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17-2
Cisco Nexus 1000V Troubleshooting Guide, Release 5.2(1)SV3(1.1)
OL-31593-01
Chapter 17 Quality of Service
QoS Troubleshooting Commands
Note
We recommend that the class-map should be applied on a maximum of 2000 interfaces. If you apply class
maps on more than 2000 interfaces, the
service-policy command could fail.
QoS Troubleshooting Commands
The commands listed in this section can be used on the VSM to see the policies that are configured and
applied on the interfaces.
Table 17-1 QoS Configuration Limits
Item DVS Limit Per Server Limit
Class map 1024 1024 (with policies)
Policy map 128 128
Policy instances 12288 1024
Table 17-2 QoS Configuration Limits
Item Limit
Match criteria per class map 32
Classes per policy map can be of type qos or
queuing 64
Match rules under policy map 200
Command Purpose
show policy-map [policy-map-name]
show class-map [class-map-name]
Displays the configured policies and class-maps.
show policy-map interface Displays the number of packets hitting the
configured policies.
show policy-map interface input/output Displays only the installed policies of type
input/output.
show policy-map interface type qos/queuing Displays the installed policies based on type.
show system internal cdm info app sap 377
detail Checks the (class map/policy map) configuration
delivered by VSM to the connected modules.
See Example 17-1 on page 17-3
show resource-availability qos-queuing Checks whether the QoS configuration is not
exceeding the recommended resource limits.
show policy-map interface brief Displays the installed policies: