[c-nsp] number of VRFs on Cisco Cat/7600

[David Sinn]

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Sup720's support a Max of 1024 VRF's.  See the datasheet:

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/product_data_sheet09186a0080159856.html

David

On Apr 23, 2009, at 10:20 AM, Adam Armstrong wrote:

> Marlon Duksa wrote:
>> I found this in Cisco documentation under the title "OSPF Support for
>> Unlimited Software VRFs per
>> Provider Edge Router" :
>>
>> "The OSPF Support for Unlimited Software VRFs per Provider Edge  
>> Router
>> feature allows for an
>> approximate range of 300 to 10,000 VRFs, depending on the particular
>> platform and on the applications,
>> processes, and protocols that are currently running on the platform."
>>
>> 10,000 VRF?
>>
>> 7600/Cat have a limitation of 4K internal VLANs and each L3 VPN  
>> (MPLS) takes
>> one of those, up to 512 L3 VPNs. After 512 L3 VPNs it takes 2  
>> internal
>> VLANs.
>>
>> This would max out L3 VPNs on 7600/Cat to less than 3K. I assume  
>> that L3 VPN
>> = VRF.
>>
>> Does anyone know how they arrived to this 10K VRFs number? It just  
>> does not
>> make sense.
> Unlimited *software* VRFs?
>
> adam.
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