How to enable "Fallback Global" feature on IOS?

[jefferyshi]

Hi

I want to enable "fallback global" feature on the PE-CE IP interface.

I have a request:

I want enable this option, the PE simultaneous can performs two different lookups when a packet arrives from the CE. One lookup is in the IP routing table of the VRF; the other lookup is in the golble IP routing table.

But seem this command don't exist in IOS.

How can I achieve this feature?

Thanks!

Jeffrey

[rkhalil · Accepted solution]

The “fallback global” VRF option does not exist in Cisco IOS, this feature were still in development.

It looks like the engineers that switched from Cisco to Juniper took the concept with them and implemented it in JunOS, so JunOS has this feature but IOS doesn't.