Re: [mpls] Reference Augmented Forwarding - MPLS RAF

[Tony Li <[e-mail]>]

Hi Robert,



> Assume we compare actions to 26 letters in the English alphabet and network to a book. 
> 
> Does this mean that each book must at least contain fact(26) of words ? 
> 
> That would be 403,291,461,126,605,635,584,000,000 of them :) 
> 
> I am focusing on picking words which are operationally useful and pointing to those words with RFV as pragmatic and operationally valid approach.


Of course not.  ;-)

The point is to understand how your proposal works at scale, when the demand grows to three orders of magnitude larger than we expect.  That’s what happens on the Internet.

The point here is simple: the state required ends up scaling as the product of the options selected. One RFV for each different behavior that the operator wants to support.  A different slice value is a different behavior. A different ECMP value is a different behavior. 

I’m scared.

Tony