Network File System (NFS) Upper Layer Binding To RPC-Over-RDMA Version 2
draft-ietf-nfsv4-nfs-ulb-v2-00
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Network File System Version 4 C. Lever
Internet-Draft Oracle
Intended status: Standards Track November 17, 2019
Expires: May 20, 2020
Network File System (NFS) Upper Layer Binding To RPC-Over-RDMA Version 2
draft-ietf-nfsv4-nfs-ulb-v2-00
Abstract
This document specifies Upper Layer Bindings of Network File System
(NFS) protocol versions to RPC-over-RDMA version 2.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on May 20, 2020.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
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described in the Simplified BSD License.
This document may contain material from IETF Documents or IETF
Contributions published or made publicly available before November
Lever Expires May 20, 2020 [Page 1]
Internet-Draft NFS on RPC-Over-RDMA V2 November 2019
10, 2008. The person(s) controlling the copyright in some of this
material may not have granted the IETF Trust the right to allow
modifications of such material outside the IETF Standards Process.
Without obtaining an adequate license from the person(s) controlling
the copyright in such materials, this document may not be modified
outside the IETF Standards Process, and derivative works of it may
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it for publication as an RFC or to translate it into languages other
than English.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 3
3. Reply Size Estimation . . . . . . . . . . . . . . . . . . . . 3
4. Upper Layer Binding for NFS Versions 2 and 3 . . . . . . . . 3
4.1. Reply Size Estimation . . . . . . . . . . . . . . . . . . 4
4.2. RPC Binding Considerations . . . . . . . . . . . . . . . 4
5. Upper Layer Bindings for NFS Version 2 and 3 Auxiliary
Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5.1. MOUNT, NLM, and NSM Protocols . . . . . . . . . . . . . . 5
5.2. NFSACL Protocol . . . . . . . . . . . . . . . . . . . . . 5
6. Upper Layer Binding For NFS Version 4 . . . . . . . . . . . . 5
6.1. DDP-Eligibility . . . . . . . . . . . . . . . . . . . . . 5
6.2. Reply Size Estimation . . . . . . . . . . . . . . . . . . 6
6.3. RPC Binding Considerations . . . . . . . . . . . . . . . 7
6.4. NFS COMPOUND Requests . . . . . . . . . . . . . . . . . . 7
6.5. NFS Callback Requests . . . . . . . . . . . . . . . . . . 9
6.6. Session-Related Considerations . . . . . . . . . . . . . 10
6.7. Transport Considerations . . . . . . . . . . . . . . . . 11
7. Extending NFS Upper Layer Bindings . . . . . . . . . . . . . 13
8. Security Considerations . . . . . . . . . . . . . . . . . . . 13
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 13
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 13
10.1. Normative References . . . . . . . . . . . . . . . . . . 14
10.2. Informative References . . . . . . . . . . . . . . . . . 15
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 15
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 15
1. Introduction
The RPC-over-RDMA version 2 transport may employ direct data
placement to convey data payloads associated with RPC transactions
[I-D.cel-nfsv4-rpcrdma-version-two]. To enable successful
interoperation, RPC client and server implementations using RPC-over-
RDMA version 2 must agree which XDR data items and RPC procedures are
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