configuration Guide
1 — 8
1 — 40000000, max (Mbps)
1 — 100
Interface Configuration
Page 415