Configuring A Forwarding Group; Creating A Forwarding Group; Nesting A Forwarding Group - H3C S5820X Series Configuration Manual

NOTE:
The WRR queue scheduling algorithm configured in a forwarding profile schedules packets in the unit of
•
bytes. The WRR scheduling weight has the same meaning as that for a generic WRR queue. The HQoS
forwarding groups can be scheduled together with generic WRR queues with byte-based weights. WRR
directly uses the weights of the HQoS forwarding groups for scheduling packets. For more information
about how forwarding groups are scheduled together with generic WRR queues, see
scheduler policy to a
chapter "Congestion management configuration".
You will fail to modify a forwarding profile that has been associated with one or more forwarding
•
groups, if the modification is invalid for any of its associated forwarding group.
• When you modify a forwarding profile already applied to a port, the modification may fail because of
insufficient hardware resources.

Configuring a forwarding group

A forwarding group is a basic scheduling entity in a scheduler policy, and is also an instantiation object.
Forwarding group configuration tasks include the following steps:

Creating a forwarding group

•

Nesting a forwarding group

•
Creating a forwarding group
Follow these steps to create a forwarding group:
To do...
Enter system view
Create a forwarding group
Nesting a forwarding group
To achieve two-level traffic scheduling for some traffic, nest several forwarding groups in a parent
forwarding group, for example, forwarding groups FG I_1 through FG I_10 in forwarding group FG I in
Figure 26.
In a parent forwarding group, you associate each child forwarding group with an SP or WRR forwarding
profile.
If some child forwarding groups use SP scheduling and others use WRR scheduling, HQoS schedules
traffic for the child forwarding groups that use SP scheduling first, and then schedules traffic for groups
associated with WRR forwarding profiles in a round robin fashion.
When performing SP scheduling, HQoS schedules traffic for the child forwarding groups in the reverse
configuration order: the last nested child forwarding group is scheduled first.
port." For more information about the scheduling units of WRR queues, see the
Use the command...
system-view
qos forwarding-group fg-name [ id
fg-id ]
91
"Applying a
Remarks
—
Required
You can also use this command to
enter the view of an existing
forwarding group