Re: Small change to QoS NSLP INFO_SPEC

Roland Bless <[email protected]> Mon, 25 Jan 2010 23:14:45 +0100
Newsgroups gmane.ietf.nsis
Organization Institute of Telematics, Karlsruhe Institute of Technology (KIT)
Message-ID <[email protected]>
Hi Jukka and all,

Jukka Manner wrote:
> While answering IANA's questions to the QoS NSLP, there is one item that
> would warrant some discussion:
> 
> The Error code is a 16-bit field (65536 values), while we only have
> values up to around 10 per Error Class. The NATFW NSLP only uses an
> 8-bit code space.

> Proposal: change the field to 8-bits and leave 8 bits reserved for
> future use (NATFW NSLP does the same actually, 4+4bits).

> Opinions?

Sounds ok to me, so error class remains 4 bits and error code
is 8 bit. The header will then look like this?

    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |    Reserved   |  Error Code   |E-Class|ESI Typ|   ESI-Length  |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


Regards,
 Roland