Re: [Tsvwg] problem with crc32

Asish:

The rfc2960 bis will be withdrawn as soon as it expires. In place
of this we have moved to a

1) Implementors guide

2) CRC checksum change document

and

3) seperate IPv6 scoping for SCTP document.

With the idea that down the road when we are ready to move
to draft standard we will merge these three together.

As far as namrata's question... for adler32 csum your
packet would come up with a checksum of
0x00000028

for CRC-32 I would have to write code to give you the answer...
which I don't have time for right at the moment :<

R

Asish Thomas Punnoose wrote:
> 
> Hello Namrata,
> 
> There is currently a draft in the tsvwg draft-ietf-tsvwg-rfc2960-bis-00.txt
> which has changes incorporated from past bakeoffs and mailing list
> discussions.
> 
> The section 6.8 of the draft has Fletcher-16 Checksum Calculation instead
> of the original alder32 Checksum in RFC 2960.
> 
> Now the qus is, which algorithm to use for the checksum calculations. Would
> anyone know which algo is been used in the various implementation in the
> bakeoff.
> 
> regards
> Asish
> 
> -----Original Message-----
> From: tsvwg-admin@ietf.org [mailto:tsvwg-admin@ietf.org]On Behalf Of
> namrata mahindrakar
> Sent: Friday, August 24, 2001 10:58 AM
> To: tsvwg@ietf.org
> Subject: [Tsvwg] problem with crc32
> 
> hi,
> I am using the alder32 algorithum to calculate the CRC the  out that
> should be obtained for char
> pkt_data[44]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
>                    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
>                    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
>                    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
>                    0x00,0x00,0x00,0x28}
> 
> how do u use this algorithum.(alder32)
> 
> How is it better than crc32 lookuptable.
> 
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-- 
Randall R. Stewart
randall@stewart.chicago.il.us 815-342-5222 (cell phone)

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