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Cisco 3825 Mobile Wireless Edge Router
Software Configuration Guide
August 14, 2008
Americas Headquarters
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Tel: 408 526-4000
800 553-NETS (6387)
Fax: 408 527-0883
Text Part Number: OL-15667-03
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THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND A
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CONTENTS Preface vii Document Revision History vii Objectives vii Audience viii Organization viii Conventions viii Related Documentation ix Obtaining Documentation, Obtaining Support, and Security Guidelines x Overview of the Cisco 3825 Mobile Wireless Edge Router 1-1 Introduction 1-1 RAN-Optimization Implementation 1-2 Cisco Abis and Iub Optimization over IP Implementation 1-2 Intelligent Cell Site IP Services 1-5 Cisco IOS Software Features
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Contents UMTSmux—Universal Mobile Telecommunication System (UMTS) Iub Optimization over IP 1-27 UMTS Congestion Management Control 1-28 Inverse Multiplexing over ATM (IMA) 1-29 Permanent Virtual Circuit (PVC) Routing 1-30 UMTS QoS 1-33 Cisco IOS Software Basics 2-1 Getting Help 2-1 Understanding Command Modes 2-2 Undoing a Command or Feature 2-3 Saving Configuration Changes 2-3 Where to Go Next 2-3 First-Time Configuration 3-1 Understanding Boot Im
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Contents Configuring for SNMP Support 4-33 Configuring Inverse Multiplexing over ATM (IMA) 4-37 Configuring PVC Routing (HSDPA Offload) 4-41 Configuring UMTS QoS 4-46 Configuring UMTS Congestion Management Control 4-55 Configuring Satellite Support 4-58 Configuring Graceful Degradation 4-59 Saving Configuration Changes 4-61 Example Configurations 4-61 Monitoring and Managing the Cisco 3825 Router 4-69 Enabling the Cisco 3825 Router for Remote Network Manag
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Contents Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide vi OL-15667-03
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Preface This preface describes the objectives, audience, organization, and conventions of this software configuration guide. This preface contains the following sections: • Document Revision History, page vii Objectives, page vii Audience, page viii Organization, page viii Conventions, page viii Related Documentation, page ix Obtaining Documentation, Obtaining Support, and Security Guidelines, page x Document Revision History The Document Revision History table below rec
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Preface Audience This publication is designed for the person who will be responsible for configuring the router. This guide is intended for the following audiences: Customers with technical networking background and experience System administrators who are familiar with the fundamentals of router-based internet working, but who may not be familiar with Cisco IOS software System administrators who are responsible for installing and configuring internetworking equipment, and
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Preface Convention Description < > Nonprinting characters, for example passwords, appear in angle brackets. [ ] Default responses to system prompts appear in square brackets. Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the manual. Timesaver Means the described action saves time. You can save time by performing the action described in the paragraph. Tip Means the following information will help you solve a problem. The tips
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Preface Obtaining Documentation, Obtaining Support, and Security Guidelines For information on obtaining documentation, obtaining support, providing documentation feedback, security guidelines, and also recommended aliases and general Cisco documents, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at: http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html Cisco 3825 Mobile Wireless Edge Router S
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CH A P T E R 1 Overview of the Cisco 3825 Mobile Wireless Edge Router The Cisco 3825 Mobile Wireless Edge Router is a networking platform optimized for use in mobile wireless networks; specifically designed to be used at the cell site edge as a part of a 2G, 3G or 4G Radio Access Network (RAN). The Cisco 3825 Mobile Wireless Edge Router is a general purpose router platform specializing in 2/2.5G Global System for Mobile Communication (GSM) and 3G Universal Mobile Telecommunication Syst
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Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router Introduction Division Multiple Access (CDMA) systems is called the Abis interface. The interface between the Node B and RNC in a UMTS system is called the Iub interface (see Appendix B, “Configuration Examples”, for sample configurations. RAN-Optimization Implementation In RAN-Optimization (RAN-O), the Cisco 3825 router extends IP connectivity to the cell site and BTS. The router provides bandwidth-efficient IP tra
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Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router Introduction Another equally important benefit is that substantial excess capacity is now available in the existing RAN backhaul network. The operator can reallocate this recovered bandwidth to carry traffic from other radios, such as UMTS Node Bs, GPRS, EDGE, 1xEV-DO, PWLANs, and other data overlays. This capability reduces the deployment and operating costs for new technologies, since the operator avoids the up-
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Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router Introduction users. Each DS0 bearer channel carries up to four sub-multiplexed 16 kbps channels, termed sub-rate DS0s. The voice and data bearer traffic is carried over the sub-rate DS0s in Transcoder and Rate Adaptor Unit (TRAU) frames in accordance with 3GPP TS 08.60 v8.2.1, “In-band control of transcoders and rate adaptors for Enhanced Full Rate (EFR) and full rate traffic channels.” There are several types of T
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Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router Introduction Figure 1-3 Example of Cisco 3825 Router in a PWE3f ATM/TDM xconnect xconnect ATM/TDM MPLS/IP or L2TPv3 Pseudowire Emulated Circuit Cisco Iub Optimization over IP The Cisco Iub Optimization over IP technology for R4/R99 (ATM) UMTS RANs improves bandwidth efficiency by as much as 15 to 40%, corresponding to a UMTS voice call capacity gain of 18 to 67%, depending on the type of Iub header and ATM Adaptatio
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Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router Cisco IOS Software Features Figure 1-4 Example of Cisco 3825 Router in a Cell Site POP GSM/GPRS/ EDGE BTS BSC TDM TDM Cisco Cisco ONS 15454 MWR T1/E1 Optimized Abis and lub over IP ATM ATM (AAL2/AAL5) UMTS Node B RNC (R4/R99) Cell Site Access Network BSC/RNC Site Mobile Internet Edge Cisco IOS Software Features There is one version of software available for the Cisco 3825 router. This version of the software is requi
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Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router Cisco IOS Software Features Software Features Standard Cisco IOS software features supported in the Cisco 3825 router for the RAN-O implementation include: Simple Services DHCP PPP NAT OSPF RIP Intelligent Services QoS VPN IP Multicast Mobile IP/FA content caching MPLS L2TPv3 Other Services ACFC and PFC Handling During PPP Negotiation HSRP NTP SNMP Redundancy Support I
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Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router Cisco IOS Software Features Configuration Statements for CISCO-IP-RAN-BACKHAUL-MIB This section contains detailed information on how to enable notifications provided by the CISCO-IP-RAN-BACKHAUL-MIB. With Cisco IOS Release 12.4(16)MR1, the Cisco 3825 router supports the following MIB: CISCO-IP-RAN-BACKHAUL-MIB This MIB is compatible with Cisco Mobile Wireless Transport Manager (MWTM) 5.0 or later. It provides inform
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Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router Cisco IOS Software Features ipran-mib ? threshold-acceptable Acceptable utilization threshold (Obsolete. Provided only to maintain compatibility.) threshold-overloaded Overloaded utilization threshold (Obsolete. Provided only to maintain compatibility.) threshold-warning Warning utilization threshold (Obsolete. Provided only to maintain compatibility.) ipran-mib backhaul-notify-interval For more information on t
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Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router MIB Support MIB Support The Cisco 3825 router supports the following MIBs: ADSL-DMT-LINE-MIB CISCO-IETF-ATM2-PVCTRAP-MIB-EXTN ADSL-LINE MIB CISCO-IETF-ATM2-PVCTRAP-MIB ATM-MIB CISCO-IETF-NAT-MIB BRIDGE-MIB CISCO-IETF-PW-MIB CISCO-AAA-SERVER-MIB CISCO-IETF-PW-MPLS-MIB CISCO-AAL5-MIB CISCO-IETF-PW-TC-MIB CISCO-ACCESS-ENVMON-MIB CISCO-IF-EXTENSION-MIB CISCO-ATM-EXT-MIB CISCO-IMAGE-
