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Cisco Systems 3825 Transportation of ATM Service via MPLS/IP (PWE3/ATM)

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Cisco 3825 Mobile Wireless Edge Router Software Configuration Guide

OL-15667-03

Chapter 1 Overview of the Cisco 3825 Mobile Wireless Edge Router

New Features in Cisco IOS Release 12.4(16)MR1

Transportation of ATM Service via MPLS/IP (PWE3/ATM)

An ATM PW is used to carry ATM cells over an MPLS network. It is an evolutionary technology that

allows you to migrate all packet networks from legacy ATM networks, yet provides transport for legacy

applications.

Configuration for provisioning and creating the PW is done through the existing xconnect command.

The following PW modes are supported in this release:

• Transparent Cell Transport Service/ATM Port Mode, page 1-17

• ATM N-to-One VCC Cell Mode, page 1-17

• ATM AAL5 CPCS-SDU Mode, page 1-18

• ATM VCC Cell Relay Service, page 1-20

The following examples illustrates how different modes of PWs are configured.

Transparent Cell Transport Service/ATM Port Mode

ATM port mode maps the entire ATM interface to a PW. Use the xconnnect command under the interface

mode to configure a port mode PW.

A sample configuration is written as follows:

interface ATM0/0/0

no ip address

scrambling-payload

atm mcpt-timers 1000 2000 3000

no atm ilmi-keepalive

atm cell-packing 28 mcpt-timer 3

xconnect 99.99.99.99 100 encapsulation mpls sequencing both

pvc 1/35 l2transport

encapsulation aal0

!

pvc 1/36 l2transport

encapsulation aal0

!

pvc 1/37 l2transport

encapsulation aal0

!

ATM N-to-One VCC Cell Mode

ATM N:1 VCC cell relay mode maps one or more permanent virtual circuits (P VCs) to one PW. There

are two ways to configure N:1 VCC in cell relay mode:

1. When only one PVC needs to be mapped to a PW, configure the xconnect command under the PVC

mode to configure a N:1 VCC cell relay mode PW.

A sample configuration is written as follows:

interface ATM0/0/1

no ip address

load-interval 30

scrambling-payload

atm mcpt-timers 1000 2000 3000

no atm ilmi-keepalive

pvc 0/101 l2transport

encapsulation aal0

cell-packing 28 mcpt-timer 3

Contents

Main Page CONTENTS Page Page Page Preface Document Revision History Objectives Audience Organization Conventions Related Documentation Page Overview of the Cisco 3825 Mobile Wireless Edge Router Introduction RAN-Optimization Implementation Cisco Abis and Iub Optimization over IP Implementation Cisco GSM Abis Optimization over IP Cisco Pseudowire Emulation Edge-to-Edge (PWE3) Cisco Iub Optimization over IP Intelligent Cell Site IP Services Cell Site Points-of-Presence (POPs) Cisco IOS Software Features Software features for the RAN-O Implementation Software Features Redundancy Support HSRP Configuration Statements for CISCO-IP-RAN-BACKHAUL-MIB Page MIB Support Limitations and Restrictions RAN-O Implementation Limitations and Restrictions Hardware not Supported on the Cisco 3825 Router UMTS Iub and GSM Abis Implementation Limitations and Restrictions Hardware not Supported for UMTS Iub Hardware not Supported for GSM Abis New Features in Cisco IOS Release 12.4(16)MR2 Keyword ignore-vpi-vci Added to xconnect Command New Features in Cisco IOS Release 12.4(16)MR1 GSM UMTS Emulation of TDM Circuit via MPLS/IP (PWE3/TDM) Page Structure-agnostic TDM over Packet (SAToP) Structure-aware TDM CESoPSN Transportation of ATM Service via MPLS/IP (PWE3/ATM) Transparent Cell Transport Service/ATM Port Mode ATM N-to-One VCC Cell Mode ATM AAL5 CPCS-SDU Mode ATM One-to-One VCC Cell Mode Cell Packing PVC Mapping Transportation of ATM Service via L2TPv3 ATM Port Cell Relay Service ATM VCC Cell Relay Service ATM AAL5-SDU Mode Cell Packing PVC Mapping Asymmetric PWE3 Ethernet over MPLS VLAN Mode Port Mode PWE3 over MLPPP PWE3 Redundancy 1-25 TDM PWE3 Redundancy The following examples illustrate the use of the backup peer command: PW Redundancy Without PW Class PW Redundancy With PW Class ATM PWE3 Redundancy Maximum Number of Supported ATM Ports ATM Cell Switching New Features in Cisco IOS Release 12.4(16)MR GSMmuxGlobal System for Mobile Communication (GSM) Abis Optimization over IP UMTSmuxUniversal Mobile Telecommunication System (UMTS) Iub Optimization over IP UMTS Congestion Management Control Inverse Multiplexing over ATM (IMA) Permanent Virtual Circuit (PVC) Routing 1-31 shorthaul/interface name appears after the dash (). 1-32 Behavior Changes The following behavior changes will be apparent when using this PVC Routing feature. 1. When the no atm umts command is applied to a base ATM interface, the command will un-configure the ATM UMTS mode for all the sub-interfaces under that ATM interface. 2. When the no atm umts command is applied to an ATM sub-interface, the command will UMTS QoS 1-34 PVC of a UMTS Shorthaul Interface GSM Shorthaul Interface Page Page Cisco IOS Software Basics Getting Help Understanding Command Modes Undoing a Command or Feature Saving Configuration Changes Where to Go Next Page First-Time Configuration Understanding Boot Images Understanding the Cisco 3825 Router Interface Numbering Slot and Port Numbering Setup Command Facility Before Starting Your Router Using the Setup Command Facility Configuring Global Parameters 3-5 Step 2 When the following message appears, enter yes to begin the initial configuration dialog: Page 3-7 Step 10 Configure the specified interface as prompted. Completing the Configuration To complete your router configuration, do the following: Step 1 A setup command facility prompt asks whether you want to save this configuration. Page Page Before You Begin Verifying the Version of Cisco IOS Software Clocking Requirements for Cisco 3825 Router Clock-Related Commands Network-Clock-Participate Command Network-Clock-Select Command Clock Source Command 4-5 Example Configurations Note The last line of the previous example shows 243 Slip Secs indicating a possible clocking issue. The following examples show two sample configurations: Show Controller Command Configuration Sequence Summary of Steps Configuring the Hostname and Password Verifying the Hostname and Password Configuring Gigabit Ethernet Interfaces Configuring the GE Interface IP Address Setting the Speed and Duplex Mode Enabling the GE Interface Configuring the Backhaul Links Configuring the Card Type for the Cisco 2-port T1/E1-RAN Configuring E1 Controllers Configuring T1 Controllers Page Configuring Network Clocking Support Configuring Multilink Backhaul Interface Creating a Multilink Bundle Handling PFC and ACFC Configuring PFC Configuring ACFC Enable Multilink and Identify the Multilink Interface Enable Real-Time Transport Protocol (RTP) Header-Compression Configuring the PPP Backhaul Interfaces Extended Availability Drop and Insert (EADI) Configuring GSM-Abis Links Page Page Page Configuring UMTS Links Page Page Page Configuring Redundancy Redundant Cisco 3825 Routers Page Page Page Page Standalone Cisco 3825 Router Configuring for SNMP Support Page Page Page Configuring Inverse Multiplexing over ATM (IMA) Page Page Page Configuring PVC Routing (HSDPA Offload) Page Page Page Page Configuring UMTS QoS Creating a Class Map Creating a Policy Map Specify the Location of the Interface Page Page Assigning a QoS Boilerplate to an Interface Page Page Page Configuring UMTS Congestion Management Control Page Page Configuring Satellite Support Configuring Graceful Degradation Page Saving Configuration Changes Example Configurations BTS/Node-B Configuration 4-62 4-63 4-64 4-65 !--- Set VTY password BSC/RNC Configuration hostname !--- Enter <hostname> here !--- Image Name !--- Set the ENABLE password here !--- Example of setting time zone 4-66 4-67 4-68 !--- Set VTY password Monitoring and Managing the Cisco 3825 Router Enabling the Cisco 3825 Router for Remote Network Management Page Show Commands for Monitoring the Cisco 3825 Router Page Where to Go Next Page APPENDIX A Cisco 3825 Mobile Wireless Edge Router RAN-O Command Reference Page Page atm umts atm umts-iub backup delay Page backup peer Page cdp enable cem-group A-12 CESoPSN cem Enters circuit emulation configuration mode. class cem Page clear gsm-abis clear ip rtp header-compression clear umts-iub dejitter-buffer encapsulation l2tpv3 Page gsm-abis congestion abate Page gsm-abis congestion critical Page gsm-abis congestion enable Page gsm-abis congestion onset Page gsm-abis jitter Page gsm-abis local gsm-abis remote gsm-abis retransmit gsm-abis set dscp idle-pattern ima-group interface atm ima ip local interface Page ip protocol ip rtp header-compression Page Page ip tcp header-compression Page Page ip tos (l2tp) Page ipran-mib backhaul-notify-interval Page ipran-mib location ipran-mib snmp-access ipran-mib threshold-acceptable ipran-mib threshold-overloaded ipran-mib threshold-warning keepalive Page load-interval Page match ip dscp Page mode y-cable mpls ip Page pseudowire-class Page pw-pvc redundancy sample-rate scrambling-payload sequencing Page show atm cell-packing show cem circuit Page show cem platform Page show connection Page show gsm-abis efficiency A-81 A-82 clear gsm-abis Clears the statistics displayed. show gsm-abis errors Page show gsm-abis packets show gsm-abis peering A-87 clear gsm-abis Clears the statistics displayed. show gsm-abis traffic show ip rtp header-compression Page show l2tp session Page show l2tp tunnel Page show mpls l2transport vc Page Page Page Page show redundancy Page show umts-iub congestion show umts-iub efficiency show umts-iub errors Page show umts-iub packets show umts-iub peering A-108 Example 3 with IMA shorthaul/interface name appears after the dash (). Example 4 with Alternate Backhaul (192.168.10.2 to 192.168.10.1) A-109 Example 5 with Alarms over Primary Backhaul clear umts-iub Clears the statistics displayed. Example 6 with Congestion Control Status show umts-iub pvc show umts-iub traffic show xconnect all Page Page snmp-server enable traps ipran snmp-server enable traps ipran alarm-gsm snmp-server enable traps ipran alarm-umts snmp-server enable traps ipran util standalone standby use-interface Page umts-iub backhaul-oam umts-iub backhaul-timer umts-iub congestion-control umts-iub congestion priority umts-iub local umts-iub remote Page umts-iub set dscp umts-iub set peering dscp umts local umts remote xconnect Page Page xconnect logging redundancy APPENDIX B Configuration Examples Overview B-2 MWR_2 Asymmetric PWE3 Configuration The following is an example of an Asymmetric PWE3 configuration (see Figure B-1): Figure B-1 Asymmetric PWE3 Configuration PE_1 GE 0/0/0 (Uplink) GE 0/0/1 (Downlink) MWR_1 BTS/Node B BSC/RNC B-3 B-4 B-5 B-6 B-7 B-8 PE_2 B-9 B-10 B-11 B-12 B-13 B-14 B-15 Ethernet over MPLSVLAN and Port Mode Configuration MWR_2 Figure B-2 Ethernet over MPLSVLAN and Port Mode Configuration The following represents both a VLAN and port mode in an Ethernet over MPLS configuration: GE 0/0/1 MWR_1 BTS/Node B BSC/RNC B-16 B-17 MRW_2 B-18 B-19 B-20 B-21 PWE3 over MLPPP Configuration Figure B-3 PWE3 over MLPPP Configuration B-22 B-23 B-24 B-25 MWR_2 B-26 B-27 B-28 B-29 B-30 PWE3 Redundancy Configuration The following is an example of a PWE3 Redundancy configuration (see Figure B-4 ): Figure B-4 PWE3 Redundancy Configuration B-31 B-32 MWR_2 B-33 B-34 B-35 B-36 TDM over MPLS Configuration Figure B-5 TDM over MPLS Configuration TDM over MPLS Configuration B-37 B-38 B-39 B-40 B-41 ATM over MPLS Configurations GE 0/0/1 GE 0/0/1 MWR_B 2.2.2.2/24 2.2.2.3/24 MWR_A B-42 B-43 B-44 B-45 B-46 B-47 B-48 ATM over L2TPv3 Configuration GE 0/0/1 GE 0/0/1 MWR_B 2.2.2.2/24 2.2.2.3/24 MWR_A B-49 B-50 B-51 B-52 B-53 B-54 B-55 GSM Only Configuration MWR_A BTS Figure B-8 GSM Only Configuration GSM Only Configuration B-56 B-57 B-58 B-59 UMTS Only Configuration without IMA MWR_A Node-B Figure B-9 UMTS Only Configuration without IMA UMTS Only Configuration No IMA B-60 B-61 B-62 B-63 Combined GSM and UMTS Configuration Figure B-10 Combined GSM and UMTS Configuration GSM + UMTS Configuration B-64 B-65 B-66 B-67 B-68 GSM and UMTS with IMA Configuration Figure B-11 GSM and UMTS with IMA Configuration GSM + UMTS Configuration With IMA B-69 B-70 B-71 B-72 B-73 B-74 GSM and UMTS with IMA and PVC Routing (HSDPA Offload) Configuration Figure B-12 GSM and UMTS with IMA and PVC Routing (HSDPA Offload) Configuration GSM + UMTS Configuration With IMA and PVC routing B-75 B-76 B-77 B-78 B-79 B-80 GSM Only Configuration via Satellite Figure B-13 GSM Only Configuration via Satellite GSM Only Configuration Via Satellite B-81 B-82 B-83 GSM Congestion Management The GSM congestion management configuration. BTS side: BSC side: B-84 UMTS Congestion Management The UMTS congestion management configuration. Node-B side: RNC side: INDEX A B C Page D E F G H I L M N P R S T U V