Internet Research Task Force D. Chen Internet-Draft Z. Li Intended status: Informational China Mobile Expires: 9 January 2025 8 July 2024 High speed data express in IP: Concept, Reference Architecture and Technologies draft-chen-tsvwg-high-speed-data-express-00 Abstract With the rapid development of AI technology, intelligent computing and super-computing services, the demand for wide-area transmission of massive data is increasing. This paper makes full use of the advantages of IP network, such as statistical reuse and elastic supply, and proposes a reference architecture of high elasticity and high throughput data express based on IP network. In order to support differentiated data express services and create task-type data express services, the "one low and three high" technical system is proposed. Requirements Language The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 [RFC2119]. 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 9 January 2025. Chen & Li Expires 9 January 2025 [Page 1] Internet-Draft Transport and Services Working Group July 2024 Copyright Notice Copyright (c) 2024 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 (https://trustee.ietf.org/ license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Reference Architecture . . . . . . . . . . . . . . . . . . . 3 3. "One low, three high" technology system . . . . . . . . . . . 6 4. Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5. Security Considerations . . . . . . . . . . . . . . . . . . . 6 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 6 7. Normative References . . . . . . . . . . . . . . . . . . . . 6 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 6 1. Introduction With the rapid development of AI technology, intelligent computing, and super-computing services, the demand for wide-area transmission of massive data is increasing. How to transfer a large amount of data quickly, efficiently and conveniently has become an important problem that needs to be solved in the development of communication networks. With the network bandwidth from 10G to 25G, 100G, 200G and even 400G, bandwidth is not the bottleneck of data transmission, the key to data transmission is how to make full use of large bandwidth to achieve efficient throughput. In most cases, the effective throughput is less than the throughput, which in turn is less than the bandwidth. Bandwidth refers to the number of bits that can be transmitted per second on the link, which depends on the link clock rate and channel coding, also known as line speed (network device transmission capacity). Throughput refers to the actual amount of data transmitted on the bandwidth (terminal device transmission capacity). Goodput refers to the throughput that truly meets service requirements, excluding invalid packets such as retransmission and discarding (service data transmission capability).. Chen & Li Expires 9 January 2025 [Page 2] Internet-Draft Transport and Services Working Group July 2024 In-depth analysis shows that the data transmission throughput performance is mainly affected by five factors: transmission distance, network packet loss rate, effective data length , sending window and the impact factor. As the transmission distance increases, RTT (round trip delay) increases. In reliable transmission mode, the reply time of ACK acknowledgement messages becomes longer, and the sending sliding window cannot be adjusted in time. Network packet loss rate will affect the rate adjustment of congestion control algorithm, and increase the tail delay of data transmission. Effective data length refers to the effective data length of the packet header removed, which can be regarded as MSS. Increasing MSS will help improve throughput. The sending window affects the duration of continuous data sending. If the window is too small, data will be sent before the ACK reply is completed, and sending will be paused. The impact factor F is a comprehensive parameter, such as the CPU frequency, PCIE rate, disk I/O rate, and bandwidth that affect the packet processing rate, 0 | Operation Platform | Delivery | | +---------+----------+ | +----------+-----------+ | | +---------------+ Network Controller +---------+ | | | | | +-----------+----------+ | | | | | | | +-------+---------------------------+--------------------+----------+ | | | +-----------+ +-----------+ | | |Data Source| | Super | | | | Memory | +------+ Computing | | | | card/disk | Wide Area | | Center | | | +-----+-----+ +------+Interconnection +--+--+ +-----------+ | | | |Cloud +----------------+Cloud| | | | | PE | | PE | | | | +---+--+ +--+--+ +-----------+ | | +-----v------+ | | | General | | | |Data Express| | +------+ Computing | | | | Station +--------+ | Center | | | +------------+ +-----------+ | | | | Infrastructure | +-------------------------------------------------------------------+ Infrastructure Chen & Li Expires 9 January 2025 [Page 4] Internet-Draft Transport and Services Working Group July 2024 - Data Express can use the existing network infrastructure to provide data transmission services for customers, and can access different data source and data consumption end through SPN, PON, optical fiber direct connection and other means according to the situation of live network resources, so as to achieve dynamic scheduling and optimization of network resources and ensure the quality and efficiency of data transmission. SPN is the recommended access mode for data express because of its large access bandwidth, elastic bandwidth configuration, and wide coverage. Network Controller Network controllers include SPN and other network controllers in different fields, which complete the network configuration according to the requirements of the service platform, and realize the whole process automation and intelligent opening of the data express service. The main functions include: - Network configuration: Automatically or manually configure parameters such as network topology, routes, and security policies based on network requirements and scenarios to achieve flexibility and customization. - Information collection: Collects and analyzes network performance, quality, and security indicators in real time to optimize and improve data express services. - Network monitoring: Monitors the network in real time to detect and handle anomalies such as network faults, attacks, and leaks, ensuring data transmission security and stability. Operation Platform - Operation platform refers to the online platform that provides users with one-stop data express service management and monitoring functions, and provides users with business ordering, opening, monitoring, billing and other functions. The operation platform can be accessed through the web or mobile terminal to realize the visualization and intelligence of the whole process of data express business. The main functions include: o Service order: Users can order data express services online on the operation platform, and select parameters such as data source, destination, transmission mode, and transmission time to generate service orders. Chen & Li Expires 9 January 2025 [Page 5] Internet-Draft Transport and Services Working Group July 2024 o Enabling the service: Users can enable the online data express service on the operation platform. Based on the order information, users can automatically or manually configure data sources, destinations, and network resources to start data transfer tasks. o Service monitoring: Users can monitor data express services online on the operation platform and view data transfer progress, status, rate, and quality in real time to detect and handle anomalies in a timely manner. o Service charging: Users can charge online data express services on the operating platform, and generate and pay bills based on preset charging rules based on data transfer volume, duration, and bandwidth. 3. "One low, three high" technology system TBD 4. Summary TBD 5. Security Considerations TBD. 6. IANA Considerations This document has no requests to IANA. 7. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . Authors' Addresses Danyang Chen China Mobile Beijing 100053 China Email: chendanyang@chinamobile.com Chen & Li Expires 9 January 2025 [Page 6] Internet-Draft Transport and Services Working Group July 2024 Zhiqiang Li China Mobile Beijing 100053 China Email: lizhiqiang@chinamobile.com Chen & Li Expires 9 January 2025 [Page 7]