About Qos Tcam Lite Regions - Cisco Nexus 9000 Series Configuration Manual

About QoS TCAM Lite Regions

You need to save the configuration and reload the system for the region configuration to become effective.
About QoS TCAM Lite Regions
IPV4 requires QoS TCAM regions to be double wide TCAMs to support conform/violate policer statistics.
If conform/violate statistics are not required, the size of the QoS TCAM entries can be reduced to single wide
TCAMs by using QoS TCAM lite regions. Policing is supported by these regions, however only violate
packets/bytes statistics are supported.
Table 17: QoS TCAM Regions (Release 7.1(3)I6(1))
Feature
Egress QoS
Table 18: QoS TCAM Lite Regions
Feature
Layer 3 QoS
Port QoS
VLAN QoS
FEX QoS
Note Cisco Nexus 9200 Series switches do not support QoS TCAM lite regions.
Note
The region is applicable only for ALE enabled devices and are required for classification policies applied on
40G uplink ports.
You need to save the configuration and reload the system for the region configuration to become effective.
Note Either the regular version or the lite version of the QOS TCAM can be enabled. Both cannot be enabled at
the same time. For example, either the IPv4 Port QoS or the IPv4 Port QoS lite version can be enabled at any
one time.
Cisco Nexus 9000 Series NX-OS Quality of Service Configuration Guide, Release 7.x
42
Purpose
QoS policy applied on interfaces in
output
direction.
Purpose
QoS policy applied on Layer 3
interfaces.
QoS policy applied on Layer 2
interfaces.
QoS policy applied on VLAN.
QoS policy applied on FEX
interfaces.
Configuring QoS TCAM Carving
Region Name
IPV4: e-qos-lite
See notes following table.
Region Name
IPV4: l3qos-lite
IPV4: qos-lite
IPV4: vqos-lite
IPV4: fex-qos-lite