Re: [mpls] MPLS label and LSE data models

[Jeffrey Haas <[e-mail]>]

Xufeng,

On Thu, Jul 13, 2017 at 04:14:18PM +0000, Xufeng Liu wrote:
> Thanks for looking at this. You are right, but we are still discussing various approaches for the static MPLS and the conclusion has not been reached yet. 
> We'd like to hear what you think and appreciate your comments.

To offer a suggestion, order the stack from bottom (lowest number) to top
(highest).  Require that bottom of stack be element index zero.

My yang constraints are a bit weak but I believe you can construct an XPath
that requires that a node of index 0 must be present.

The above two suggestions don't help with the issues of needing to sort the
list by index in order to generate the stack, but it does at least remove
any possible ambiguity about the critical bottom of stack semantic.

-- Jeff