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  • CHARISMA – D3.3 – v2.0 Page 1 of 43

    Converged Heterogeneous Advanced 5G Cloud-RAN Architecture for

    Intelligent and Secure Media Access

    Project no. 671704

    Research and Innovation Action

    Co-funded by the Horizon 2020 Framework Programme of the European Union

    Call identifier: H2020-ICT-2014-1

    Topic: ICT-14-2014 - Advanced 5G Network Infrastructure for the Future Internet

    Start date of project: July 1st, 2015

    Deliverable D3.3

    Initial Content Caching and Traffic Handling at SW

    Regex Integration

    Due date: 30/06/2016

    Submission date: 15/07/2016

    Deliverable leader: Yaning Liu

    Dissemination Level PU: Public

    PP: Restricted to other programme participants (including the Commission Services)

    RE: Restricted to a group specified by the consortium (including the Commission Services)

    CO: Confidential, only for members of the consortium (including the Commission Services)

    Ref. Ares(2016)3477231 - 15/07/2016

  • CHARISMA – D3.3 – v2.0 Page 2 of 43

    List of Contributors

    Participant Short Name Contributor

    JCP-Connect JCPC Yaning LIU, Matthias Sander Frigau

    Demokritos NCSRD NCSRD Eleni TROUVA, Yanos Angelopoulos

    Intracom Telecom ICOM Konstantinos KATSAROS

    Fundació i2CAT I2CAT Shuaib SIDDIQUI, Eduard ESCALONA

    University of Essex UESSEX Michael PARKER (Internal Reviewer)

  • CHARISMA – D3.3 – v2.0 Page 3 of 43

    Table of Contents

    List of Contributors ................................................................................................................ 2

    1. Introduction ...................................................................................................................... 6

    1.1. Background ........................................................................................................................................ 6 1.1.1. State-of-the-art .......................................................................................................................... 6 1.1.2. Gap analysis ............................................................................................................................... 8

    1.2. Design requirements ........................................................................................................................10

    2. CHARISMA Content Delivery System ........................................................................12

    2.1. Objectives and System Overview .....................................................................................................12

    2.2. CHARISMA distributed caching framework .....................................................................................16 2.2.1. Identification of cache location ...............................................................................................16 2.2.2. Virtualized cache as a VNF .......................................................................................................16 2.2.3. Virtualized cache controller as a VNF ......................................................................................19 2.2.4. VNFD Descriptors .....................................................................................................................21

    2.3. CHARISMA traffic handling ..............................................................................................................22 2.3.1. Problem statement ..................................................................................................................22 2.3.2. The CHARISMA approach .........................................................................................................24

    2.4. Security issues related to CHARISMA content delivery system ........................................................26

    2.5. ICN based content delivery in CHARISMA ........................................................................................27 2.5.1. Latency benefit ........................................................................................................................28 2.5.2. Mobility benefit .......................................................................................................................28

    3. Interface design of CHARISMA cache system .........................................................29

    3.1. Overview and requirements of interface design ..............................................................................29

    3.2. Communication between cache nodes ............................................................................................29

    3.3. Interfaces between cache nodes and cache controller ....................................................................31

    3.4. Interfaces to VNF manager ..............................................................................................................31

    4. Overview of primitive implementation .......................................................................33

    4.1. Cache Nodes and Cache Controller ..................................................................................................33

    4.2. VNF Descriptor .................................................................................................................................35

    5. Conclusions ..................................................................................................................39

    References ............................................................................................................................40

    Acronyms ..............................................................................................................................42

  • CHARISMA – D3.3 – v2.0 Page 4 of 43

    List of Figures

    Figure 2-1: CHARISMA four converged aggregation levels (CALs) architecture .............................................. 13 Figure 2-2: CHARISMA Caching solution with management ........................................................................... 14 Figure 2-3: Call flows for the management of cache slice and cache/pre-fetch ............................................. 15 Figure 2-4: CHARISMA Cache Node Software Components ............................................................................ 17 Figure 2-5: Content Delivery Procedure Initiated by User Equipment ............................................................ 18 Figure 2-6: Netconf Architecture ..................................................................................................................... 20 Figure 2-7: CHARISMA Content Caching Architecture .................................................................................... 20 Figure 2-8: CHARISMA Prefetching Procedure Controlled by CC .................................................................... 21 Figure 2-9: Delay components in the case of v-Caching ................................................................................. 23 Figure 2-10: CHARISMA solution for cacheable traffic identification and handling (managed by the VNO) .. 26 Figure 3-1: Example operation of vCache peering in multi-tenancy scenarios. A cache miss in the vCache of

    VNO 1 results in the redirection of the content request to the vCache instance of the co-located VNO 2. ............................................................................................................................................................. 30

    Figure 3-2: CHARISMA solution for cacheable traffic identification and handling (managed by the infrastructure operator).......................................................................................................................... 32

    Figure 4-1: The MoBcache prototype .............................................................................................................. 33 Figure 4-2: Diagram of the logical architecture ............................................................................................... 34

  • CHARISMA – D3.3 – v2.0 Page 5 of 43

    Executive Summary

    This deliverable D3.3 “initial Content Caching and Traffic Handling at SW Regex Integration” provides the

    initial results arising out of the Task 3.4 “Content Caching and Traffic Handling at the RAN node” in Work

    Package 3 during the first year of the CHARISMA project. The purpose of Task 3.4 is to provide a CHARISMA

    content delivery service featuring the key CHARISMA performance characteristics of: low latency, open

    access and security. This deliverable’s main aim is to describe in detail the design of the CHARISMA content

    delivery system that has been developed in T3.4. As part of that design process we have investigated how an

    information-centric networking (ICN) approach allows the CHARISMA content delivery solution to benefit

    from the low latency and mobility of ICN technology.

    We describe how content delivery solutions in current networks operate, with an analysis of the gaps in these

    current technology solutions, in terms of their inability to support virtualized caching solutions and caching-

    related traffic handling solutions.

    The distributed caching locations in the CHARISMA network have been identified with each of the different

    Converged Aggregation Levels (CALs) of the CHARISMA architecture. The advanced CHARISMA MoBcache

    system has been designed

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