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

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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)

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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

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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

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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