Name: draft-carrier-rddp-rnic-interop-00
Title: RNIC Interoperability
State: Active
Authors: John Carrier, Jim Pinkerton
Group: Individual Submissions (none)
Date: 2004-11-22
This document describes a mechanism for enabling RDMA Network Interface
Cards (RNICs) that implement both the IETF and RDMAC versions of the DDP
and RDMAP protocols to interoperate with legacy RNICs that are based on the
RDMAC version of the protocols. The proposed scheme uses MPA Request/Reply
Frames to negotiate the protocol version as well as MPA marker and MPA CRC.
A ULP or other supporting entity must perform this negotiation on behalf of
the RDMAC RNIC because RDMAC MPA does not define an MPA connection scheme
using MPA Request/Reply frames. This draft also makes specific
recommendations for minor changes to the IETF MPA, DDP, and RDMAP internet
drafts to aid in interoperability.
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