At 09:07 PM 10/6/2003, Paul Kyzivat wrote:
>When I see something using "lr=on", I am inclined to think that I may also see 
>"lr=off" in some other context.
>
>Its easy to treat "lr=X" the same as "lr" regardless of X. Its less easy to 
>distinguish one unspecified set of values that mean TRUE from another  unspecified 
>set of values that mean FALSE.

Oh, I now see where the confusion comes from -- I never tried to think
of processing the value whereas others did. Well, I think that robust
implementations test presence of lr parameter and ignore value, be it
there too or not. (RFC3261 speaks about lr _presence_ too: "The lr parameter, 
when present, indicates that the element responsible for this resource 
implements the routing mechanisms specified in this document." S. 19.1)
Also, I think that robust iplementations piggy-back the parameter
"as is".


>Does anything known *ever* use "lr=X" for some value of X other than "on"?

I'm not aware of any such which would show a value with negative meaning.

-jiri 

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