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List:       sip-implementors
Subject:    Re: [Sip-implementors] query reagrding the branch in VIA
From:       "Michael Procter" <michael.procter () citel ! com>
Date:       2007-12-13 15:42:21
Message-ID: 0D4E483A0E6E0A46861409E5D6C2011CFEC8D7 () sea02-mxc01 ! citel ! com
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The branch parameter should be compared as case-insensitive.  Even the
mixed-case cookie should be compared as case-insensitive.  The parameter
name ('branch' or 'BRANCH' as you have it in your question) should also
be compared as case-insensitive.

For more details, you may like to examine this:
http://bugs.sipit.net/show_bug.cgi?id=661

Regards,

Michael

> -----Original Message-----
> From: sip-implementors-bounces@lists.cs.columbia.edu [mailto:sip-
> implementors-bounces@lists.cs.columbia.edu] On Behalf Of Manjunath
> Warad
> Sent: 13 December 2007 15:01
> To: 'kavitha menneni'; sip-implementors@lists.cs.columbia.edu
> Subject: Re: [Sip-implementors] query reagrding the branch in VIA
> 
> AFAIK, magic cookie is case sensitive and the remaining part is case
> insensitive because as per ABNF of Via, via-branch is token, so token
> is
> case insensitive but the magic cookie ie., "z9hG4bK" is quoted string
> which
> is case sensitive.
> 
> regards,
> Manju
> 
> 
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> -----Original Message-----
> From: sip-implementors-bounces@lists.cs.columbia.edu
> [mailto:sip-implementors-bounces@lists.cs.columbia.edu] On Behalf Of
> kavitha
> menneni
> Sent: Thursday, December 13, 2007 8:12 PM
> To: sip-implementors@lists.cs.columbia.edu
> Subject: [Sip-implementors] query reagrding the branch in VIA
> 
> Hi,
>   I have a query regarding the branch name in 200OK of VIA.
> 
> I have sent an INVITE with branch name in VIA as
> branch=z9hG4bK558246601-25646 and received a 200OK with branch  name
> in VIA
> as BRANCH =z9hG4bK558246601-25646 then do we need to drop this 200OK
> or we
> can accept the 200OK.Is this name a case sensitive? RFC 3261 saya it
> is case
> insensitive in the following section but it is a mismatch here how we
> should
> handle this case.
> 
> In section 7.3.1 of RFC3261:-
>    "When comparing header fields, field names are always case-
>    insensitive.  Unless otherwise stated in the definition of a
>    particular header field, field values, parameter names, and
> parameter
>    values are case-insensitive.  Tokens are always case-insensitive."
> 
> Thanks & Regards,
> Kavitha
> 
> 
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