Nexus 7000: How many VRF

[Philipp Hoeffker]

HI,

how many VRF are supported in NX-OS 5.X

3 Cisco Dokuments tell me another Thing.

1. 1000 overall    

     250 each VDC

2. 994 each VDC

3. 8000

Can some give me an answer ?

Philipp

[Reza Sharifi]

Hi,

The default value is 16.  The default maximum value is 8192.  The range is from 16 to 8192.

So the maximum number of supported vrf is 8192

http://www.cisco.com/en/US/docs/switches/datacenter/sw/4_2/nx-os/virtual_device_context/configuration/guide/vdc_nx-os.pdf

HTH

Reza

[Jerry Ye]

The answer is 1.

1000 VRF in the system, 250 per VDC if you are using all 4 VDCs - This is for NXOS after 5.0.2 or above.

Pre 4.2.1, it is 800 per system and 200 per VDC.

HTH,

jerry

[Philipp Hoeffker]

Ok same problem here or i have a problem to understand this,

onside there are over 8000 vrf´s and on the other side 1000. What is the correct answer ?

3 Documents = 3 Different anwers for the same question ......

1.

http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/VMDC/2.0/design_guide/design.pdf

2.

http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/virtual_device_context/configuration/guide/vdc_templates.html

3.

http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/unicast/configuration/guide/l3_limits.html

[Jerry Ye · Accepted solution]

1.

http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/VMDC/2.0/design_guide/design.pdf

Page 2-25, Table 2-4, it clearly stated that it supports 1000 per-system and 250 per VDC.

2.

http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/virtual_device_context/configuration/guide/vdc_templates.html

Table 2-1 is the number of resources you can allocated to the VDC, not number of VRFs you can run (I know this is confusing). If you look at Table 2-2, it is the default resource where VRF is configured to 1000 which match what I told you. Let me give you a quick example, you can try to configure all 4000+ VLANs, but it doesn't mean system will not run out of memory and accept it.

3.

http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/unicast/configuration/guide/l3_limits.html

Table B-1, the 1000 VRF is there and it is correct. (994 is based on 1 management vrf per VDC. The other 2 reserve, I am not 100% sure, I need to do research).

My previous answer is not based on all these links. I got it from the internal BU page.

Regards,

jerry

[Reza Sharifi]

Jerry,

Thanks for clarifying and providing further info (+5)

Indeed, this is very confusing

Reza

[Jerry Ye]

I know Reza. If I don't have the internal page I will not be this sure.

Regards,

jerry