Re: draft-ietf-ospf-iana-00

[Kireeti Kompella <kireeti at JUNIPER.NET>]

On Mon, 4 Apr 2005, Tom Petch wrote:

> I am curious about  the choice of four octet for enterprise code in 2.5.
>
> When used in SNMP, these codes have no effective limit on length;

I was under the impression that each number in an OID sequence was a
32-bit number.  Is that not right?  If so, the first enterprise with
an enterprise ID >= 2^32 would have more serious problems than not
being able to use OSPF Private Use spaces, assuming SNMP is still
around at that time.

> four octet does seem massive compared to current use (just like the
> four octet limit of IP address did a few years ago:-)

The first two billion (or four billion) enterprises will be able to
use the Private Space; the rest ... well, too bad.  Hmmm.  I wonder if
IANA will give me a /8 chunk of enterprise number space ...

> I wonder if it is worth a comment in the I-D that this is imposing a
> limit not present in the IANA registratoin, albeit one that
> hopefully will last some time.

I'm not against that, although the answer above may address this.  On
the other hand, if an OID can only take four octet numbers, either
IANA or RFC 2578 should state the issues that enterprises with numbers
>= 2^32 will face.

Kireeti.
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