On 8/12/2016 1:05 PM, Tom Herbert wrote: >> The tide there is turning; even the OPS groups are starting to admit >> > that we can't simply deprecate IP options, but we can do things to >> > encourage their more widespread support (e.g., limit the chain, etc.). >> > > I hope you're right and extension headers do become deployable someday... > >> > Middleboxes ignore or misimplement options by design; they''re never >> > useful as a constraint for protocol design. > Wouldn't placing a limit on the header length chain as you alluded to > above be an example of such a constraint on protocol design?
The proposal is to change the bound on the chain length in the requirements. That's different from limiting chain length because middleboxes are broken or ignore requirements. Joe
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