On Feb 20, 2020, at 10:16 AM, <robert.stannard@bt.com> <robert.stannard@bt.com> wrote:
Thank you for the example in your email below. I've copied the example here,
BEGIN-VENDOR BT format=Extended-Vendor-Specific-1 ATTRIBUTE BT-Foo-Bar 1 integer ATTRIBUTE BT-Bar-Baz 2 integer ... END-VENDOR BT
Yes.
Could I ask a couple of follow-up questions then please. Following your example then would,
ATTRIBUTE BT-Foo-Bar 1 integer
translate to a dictionary reference-id of,
RFC 6929 calls this an "OID".
241.26.594.1
Yes.
where,
241.26 = Extended-Vendor-Specific-1 (evs data-type)
594 = BT
Yes.
1 = BT-Foo-Bar
Yes. :)
and similarly for,
ATTRIBUTE BT-Bar-Baz 2 integer
this becomes,
241.26.594.2
Exactly.
so when we read the dictionary file and find
format=Extended-Vendor-Specific-1
we need to "look-up"
Extended-Vendor-Specific-1 from our dictionaries to retrieve the 241.26 id - so this means that the definitions for evs need to have been loaded first before we can reference them as in the example you have shown?
Yes. The "Extended-Vendor-Specific-1" attribute MUST be loaded before the vendor dictionaries which use it. Alan DeKok.