Cisco Systems 3825 manual N T E N T S, Iii

C O N T E N T S

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		1-6
Software features for the RAN-O Implementation 1-6
MIB Support 1-10
Limitations and Restrictions		1-11
RAN-O Implementation Limitations and Restrictions				1-12
UMTS Iub and GSM Abis Implementation Limitations and Restrictions 1-12
New Features in Cisco IOS Release 12.4(16)MR2			1-13
Keyword ignore-vpi-vci Added to xconnect Command				1-13
New Features in Cisco IOS Release 12.4(16)MR1			1-13
Emulation of TDM Circuit via MPLS/IP (PWE3/TDM)				1-14
Transportation of ATM Service via MPLS/IP (PWE3/ATM) 1-17
Transportation of ATM Service via L2TPv3			1-20
Asymmetric PWE3	1-22
Ethernet over MPLS	1-23
PWE3 over MLPPP	1-24
PWE3 Redundancy	1-24
Maximum Number of Supported ATM Ports			1-26
ATM Cell Switching	1-26
New Features in Cisco IOS Release 12.4(16)MR			1-27
GSMmux—Global System for Mobile Communication (GSM) Abis Optimization over IP 1-27
		Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide
OL-15667-03					iii