Cisco Nexus 9000 Series Configuration Manual page 62

Enabling VLAN QoS (IPv4)
Procedure
Command or Action
Step 1 hardware access-list tcam region region tcam-size
Step 2 hardware access-list tcam region region tcam-size
Example
This example sets the VLAN QoS (IPv4) TCAM size to 256. A VLAN QoS (IPv4) of size 256 takes
512 entries because QoS TCAM is double wide.
• Reduce the ingress Port QoS (IPv4) by 256 bytes (QoS features are double wide, 2 x 256 = 512)
and add an ingress VLAN QoS (IPv4) with 256 (2 x 256).
switch(config)# hardware access-list tcam region qos 0
switch(config)# hardware access-list tcam region vqos 256
Table 24: Updated TCAM Region Configuration After Reducing the IPv4 Port QoS Ingress
Cisco Nexus 9000 Series NX-OS Quality of Service Configuration Guide, Release 7.x
48
Warning: Please reload the linecard for the configuration to take effect
Warning: Please reload the linecard for the configuration to take effect
Region Name Size
PACL (IPV4) 512
Port QoS (IPV4) 0
VLAN QoS(IPV4) 256
VACL (IPV4) 512
RACL(IPV4) 512
System 256
COPP 256
Redirect 512
SPAN 256
VPC Converg 256
Purpose
To enable carving for your VLAN QoS (IPv4) TCAM
region, specify another region to free up resources. Also
specify the reduced TCAM size for the region.
Note Repeat this step for as many regions as necessary
to free up sufficient resources to carve the new
VLAN QoS (IPv4) TCAM region.
Carve the new VLAN QoS (IPv4) TCAM region including
the TCAM size (number of double wide entries).
Width
1
2
2
1
1
2
2
1
1
1
Configuring QoS TCAM Carving
Total Size
512
0
512
512
512
512
512
512
256
256
4K