Re: What ftypes are "compatible" enough for duplicate fields?

[Guy Harris <guy () alum mit edu>]

On Feb 21, 2014, at 10:43 AM, Hadriel Kaplan <hadriel.kaplan () oracle com> wrote:

> So this then:
> - FT_INT8, FT_INT16, FT_INT24 and FT_INT32
> - FT_UINT8, FT_UINT16, FT_UINT24, FT_UINT32, FT_IPXNET and FT_FRAMENUM

I'd be tempted to consider FT_IPXNET and FT_FRAMENUM to be *sui generis*; they might be displayed as unsigned integers, 
but, unlike FT_UINTn, where they're just unsigned integers of different sizes, FT_IPXNET is an IPX network number and 
FT_FRAMENUM is a frame number, so I'm not sure it makes sense to have, for example, a field that's sometimes an integer 
from the packet and sometimes a frame number.

> - FT_UINT64 and FT_EUI64

Same there - an EUI-64 is a specific type of value.

> - FT_BYTES, FT_UINT_BYTES, FT_AX25, FT_ETHER, FT_VINES, FT_OID and FT_REL_OID

And same here - I'd go for

        - FT_BYTES and FT_UINT_BYTES
        - FT_AX25 (this is an AX.25 address, and is unlikely to be anything else)
        - FT_ETHER (MAC-48, and unlikely to be anything else)
        - FT_VINES (Vines address)
        - FT_OID and FT_REL_OID (I'm guessing that a given OID could be represented either way; if not, maybe they 
should be separate)

> - FT_ABSOLUTE_TIME and FT_RELATIVE_TIME

Absolute times are time stamps; relative times are "n seconds from now"-type values.  I'd split them as well.

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