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Example: Port-Type QoS Profile Attachment
In this example, three ATM subinterfaces are configured on an ATM port:
- ATM 11/0.1—QoS profile qp1 is attached
- ATM 11/0.2—QoS profile qp2 is attached
- ATM 11/0.3—No QoS profile is attached
The major ATM interface, 11/0, does not have a QoS profile explicitly attached. Therefore, by default the atm-default QoS port-type profile is attached.
Figure 1: Attaching QoS Profiles to ATM Subinterfaces
To configure this example:
- Create and configure QoS profile qp1. host1(config)#qos-profile qp-1 host1(config-qos-profile)#atm-vp node scheduler-profile sp1 host1(config-qos-profile)#atm-vc queue traffic-class tc1 scheduler-profile sp1 queue-profile qp1 host1(config-qos-profile)#atm-vc queue traffic-class tc2 scheduler-profile sp2 queue-profile qp2 host1(config-qos-profile)#atm-vc queue traffic-class tc3 scheduler-profile sp3 queue-profile qp3 host1(config-qos-profile)#atm-vc queue traffic-class tc4 scheduler-profile sp4 queue-profile qp4 host1(config-qos-profile)#atm-vc queue traffic-class tc5 scheduler-profile sp5 queue-profile qp5 host1(config-qos-profile)#exit
- Create and configure QoS profile qp2. host1(config)#qos-profile qp2 host1(config-qos-profile)#atm-vp node scheduler-profile sp1 host1(config-qos-profile)#atm-vc queue traffic-class tc1 scheduler-profile sp1 queue-profile qp1 host1(config-qos-profile)#atm-vc queue traffic-class tc2 scheduler-profile sp2 queue-profile qp2 host1(config-qos-profile)#atm-vc queue traffic-class tc3 scheduler-profile sp3 queue-profile qp3 host1(config-qos-profile)#exit
- Attach the QoS profiles to the ATM subinterfaces, as shown
in Figure 1. host1(config)#interface atm 11/0.1 host1(config-subif)#qos-profile qp1 host1(config-subif)#exit host1(config)#interface atm 11/0.2 host1(config-subif)#qos-profile qp2 host1(config-subif)#exit
- Display the QoS interface hierarchy for ATM interface
11/0. This display shows all QoS attachments above interface 11/0.
If no QoS profiles are attached above the specified interface, the router shows the first attachment below the specified interface.
host1# show qos interface-hierarchy interface atm 11/0 attachment@ atm-vc ATM11/0.2: qos interface rule traffic scheduler queue t-class profile type type class profile profile group ------- --------- ---- ------- --------- ------- ------- qp2@ATM11/0.2 atm-vp node sp1 default qp2@ATM11/0.2 atm-vc queue tc1 sp1 qp1 qp2@ATM11/0.2 atm-vc queue tc2 sp2 qp2 qp2@ATM11/0.2 atm-vc queue tc3 sp3 qp3 atm-default @atm ip node default default atm-default @atm atm-vc node default default atm-default @atm Bridge node default default atm-default @atm ipv6 node default default atm-default @atm ip queue best-effort default default atm-default @atm atm queue best-effort default default atm-default @atm atm-vc queue best-effort default default atm-default @atm Bridge queue best-effort default default atm-default @atm ipv6 queue best-effort default default attachment@ atm-vc ATM11/0.1: qos interface rule traffic scheduler queue t-class profile type type class profile profile group ------- --------- ---- ------- --------- ------- ------- qp1@ATM11/0.1 atm-vp node sp1 default qp1@ATM11/0.1 atm-vc queue tc1 sp1 qp1 qp1@ATM11/0.1 atm-vc queue tc2 sp2 qp2 qp1@ATM11/0.1 atm-vc queue tc3 sp3 qp3 qp1@ATM11/0.1 atm-vc queue tc4 sp4 qp4 qp1@ATM11/0.1 atm-vc queue tc5 sp5 qp5 atm-default @atm ip node default default atm-default @atm atm-vc node default default atm-default @atm Bridge node default default atm-default @atm ipv6 node default default atm-default @atm ip queue best-effort default default atm-default @atm atm queue best-effort default default atm-default @atm atm-vc queue best-effort default default atm-default @atm Bridge queue best-effort default default atm-default @atm ipv6 queue best-effort default default
ATM subinterface 11/0.3 was not shown because no QoS profile is attached to it. You can display the QoS interface hierarchy for subinterface 11/0.3 by specifying the subinterface, as shown below. In this case, the QoS port-type profile, atm-default, is attached (by default) to the ATM major interface, ATM 11/0, below ATM subinterface 11/0.3. Because no QoS profile is attached to this ATM subinterface, the QoS port-type profile is applied.
The @atm in the qos profile column indicates that the row comes from a default QoS port-type profile that is below the interfaces shown: subinterfaces ATM 11/0.2 and ATM 11/0.1 in this example.
You can explicitly show the ATM subinterface that has no explicit QoS profile attachment, as shown below. In this case, attachment@ indicates the ATM major interface (11/0) below the subinterface.
host1# show qos interface-hierarchy interface atm 11/0.3
attachment@ atm ATM11/0:
qos interface rule traffic scheduler queue t-class
profile type type class profile profile group
------- --------- ---- ------- --------- ------- -------
atm-default@atm ip node default default
atm-default@atm atm-vc node default default
atm-default@atm Bridge node default default
atm-default@atm ipv6 node default default
atm-default@atm ip queue best-effort default default
atm-default@atm atm queue best-effort default default
atm-default@atm atm-vc queue best-effort default default
atm-default@atm Bridge queue best-effort default default
atm-default@atm ipv6 queue best-effort default default
