On Tue, Sep 25, 2018 at 01:36:24PM -0700, Qing Yang wrote:
> Well, I would argue that as an RFC, it should not be tied to a specific 
> implementation, particularly if it’s a restriction. For the records, Arista 
> implementation has the choice of not discarding such updates. 

So, when your implementation is configured to discard updates, how do you
expect things to behave?

[mix of top and bottom post preserved for context]

-- Jeff

> At a minimum I’d suggest the wording to be changed to ‘updates’ rather than 
> prefixes to avoid confusion. 
> 
> > On Sep 25, 2018, at 1:27 PM, Jeffrey Haas <[email protected]> wrote:
> > 
> > 
> >> On Sep 25, 2018, at 2:53 PM, Qing Yang <[email protected]> 
> >> wrote:
> >> 
> >> But the 'rejected prefix due to a policy' really is a function of two 
> >> entity: the incoming updates, and the policy itself. Let us say, you 
> >> receive 10 prefixes from a peer, and the policy is rejecting 5, and you 
> >> show the counter as 5. Later on, you change the policy to accept all, 
> >> without receiving any update, shouldn't the rejected prefix due to policy 
> >> drop to 0 at this point, but then the counter will prevent us from doing 
> >> it, and thus the station would not know from this design?
> > 
> > If you recall that in many cases in many implementations that rejected 
> > routes are discarded and no longer in the RIB at all, I suspect being a 
> > counter makes somewhat more sense to you.
> > 
> > -- Jeff
> > 

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