QoS-level aware Transmission Protocol (QTP) for virtual networks
draft-lan-nvo3-qtp-11
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2020-03-20
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INTERNET-DRAFT J. Lan
Intended Status: Proposed Standard D. Cheng
Expires: September 20, 2020 Y. Hu
G. Cheng
T. Duan
National Digital Switching System Engineering and Technological
Research Center, P.R.China
March 20, 2020
QoS-level aware Transmission Protocol (QTP) for virtual networks
draft-lan-nvo3-qtp-11
Abstract
This document provides a QoS-level aware Transmission Protocol (QTP)
for virtual networks.
Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with the
provisions of BCP 78 and BCP 79.
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Copyright and License Notice
Copyright (c) 2013 IETF Trust and the persons identified as the
document authors. All rights reserved.
Lan, et al. Expires September 20, 2020 [Page 1]
INTERNET DRAFT QoS-level aware Transmission Protocol March 20, 2020
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
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Table of Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 Motivation and background . . . . . . . . . . . . . . . . . 4
1.2 QTP-path . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 QTP Overview . . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Terminology . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Acronyms and Abbreviations . . . . . . . . . . . . . . . . 5
2 QTP Data Encapsulation Specification . . . . . . . . . . . . . 5
2.1 QTP Header Specification . . . . . . . . . . . . . . . . . 5
2.2 QTP Data Encapsulation . . . . . . . . . . . . . . . . . . 6
3 QTP Message Specification . . . . . . . . . . . . . . . . . . . 7
3.1 Destination Prefix and Node Identifiers . . . . . . . . . . 8
3.1.1 Destination Prefix (DestPrefix) . . . . . . . . . . . . 8
3.1.2 Node Identifiers . . . . . . . . . . . . . . . . . . . . 8
3.2 QTP PDU . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 TLV Encoding . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3.1 DestPrefix TLV . . . . . . . . . . . . . . . . . . . . . 11
3.3.2 PID TLV . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3.3 ToP TLV . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3.4 Status TLV . . . . . . . . . . . . . . . . . . . . . . . 13
3.4 QTP messages . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4.1 Notification Message . . . . . . . . . . . . . . . . . . 16
3.4.1.1 Notification Message Procedures . . . . . . . . . . 17
3.4.1.2 Events Signaled by Notification Messages . . . . . . 17
3.4.2 KeepAlive Message . . . . . . . . . . . . . . . . . . . 19
3.4.2.1 KeepAlive Message Procedures . . . . . . . . . . . . 19
3.4.3 PID Request Message . . . . . . . . . . . . . . . . . . 19
3.4.3.1 PID Request Message Procedures . . . . . . . . . . . 20
3.4.4 PID Response Message . . . . . . . . . . . . . . . . . . 21
3.4.4.1 PID Response Message Procedures . . . . . . . . . . 22
3.4.5 PID Release Message . . . . . . . . . . . . . . . . . . 22
3.4.5.1 PID Release Message Procedures . . . . . . . . . . . 23
3.5 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.5.1 Message Summary . . . . . . . . . . . . . . . . . . . . 24
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