RDMA/IP Mini-BOF STORM WG, IETF-88 Vancouver Canada 1300-1500 Thursday Nov 7, Regency B Co-Chairs: David Black, Tom Talpey Blue Sheets, Introduction and Agenda Bashing - David Black - 5 min RDMA Ecosystem - Tom Talpey - 20 min What is RDMA Previous IETF work Upper layers using RDMA iSER, NFS/RDMA, SMB3, SCSI RDMA Protocol (SRP), High Performance/Scientific/Financial Computing, Experimental RDMA requirements of each RDMA layers iWARP, InfiniBand, RDMA over Converged Ethernet (RoCE) Lower layers used by RDMA TCP, SCTP, Ethernet L2, Infiniband RDMA trends and development Virtualization, encapsulation Fabrics, infrastructure, bandwidths iWARP trends - Brian Hausauer - 15 min+discussion Protocol status Extensions status Work in Progress RoCE trends - Diego Crupnicoff - 15 min+discussion Protocol status Related standards org(s) Work in Progress Fabric trends - Pat Thaler - 10 min+discussion RoCE dependencies from (Ethernet) fabric Data Center Bridging (DCB) including Priority Flow Control (PFC) General discussion - 1 hour, also included above Future work within IETF Related work within IETF Relationship to external standards org(s) Protocol alternatives, e.g. iWARP, RoCE Identification of areas to investigate Wrapup and next step(s) ----- Additional background: The STORM (STORage Maintenance) working group's responsibilities include maintenance and development of various IETF RDMA specifications, and interest and activity is rising in these. Many RDMA device and RDMA-aware upper layer implementations already use IETF-standard protocols, and others are moving toward using IP networks, by defining new IP-family layering. Use of the iWARP family is already in place for three broadly implemented storage protocols (iSCSI, NFS, SMB), as well as for High Performance Computing. The Infiniband Trade Association, which defines the InfiniBand and RDMA over Converged Ethernet (RoCE) transports, is also addressing these. Additional extensions to the IETF RDMA RFCs are in progress in the STORM working group. A BOF is scheduled for the upcoming meeting to review the status of the various RDMA-related efforts, and the requirements of upper layers. With these at front of mind, a discussion will be held to determine interest and desire to proceed with next steps in the IETF, and coordination with external standards efforts. In addition to determining possible future IETF work, the discussion will explore the role IETF may play in external specifications. Example RDMA-capable Transports: iWARP (RFC5040-5044) and draft-ietf-storm-rdmap-ext RoCE (www.infinibandta.org) InfiniBand (www.infinibandta.org) Example Upper layers using RDMA: NFS/RDMA (RFC5666-5667) iSER (RFC5046) and draft-ietf-storm-iser SMB3 and SMB Direct (MS-SMB2 and MS-SMBD http://msdn.microsoft.com/en-us/library/jj712081.aspx) MPI (http://en.wikipedia.org/wiki/Message_Passing_Interface) Additional implementations/use: iWARP extensions (continued) Routable RoCE Shared memory (draft-fox-tcpm-shared-memory-rdma) Further use by storage upper layers Applicability to new storage technologies e.g. flash, nonvolatile memory, etc.