H Commands
This chapter describes the Cisco NX-OS quality of service (QoS) commands that begin with H.
hardware multicast disable-slow-port-pruning
To disable slow port pruning on multicast packets, use the hardware multicast disable-slow-port-pruning command. To enable show port pruning, use the no form of this command.
hardware multicast disable-slow-port-pruning
no hardware multicast disable-slow-port-pruning
Syntax Description
Command Default
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Usage Guidelines

Note This command is applicable to only Cisco Nexus 5548 switches.
Examples
This example shows how to disable slow port pruning for multicast packets on a switch:
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hardware profile tcam feature interface-qos limit
To configure the QoS TCAM limit, use the hardware profile tcam feature interface-qos limit command.
hardware profile tcam feature interface-qos limit tcam-size
Syntax Description
Interface QoS TCAM limit. The TCAM size can be from 7- 446 entries. |
Command Default
Command Modes
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Usage Guidelines
No interface policy entry should be present after the interface_qos limit in the QoS region of any TCAM.
Examples
This example shows how to set the interface QoS TCAM limit to 20 entries:
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hardware unicast voq-limit
To enable the virtual output queuing (VOQ) limit for unicast traffic on a switch, use the hardware unicast voq-limit command. To disable the VOQ limit, use the no form of this command.
Syntax Description
Command Default
Command Modes
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Usage Guidelines

Note This command is applicable to only Cisco Nexus 5548 switches.
To alleviate congestion and blocking, you can use virtual output queuing (VOQ) to prevent one blocked receiver from affecting traffic that is being sent to other noncongested receivers (head-of-line blocking).
Examples
This example shows how to enable the VOQ limits for unicast packets on a switch:
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