Configuring Shadow Nodes

Before you configure shadow nodes:

Configure the traffic classes.
See Configuring Traffic Classes That Define Service Levels.
Configure the queuing hierarchy.
See Configuring Queue Profiles to Manage Buffers and Thresholds.
Configure the scheduler hierarchy and shaping with scheduler profiles.
See Configuring a Scheduler Hierarchy.

To add a shadow node to a QoS profile:

Create a QoS profile and enter QoS Profile Configuration mode.host1(config)#qos-profile shadowNode host1(config-qos-profile)#
Configure a scheduler node for each interface of the specified type. host1(config-qos-profile)#atm node scheduler-profile default
Configure a shadow node for each interface of the specified type.host1(config-qos-profile)#atm shadow-node scheduler-profile default
Configure a queue for interfaces in the specified traffic class.host1(config-qos-profile)#atm queue traffic-class strict-priority scheduler-profile scheduler1
(Optional) Configure a traffic-class group and reference a scheduler profile in the QoS profile.host1(config-qos-profile)#atm group default scheduler-profile default

The router creates the shadow node when the following conditions are met:

After all the nodes and group nodes are created.
If the queues are not at the required scheduler level.
When a node of the same interface type has existed in the same group of the scheduler hierarchy.