H3C Technologies H3C SR8800 - Manual (Page 82)

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• Forwarding group
A forwarding group is a scheduling entity (a branch node) in the scheduler policy tree. Multiple
forwarding groups or forwarding classes can be nested in a forwarding group. A forwarding
group corresponds to a scheduler. The parameters associated with a forwarding group determine
the scheduling priority and bandwidth resources assigned to the forwarding group.
• Forwarding profile
Forwarding profiles are scheduling rules configured for the scheduling entities in a scheduler
policy. A forwarding profile contains the scheduling priority, scheduling weight, shaping
parameters, and drop parameters. It determines the actions to take on the traffic passing the
forwarding class or forwarding group associated with the forwarding profile.
• Drop profile
Drop profiles are drop rules defined for queues. As dropping packets is a traffic management
behavior, you must nest a drop profile within a forwarding profile for the drop profile to take
effect.
• Scheduler policy
Scheduler policies are sets of scheduling entities. From an scheduler policy, a hierarchical tree of
schedule entities stretches out with forwarding groups at the second layer and forwarding classes
or other forwarding groups under the second-layer forwarding groups.
• Scheduling layer
A scheduling layer indicates the nesting layer of a scheduling entity in the scheduler policy. A
forwarding group must match certain criteria at the corresponding layer.
• Instantiation
Instantiation is a special match operation. A scheduling entity matches criteria in the instantiation
process. An instantiation entity is the result of instantiating a forwarding group. A forwarding
group can have multiple instances, with each using a distinct scheduler. The difference between
the instances of a forwarding group lies in only the instantiation rules.
Instantiation can be performed in one of the following modes:
{
Match mode—You must explicitly specify instantiation criteria for a forwarding group to be
instantiated.
{
Group mode—You do not need to specify instantiation criteria explicitly for a forwarding group
to be instantiated, but you must do that for the child forwarding groups in the forwarding group
to be instantiated.
HQoS configuration task list
Configuring HQoS is to create a scheduler policy tree. You must create nodes (scheduling entities) first,
associate these insular nodes and specify traffic actions for each node then, and at last, configure match
criteria for each branch nodes of the tree to determine the path of the traffic in the tree.