Mesh Network

Mesh Network

General

A mesh network (WMN), also called IEEE 802.11s or meshed network, connect different devices within a network structure. Mesh describes a network topology (structure) in which each network node is connected to another and data is constantly exchanged with each other. The topology of the mesh network can easily be transferred to a wireless (WiFi) network.

A wifi mesh network consists of several access points (AP) and meshpoints that continuously communicate with each other and at the same time with the integrated network devices. Usually routers in the 2.4 and 5 GHZ frequency range. The new mesh devices also use a third radio module, with which they mesh together. As a result, the signals are not attenuated, but passed on in full. Unlike repeaters, the mesh units not only reinforce an existing WLAN network, but also generate the same WLAN signal themselves.

Advantages

LAN Bridging
Reliability
Easy expandability
Self-healing
Great coverage

Disadvantages

High effort & costs to build up mesh network topology
High energy consumption to guarantee permanent functionality

Configuartion

Netmodule devices support mesh functionality since software version 4.2.0.100

Network Setup

The following schematic and configuration guideline show a typically use case of mesh technologie. The diagram shows a warehouse with several heavy-load stacker vehicales. The warehouse area has a regulated traffic conception, which makes it easier to arrange and define the mesh network area. All vehicales are equiped with Netmodule Netmodule NG800 units and acting as meshpoint, interact with each other and form the mesh network. As enddevice all stackers are also equiped with scanners to capture the loaded goods. As soon as any data has been generated, the mesh functionality will automatically find the shortest path through the network to the endpoint(cloud). [This use case is fictitious, but might be a regualar use case.]

Meshpoint

1. Define operation mode

Choose “mesh point” as prefer operation Mode
Choose prefered 2.4GHz chanel (in this example Chanel 6)

2. Define MESH ID

Choose a name as MESH ID. (in this example “NG800-MESH”)
Choose prefered security mode and define a passphrase (SAE security mode recommended)

3. Define IP settings

Choose “DHCP Client” as prefer setting

All other meshpoints which want to be integrated into the mesh-network need to be configured in the same way“

Mesh Gateway

A mesh gateway is typically the transition point to another network or the way to the internet. In this example we going to modify a Netmodule meshpoint into a mesh gateway. The unit also contents an addtional mobile interface for internet connection. All generated traffic out of the mesh network will be routed into the internet.

1. Define operation Mode

Choose “mesh point” as prefer operation Mode
Choose prefered 2.4GHz chanel (in this example Chanel 6)