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

[Marlon Duksa]

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.
Thanks,
Marlon