On the subject of NFS/RDMA, what is the IB ServiceID space that is used?
If I recall correctly, I have seen simply the value 2049 (i.e. the
standard TCP/UDP port number) used in some implementations (i.e. 00 00
00 00 00 00 20 49). Is there a mapping onto an IB ServiceID defined?
Thanks,
Jay
At 12:19 PM 6/24/2005, Roland Dreier wrote:
It seems far preferable to me to just define the wire protocol of
NFS/RDMA for IB such that a client passes its IP address as part of
the connection request. This scheme was used for SDP to avoid
precisely the complications that we're discussing now.
But that's totally and completely insecure. The goal of /etc/exports
is to place at least part of the client authentication in the network
rather than the supplied credentials. NFS has quite enough of a
history with AUTH_SYS to prove the issues there. Some of the
exports options (e.g. the *_squash ones) are specifically because
of this.
I don't care about ATS either, by the way. I'm looking for an
interoperable alternative.
Tom.
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