Page 1362 - 5G Basics - Core Network Aspects

3 Signalling aspects

NAT Cache
LBS NAT
Wireless
LTE EPC
IPS IDS/ CDN DPI WCDMA access
network
Mobile evices d
IDC 1 IDC 2 DPI Firewall
Mobile etworkn
Internet NAT Cache Fixed etworkn

Core Wired
routers access
network
PC/IPTV et-tops
DPI Firewall Q Suppl.67(15)_F6-2

Figure 6-2 – Middleboxes in the fixed and mobile networks

In order to provide service chaining, connection establishment and fault monitoring, the SDN environment is
required to support unified middlebox management to efficiently control and interconnect between network
switching components and the middlebox.
It is required to:
– Support middlebox monitoring for checking their availability, resource status, etc.;

– Get the topology information of all the middlebox connectivity;
– Support middlebox control for establishing middlebox services.

6.3.5 Orchestration function for white-box management
Network function virtualization (NFV) [b-ETSI NFV] is a similar concept in nature to SDN in that both aim to
transform network management from the hardware layer to the software layer. In addition, NFV is a
technology that utilizes virtualization technologies to manage network functions via software as opposed to
having to rely on proprietary hardware to handle these functions.
Figure 6-3 shows one possible scenario for white-box deployment in the fixed and mobile networks.

NAT Cache
White-box
LTE EPC Wireless
Load balancer WCDMA access
IDS DPI network Mobile
devices
Session border
Firewall controller IDC 1 IDC 2 DPI Firewall
Mobile etworkn
Fixed etworkn
ad insertion WAN accelerator Internet NAT Cache
QoE monitor Wired
Core access
Carrier grade- routers network
NAT Transcoder
DDoS protection PC/IPTV et-tops
DPI Firewall Q Suppl.67(15)_F6-3

Figure 6-3 – White-boxes in the fixed and mobile networks

In order to provide installation, reconfiguration and customization regarding the SDN environment, it is
needed to support unified white-box management to efficiently control and interconnect between SDN
components and white-boxes.

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