Cisco Nexus 9000 Series - Page 282

Total SizeWidthSizeRegion Name
5121512vPC convergence
4K
To enable an egress IPv6 RACL of size 256, reduce the egress IPv4 RACL to 256 and add the egress IPv6
RACL:
switch(config)# hardware access-list tcam region e-racl 256
Warning: Please reload the linecard for the configuration to take effect
switch(config)# hardware access-list tcam region e-ipv6-racl 256
Warning: Please reload the linecard for the configuration to take effect
Table 29: Default TCAM Region Configuration After Reducing the IPv4 RACL (Egress)
Total SizeWidthSizeRegion Name
2561256IPv4 RACL
5122256IPv6 RACL
2561256System
1K
After you adjust the TCAM region sizes, enter the show hardware access-list tcam region command to
display the TCAM sizes that will be applicable on the next reload of the device.
To keep all modules synchronized, you must reload all line card modules or enter copy running-config
startup-config + reload to reload the device. Multiple TCAM region configurations require only a single
reload. You can wait until you complete all of your TCAM region configurations before you reload the device.
Attention
Depending on the configuration, you might exceed the TCAM size or run out of slices.
If you exceed the 4K ingress limit for all TCAM regions when you configure a TCAM region, the following
message appears:
ERROR: Aggregate TCAM region configuration exceeded the available Ingress TCAM space. Please
re-configure.
If you exceed the number of slices, the following message appears:
ERROR: Aggregate TCAM region configuration exceeded the available Ingress TCAM slices.
Please re-configure.
If you exceed the 1K egress limit for all TCAM regions when you configure a TCAM region, the following
message appears:
ERROR: Aggregate TCAM region configuration exceeded the available Egress TCAM space. Please
re-configure.
If TCAM for a particular feature is not configured and you try to apply a feature that requires TCAM carving,
the following message appears:
ERROR: Module x returned status: TCAM region is not configured. Please configure TCAM
region and retry the command.
Cisco Nexus 9000 Series NX-OS Security Configuration Guide, Release 9.x
256
Configuring IP ACLs
Configuring TCAM Carving