Cisco Nexus N3K PBR无法启用，报错信息如下：
C3524-2(config-if)# show hardware profile tcam region
sup size = 48
vacl size = 640
ifacl size = 400
qos size = 192
span size = 0
racl size = 1536
e-racl size = 256
e-vacl size = 640
qoslbl size = 0
ipsg size = 0
arpacl size = 0
ipv6-racl size = 0
ipv6-e-racl size = 0
ipv6-sup size = 0
ipv6-qos size = 0
e-qos size = 64
pbr size = 0
ipv6-pbr size = 0
e-ipv6-qos size = 0
e-mac-qos size = 0
e-qos-lite size = 0
mcast-bidir size = 0
ipv6-span size = 0
ipv6-span-l2 size = 0
nat size = 256
rbacl size = 0
copp size = 64
fhs size = 0
Unknown size = 0
C3524-2(config)# hardware profile tcam region pbr 128
ERROR: Aggregate TCAM region configuration exceeded the available Ingress TCAM space. Please re-configure.
C3524-2(config-if)# ip policy route-map filesrv_to_sitevpn
% Could not apply PBR route-map - TCAM region is not configured. Please configure TCAM region and retry the command
