The Internet of Things Meets Big

Data – Is Your Network Prepared?

Nick Sandoval

Field Application Engineer

Moxa’s Webinar

Agenda

Converged Networks • Internet of Things • Big Data

Trends in Industrial Networks

Best Practices • Edge to Core • Quality of Service

• Predictive

• Class Based • Multicast • Network Segmentation with Layer 3

Converged Networks

What is a converged network?

Network convergence is the

efficient coexistence of

multiple data types on a single

network

Offers convenience and

flexibility not possible with

separate infrastructures

Helps leverage economies of

scale

Nick’s House

Hot Topic: Industrial Internet of Things (IIoT)

7

Confidential

Confidential

Confidential

Confidential

Big Data

Poll Question

Do you currently build your network to account

for Internet of Things and/or Big Data? a) Not yet, but considering

b) Only looked at Internet of Things

c) Only looked at Big Data

d) Absolutely

e) No

Trend

Trends in the Industrial Space

Quad-Play Network

Industrial Networking Paradigm Shift

Legacy

Device Networking

• 1-to-N

• S-to-E Gateway

• Data, Command

Pervasive

Industrial Ethernet

• N-to-N

• Fieldbus-to-Ethernet

• Standalone Networks for Data, Control, Video, Voice

Converged

Automation Network

• N-to-N

• Native Eth. IP

• OneNET for Data, Control, Video, Voice

Control

Center/ Information Layer

Control Layer

Device Layer

Ground

WiFi Mobile phone

Card Reader

Sensor

Underground

Control & Monitoring Systems

Personnel Positioning Systems

Explosion-proof

cabinet

SCADA center Surveillance center Network management

CCTV

Saved

Saved Saved

Wireless Comm. Systems

Explosion-proof cabinet

Turbo Ring Turbo Chain

Best Practices

Core

Distribution

Edge

A Converged Edge-to-Core Industrial Ethernet Solution

DIN-Rail

Ethernet

Switch

Turbo Chain

Serial to

Ethernet Industrial Fieldbus

Gateway

Field

Networking

PLC Meter Meter Meter

Secure

Networking

Internet

VPN

Tunnel

PLC

Media

Converter Industrial

Wireless

1G

Turbo Ring

Rackmount

Ethernet

Switch

Industrial

PoE

Substation

Ethernet Switch

M12

Ethernet

Switch

10G Industrial

Core Switch

Industrial

Network

Management

Converged Edge-to-Core

Industrial Ethernet Solution

Quality of Service

Poll Question

Is Quality of Service a metric when you

design your network? a) Not really

b) Absolutely

c) The only metric I use is a ruler

What is Quality of Service?

Quality of service (QoS) is the overall

performance of a of the network, above all the

perceived performance seen by the users.

Determinism

a deterministic system is a system in which no

randomness is involved in the development of

future states of the system. -Wikipedia

Industrial Application Require It

Determinism is highly important

Many Industrial Protocols like

Ethernet/IP require it.

Network failure in these environments

can be very costly

QoS Parameters

Delay

Jitter

Reliability

QoS Methodologies

Predictive Quality • Requires Over-provisioning

Flow-Based Quality • Flow - A stream of packets or frames

with the same quality requirements is a flow

• IntServ

Class-Based Quality • Packets are clustered into groups

• Node based prioritization

• DiffServ

Predictive Quality

No congestion, all packets get through

Requires the use of Over-provisioning

Predictive Quality

Why use a QoS protocol?

Network applications communicate thru network

Different network applications have different network needs

- File transfer need large network bandwidth but not real time

- VoIP bandwidth is small but need real time & small Jitter

QOS prioritize frames to ensure important applications data get

process earlier

Collected Data

Mgt. Message

Control

Message

Low Priority

Top Priority High Priority Low Priority

Data collected

Mgt. Message

Control

Message

Top Priority

High Priority

Class-Based Quality

Node level

Groups data into groups

Pro: •Highly scalable •Easy to implement

Con •No standardization •Many different protocols

Multicast

Poll Question

Do you use Ethernet/IP, video, or voice in

your network? a) Yes

b) Not yet, but plan on it

c) Only Ethernet/IP

d) No immediate plans

Why Multicast?

• Used when sending same data to multiple receivers

• Better bandwidth utilization

• Less host/router processing

Multicast Advantages • Enhanced efficiency: Controls network traffic and reduces server

and CPU loads

• Optimized performance: Eliminates traffic redundancy

• Distributed applications: Makes multipoint applications possible

IGMP Snooping Concept

What is Multicast Filtering? • Ensures certain groups receive multicast traffic

• Network devices forward multicast traffic to ports that are registered

Unicast:

One to one

A

B F E D C

Multicast:

One to several

B F E D C

A

Broadcast

One to all

B F E D C

A

Multicasting

IGMP is the most popular multicast

protocol

End devices must support multicast

protocol

The network infrastructure needs to

support IGMP snooping

Network Segmentation with

Layer 3

Layer 3

OSI Network Model

Network Layer

Layer 3 Switches

Confidential

Routers

Difference Between a Layer 3 Switch

and Router

Layer 3 Switch Router

Routing Performance Extremely Fast Slower

Port Density Much Higher Limited

Network Routing

Capability

VLAN Based Interface Based

(Exception is EDR-810)

Virtual Private Network

(VPN)

Not capable Fully capable

Network Address

Translation (NAT)

Not capable

Fully capable

Firewall Not capable Fully capable

DHCP Server Limited More capable

When is Layer 3 Devices Used?

Benefits

Improved performance in large networks

Increased security

Better control of traffic

Allow for VLAN routing and network segments

Large installations

Need for segregation or/and isolation

Need for security

NAT is needed

Interfacing with WAN

Ideal Scenario

Broadcast In the Layer 2 Network

Computer

Hub/Switch Hub/Switch

Server

ComputerComputer

ComputerComputer

Computer

Computer

ComputerServer

Computer ComputerComputer Computer Server

Hub/SwitchHub/Switch

If everyone send a broadcast

everyone will receive 14 packets

There are 15 devices

Broadcast Domain

Larger Broadcast Domain

Computer

Computer

Hub/Switch

Hub/Switch

Hub/Switch Hub/Switch

Server

ComputerComputer

Computer

Computer

Computer

Computer

ComputerServer

Computer ComputerComputer Computer Server

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

Computer

If everyone send 100 broadcast packets

everyone will receive 99900 packets

If there are 1000 devices

Networking will becomes very busy

Divide Broadcast Domain

Broadcast

Domain A

Broadcast

Domain B

Broadcast

Domain C

Router/Layer 3 SwitchRouter/Layer 3 Switch

Broadcast

Key Takeaways

Industrial networks are moving towards

Converged networks that require a lot of

bandwidth

Setting up Quality of Service Scheme in a

Network is crucial

Multicast is important in environments where

there is a lot of consumers of a producer

Layer 3 is important in large networks to

improve network performance and security

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