Tcam Carving For Fex Qos - Cisco Nexus 9000 Series Configuration Manual

FEX QoS Configuration
• Output queuing

TCAM Carving for FEX QoS

You must free up unused TCAM space to accommodate TCAM carving for FEX QoS.
• For FEX QoS TCAM carving for IPv4 traffic, you can use the hardware access-list tcam region fex-qos
Bandwidth Remaining
Priority
System Level
Action
Bandwidth
Bandwidth Remaining
Priority
(only level 1 on FEX, 3 levels on
switch)
Interface Level
Action
Bandwidth
Bandwidth Remaining
Priority
256 command.
As a best practice, you can use the hardware access-list tcam region fex-qos-lite 256 command when
policers are not used.
The fex-qos-lite region does not have conformed policer statistics support for IPv4.
Note
Cisco Nexus 9000 Series NX-OS Quality of Service Configuration Guide, Release 7.x
No
No
Hardware Implementation
Direction: OUT
FEX
Yes
Yes
Yes
Hardware Implementation
Direction: OUT
FEX
No
No
No
TCAM Carving for FEX QoS
No
No
Switch
Yes
Yes
Yes
Switch
Yes
Yes
Yes
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