Re: draft-ietf-ospf-iana-00

[Kireeti Kompella <kireeti at JUNIPER.NET>]

On Tue, 5 Apr 2005, Tom Petch wrote:

> > I was under the impression that each number in an OID sequence was a
> > 32-bit number.  Is that not right?
>
> Not so.  BER.1 encodes the sub-identifiers of an OID (after the
> first two) in what I think of as CCITT encoding, using 7 bits per
> octet with the other bit as a flag to say this is (or is not) the
> last octet.  So a 7 bit sub-identifier encodes in one octet, 14 bit
> in two and so on.

Yeesh!  Thanks for the info -- I would never have guessed.

> I have never seen any other limit imposed and - knowing ISO - I

Oh, well.  Does anyone care?

Where were you when I wrote what became RFC 3936 (see section 2, para 3)?

> would not expect there to be one (apart from the overall limit on
> length of a TLV which is 2**1008 octet - this is ISO:-).

If every atom could encode one octet, how many galaxies would that be?
:-)

Kireeti.
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