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Beginner

Nating failed in nexus 9000

Hi

I am getting the below error when I am trying to configure NATing in  Nexus C93240YC-FX2 . Any one know what is the issue. Is that a bug ?

 

My OS version is 7.0(3)I7(3). Please advice

 

ERROR: NAT configuration Failed: aclqos: TCAM region is not configured. Please configure TCAM region and retry the command (err_id 0x410400C5)

SPINE_SW2_RACK-enable(config-if)# 2018 Nov  6 13:49:11 SPINE_SW2_RACK %$ VDC-1 %$ %ACLQOS-SLOT1-2-ACLQOS_FAILED: ACLQOS failure: TCAM region is not configured for feature SPM NAT inside class IPv4 direction ingress. Please configure TCAM region Ingress NAT [nat] and retry the command.
2018 Nov  6 13:49:11 SPINE_SW2_RACK %$ VDC-1 %$ %NAT-2-HW_PROG_FAILED: Hardware programming for NAT failed:TCAM region is not configured. Please configure TCAM region and retry the command(3)

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Cisco Employee

Re: Nating failed in nexus 9000

Hi @rishad ahammed,

 

It appears that you haven't carved the TCAM space for nat. We can find out the current TCAM utilization for all allocated regions and find out which regions can spare some entries with the command "sh hardware access-list tcam region "

 

In your case it would be: NAT ACL[nat] size =    0

 


To configure NAT on Nexus 9000 series platform, TCAM resources needs to be carved out for NAT by using the "hardware access-list tcam region nat" command. The number of entries (in multiples of 256) depends on the number of NAT entries we want the switch to supports.

 

Scalability:  https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/scalability/guide_703I44/b_Cisco_Nexus_9000_Series_NX-OS_Verified_Scalability_Guide_703I44.html

 

More on TCAM: https://www.cisco.com/c/en/us/support/docs/switches/nexus-9000-series-switches/119032-nexus9k-tcam-00.html

Note: You need to reload to see the affect after config. 

 

Please rate if you find it helpful.

 

Regards,

MJ

 

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3 REPLIES 3
Highlighted
Cisco Employee

Re: Nating failed in nexus 9000

Hi @rishad ahammed,

 

It appears that you haven't carved the TCAM space for nat. We can find out the current TCAM utilization for all allocated regions and find out which regions can spare some entries with the command "sh hardware access-list tcam region "

 

In your case it would be: NAT ACL[nat] size =    0

 


To configure NAT on Nexus 9000 series platform, TCAM resources needs to be carved out for NAT by using the "hardware access-list tcam region nat" command. The number of entries (in multiples of 256) depends on the number of NAT entries we want the switch to supports.

 

Scalability:  https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/scalability/guide_703I44/b_Cisco_Nexus_9000_Series_NX-OS_Verified_Scalability_Guide_703I44.html

 

More on TCAM: https://www.cisco.com/c/en/us/support/docs/switches/nexus-9000-series-switches/119032-nexus9k-tcam-00.html

Note: You need to reload to see the affect after config. 

 

Please rate if you find it helpful.

 

Regards,

MJ

 

View solution in original post

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Beginner

Re: Nating failed in nexus 9000

Thanks alot mojafri

   its working  and the issue has resolved

 

  

 

 

Highlighted
Cisco Employee

Re: Nating failed in nexus 9000

Anytime..Cheers !!