Specifications

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Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Software Configuration Guide, Cisco IOS Release 15.1(3)MR
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Chapter 1 Cisco MWR 2941 Router Overview
Introduction
The traffic generated by a BTS/Node B is transported to the corresponding BSC/RNC across a network,
referred to as the backhaul network, which is often a hub-and-spoke topology with hundreds of
BTS/Node Bs connected to a BSC/RNC by point-to-point time division multiplexing (TDM) trunks.
These TDM trunks may be leased-line T1/E1s or their logical equivalents, such as microwave links or
satellite channels.
The following sections describe the features available on the Cisco MWR 2941:
• RAN Transport Solutions
• MLPPP Optimization Features
• Intelligent Cell Site IP Services
RAN Transport Solutions
The Cisco MWR 2941 Mobile Wireless Router supports a variety of RAN transport solutions, including
the following:
• IP/Multiprotocol Label Switching (MPLS) RAN backhaul: Allows you to create a high-speed
backhaul for a variety of traffic types, including GSM, CDMA, HSPA/LTE, CDMA, EVDO, and
WiMAX networks.
• Cell-site operations support networks: Facilitates telemetry to cell sites for remote operations and
network element management.
• Cell-site IP points of presence (POPs): Allows you to offer IP services and applications at cell sites.
• Carrier Ethernet features including Resilient Ethernet Protocol (REP), Ethernet Connectivity Fault
Management (CFM), Ethernet Local Management Interface (E-LMI), and Ethernet Operations,
Administration, and Maintenance (OAM)
• Network clocking features including PTP, pseudowire-based clocking, and synchronous Ethernet.
• Flexible backhaul transport including MLPPP over T1, E1, xDSL, and Ethernet
MLPPP Optimization Features
The Cisco MWR 2941 supports several features that improve the performance of Multilink
Point-to-Point Protocol (MLPPP) connections and related applications such as PWE3 over MLPPP and
IP over MLPPP.
Distributed IPHC Offload
By default, the Cisco MWR 2941 offloads processing for distributed Multilink Point-to-Point
Protocol (dMLPPP) to the network processor for improved performance.
Additionally, you can configure distributed IPHC (dIPHC) on a multilink interface for improved
Multilink Point-to-Point Protocol (MLPPP) performance.
Distributed IP Header Compression (dIPHC) allows the Cisco MWR 2941 to compress IP packet headers
for more efficient use of bandwidth. Release 3.5 improves dIPHC performance by shifting processing
from the main CPU to the network processor.