Cisco Systems 78-13983-04 manual Overview of the MWR, Benefits

C H A P T E R 1

Overview of the MWR 1900

The MWR 1900 Mobile Wireless Edge Router is a networking platform optimized for use in mobile wireless networks. It extends IP connectivity to the cell site and Base Transceiver Station (BTS), and through a Fast Ethernet interface to the BTS, provides bandwidth-efficient IP transport of voice and data bearer traffic, as well as maintenance, control, and signalling traffic, over the leased line backhaul network between the BTS and leased line termination and aggregation node via compression (cRTP/cUDP) and packet multiplexing (PPPmux and MLPPP). It supports a limited set of interfaces and protocols, but offers high performance at a low cost while meeting the critical requirements for deployment in cell sites, including small size, extended operating temperature range, high availability, and DC input power flexibility.

Benefits

The MWR 1900 router is designed to be used at a cell site as part of an IP-RAN solution. Figure 1-1shows the placement of and connections for the MWR 1900 for this application.

Figure 1-1 MWR 1900 in an IP-RAN Solution

Active

100BaseT

Standby pBTS

MWR 1900 IP BTS router pair

T1/E1 backhaul link to

IP RAN aggregation node

65827

In the IP-RAN solution, the BTS site consists of a pair of MWR 1900 routers. The pair of MWR 1900s provides for an active and standby router for redundancy. A failure of the active MWR 1900 causes the standby router to take over as the active router for the BTS site.

Each pair of MWR 1900 routers at the BTS site is identical in hardware configuration. They connect to each other through the BTS via the Fast Ethernet interfaces. The individual backhaul links to an MWR 1900 router are cabled from a single T1/E1 termination block in the BTS, connecting to both the active and standby routers utilizing a “Y” cable. The redundancy design to control the active/standby

Cisco MWR 1900 Mobile Wireless Edge Router Software Configuration Guide

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