Cisco Cisco Aironet 1524 Lightweight Outdoor Mesh Access Point
9
Mobile Access Router and Mesh Networks Design Guide
OL-11823-01
Using the MAR with a Cisco 1500 Mesh AP Network
Vehicle Network Example
This section describes a simple application for the MAR3200 in a Mesh network using its universal
workgroup bridge feature to connect to the Mesh WLAN.
workgroup bridge feature to connect to the Mesh WLAN.
illustrates this example.
•
A Cisco 3200 Series router installed in a mobile unit allows the client devices in and around the
vehicle to stay connected while the vehicle is roaming.
vehicle to stay connected while the vehicle is roaming.
•
WMICs in vehicle-mounted Cisco 3200 Series routers are configured as access points to provide
connectivity for 802.11b/g and 4.9-GHz wireless clients.
connectivity for 802.11b/g and 4.9-GHz wireless clients.
•
Ethernet interfaces are used to connect any in-vehicle wired clients, such as a laptop, camera, or
telematics devices, to the network.
telematics devices, to the network.
•
Another WMIC is configured as a Universal Workgroup Bridge for connectivity to a Mesh AP,
allowing transparent association and authentication through a root device in the architecture as the
vehicle moves about.
allowing transparent association and authentication through a root device in the architecture as the
vehicle moves about.
•
Serial interfaces provide connectivity to wireless WAN modems that connect to cellular networks
such as CDMA or GPRS. The Wireless 802.11 connections are treated as preferred services because
they offer the most bandwidth. However, when a WLAN connection is not available, cellular
technology provides a backup link. Connection priority can be set by routing priority, or by the
priority for Mobile IP.
such as CDMA or GPRS. The Wireless 802.11 connections are treated as preferred services because
they offer the most bandwidth. However, when a WLAN connection is not available, cellular
technology provides a backup link. Connection priority can be set by routing priority, or by the
priority for Mobile IP.
Figure 4
Vehicle Network Example
Simple Universal Bridge Client Data Path
The IP devices connected to the MAR are not aware that they are part of a mobile network. When they
must communicate with another node in the network, their traffic is sent to their default gateway, the
Cisco 3200 Series router. The Cisco 3200 Series router forwards the traffic to the Mesh APs WLAN, the
mesh AP then encapsulates the data packets in LWAPP and forwards them through the network to the
controller.
must communicate with another node in the network, their traffic is sent to their default gateway, the
Cisco 3200 Series router. The Cisco 3200 Series router forwards the traffic to the Mesh APs WLAN, the
mesh AP then encapsulates the data packets in LWAPP and forwards them through the network to the
controller.
As shown in
, the Cisco 3200 Series router sends traffic over the Universal Bridge Client WLAN
backhaul link. This traffic then crosses the WLAN to the controller where it is then forwarded out the
controller interface to the wired network. Return traffic destined for any client attached to the MAR
controller interface to the wired network. Return traffic destined for any client attached to the MAR
Mesh Network
190902
802.11