From: Huang Xiong <huangxiong@uit.com.cn>
Subject: Re: How to specify sctp protocol?
Date: Tue, 30 Oct 2007 09:58:15 +0800
Message-ID: <200710300958.15823.huangxiong@uit.com.cn>
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Cc: nfs@lists.sourceforge.net
To: "Iyer, Rahul" <Rahul.Iyer@netapp.com>
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Hi Rahul,

Thanks for your kindly comment. 

NFSv4 supports TCP and UDP, does this implementation affect the relative  
operations(mount/read/write) on NFS share exported from underlying GFS 
filesystem, which indicates it uses SCTP only?

Or if I want to use NFS on GFS smoothly, need I add TCP support to GFS?

Regards,
Phillip


在 星期一 29 十月 2007 18:12，Iyer, Rahul 写道：
> No, I meant the Linux implementation doesn't support it yet. It supports
> TCP and UDP transports over IPv4. IPv6 is being added. -Rahul
>
> > -----Original Message-----
> > From: Huang Xiong [mailto:huangxiong@uit.com.cn]
> > Sent: Monday, October 29, 2007 3:39 PM
> > To: Iyer, Rahul
> > Cc: nfs@lists.sourceforge.net
> > Subject: Re: [NFS] How to specify sctp protocol?
> >
> > Perhaps I understand wrong. Please see below:
> >
> >
> > From "http://www.ietf.org/rfc/rfc3530.txt"
> >
> > 3.1.  Ports and Transports
> >
> >    Historically, NFS version 2 and version 3 servers have resided on
> >    port 2049.  The registered port 2049 [RFC3232] for the NFS protocol
> >    should be the default configuration.  Using the registered port for
> >    NFS services means the NFS client will not need to use the RPC
> >    binding protocols as described in [RFC1833]; this will allow NFS to
> >    transit firewalls.
> >
> >    Where an NFS version 4 implementation supports operation
> > over the IP
> >    network protocol, the supported transports between NFS and
> > IP MUST be
> >    among the IETF-approved congestion control transport
> > protocols, which
> >    include TCP and SCTP.  To enhance the possibilities for
> >    interoperability, an NFS version 4 implementation MUST support
> >    operation over the TCP transport protocol, at least until such time
> >    as a standards track RFC revises this requirement to use a
> > different
> >    IETF-approved congestion control transport protocol.
> >
> >
> >
> > 在 星期一 29 十月 2007 17:59，Iyer, Rahul 写道：
> >
> > > I don't believe you can. I don't think NFS over SCTP is
> >
> > supported yet.
> >
> > > -Rahul
> > >
> > > > -----Original Message-----
> > > > From: Huang Xiong [mailto:huangxiong@uit.com.cn]
> > > > Sent: Monday, October 29, 2007 3:16 PM
> > > > To: nfs@lists.sourceforge.net
> > > > Subject: [NFS] How to specify sctp protocol?
> > > >
> > > > Hello folks,
> > > >
> > > > As NFSv4 supports SCTP protocol,  how to specify this protocol in
> > > > application?
> > > > or need to add some option appened with mount the NFS shares?
> > > >
> > > > My underlying filesystem is GFS, which uses SCTP for cluster
> > > > internode communication. I wonder that I have to specify the SCTP
> > > > option when I try to mount NFS share based on GFS.
> > > >
> > > > I've been trying to find some useful information but with
> >
> > no success.
> >
> > > > Anyone having an idea or experienced the same problem?
> > > > Maybe I can provide more useful information on this.
> > > >
> > > > Thanks in advance.
> > > > Phillip
> > > >
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