Network Router User Manual

B-1

Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide

OL-15667-03

APPENDIX

Configuration Examples

This appendix provides real-world examples of RAN-O configurations.

• Asymmetric PWE3 Configuration, page B-2

• Ethernet over MPLS—VLAN and Port Mode Configuration, page B-15

• PWE3 over MLPPP Configuration, page B-21

• PWE3 Redundancy Configuration, page B-30

• TDM over MPLS Configuration, page B-36

• ATM over MPLS Configurations, page B-41

• ATM over L2TPv3 Configuration, page B-48

• GSM Only Configuration, page B-55

• UMTS Only Configuration without IMA, page B-59

• Combined GSM and UMTS Configuration, page B-63

• GSM and UMTS with IMA Configuration, page B-68

• GSM and UMTS with IMA and PVC Routing (HSDPA Offload) Configuration, page B-74

• GSM Only Configuration via Satellite, page B-80

• GSM Congestion Management, page B-83

• UMTS Congestion Management, page B-84

Note The network addresses in these examples are generic addresses, so you must replace them with actual

addresses for you network.

Overview

The Radio Access Network-Optimization (RAN-O) supports a variety of topology designs based on

various Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications

System (UMTS) configurations. Here are some common pieces to this topology:

• A backhaul interface is used to transfer optimized GSM/UMTS traffic between RAN-O devices. The

traditional backhaul interface is comprised of one or more T1/E1 controllers logically combined to

form a multilink connect (except High-Speed Down link Packet Access [HSDPA] which uses the

backhaul interface for T1/E1 line clocking). The current versions of RAN-O deployment will

include faster backhaul interfaces such as Fast Ethernet (FE) and Gigabit Ethernet (GE).