[openib-general] IPoIB Loading and Starting
Roland Dreier
roland at topspin.com
Tue Sep 28 20:00:18 PDT 2004
Michael> The IBTA defined the specifications to establish standard
Michael> wire protocols to discover services without having to
Michael> track all potential services. The IETF does not address
Michael> how P_Keys are managed only that the IP over IB component
Michael> must follow a set of semantics / operations to enable IP
Michael> communication; all IB-specific management issues are
Michael> outside the scope of the drafts.
Michael> As another person put it - embrace and extend. The
Michael> approach being advocated is something that will be
Michael> interoperable and provides a solution that can be easily
Michael> incorporated into all IP over IB implementations. It
Michael> also clarifies the ambiguous IB - admin management
Michael> interactions for IP communications.
Until an IPoIB service is mandated somewhere, IPoIB implementations
need to work even on subnets where the service is not registered.
Which means a bit of extra complexity to handle both the case where
the service doesn't exist because the subnet has not implemented the
management scheme and the case where the service doesn't exist because
the administrator doesn't want to configure IPoIB for a given partition.
In any case -- my plate is quite full at the moment. Any code to
implement better IPoIB management will be welcomed but I won't be able
to right it for quite some time.
- Roland
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