Course Overview

This course provides detailed instruction on how to configure and monitor the Cisco® ASR 5000 to function as an evolved packet data gateway (ePDG) in a 4G Wi-Fi offload network environment.

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3 days
  • Upon completion of this course, you should have a thorough understanding of the following aspects of the platform:

    • Performing basic service configuration and monitoring of the ePDG
    • Monitoring the system for proper subscriber session establishment
    • Basic debugging of initial attachment failure
  • Lesson 1: Getting Started with 4G Wi-Fi Offload

    • Client versus clientless devices
    • Trusted versus untrusted devices
    • ePDG and Wi-Fi infrastructure
    • Role of wireless LAN controller (WLC)
    • SSIDs and VLANs
    • EAP-based WLAN authentication
    • Portal-based WLAN authentication
    • Obtaining IP address of ePDG
    • Initial attachment via ePDG

    Lesson 2: Hardware Overview of the ASR 5000

    • Viewing card status
    • Viewing port status
    • Basics of link aggregation

    Lesson 3: Software overview of the ASR 5000

    • Software tasks on ePDG
    • Session recovery basics
    • Software licensing
    • System file system management

    Lesson 4: Terminology 

    • Logical interfaces
    • Bindings

     Lesson 5: Configuring the ASR 5000 as an ePDG

    • SWu interface
    • IPSec transforms and policies
    • DIAMETER AAA SWm interface
    • ePDG service configuration
    • MAG service configuration
    • Role of DNS

    Lesson 6: Monitoring and Troubleshooting ePDG Operation

    • Viewing subscriber sessions
    • Obtaining IPSec information and statistics
    • Examining the ePDG service
    • DIAMETER proxy operation on the ASR 5000
    • Viewing MAG service operation

    Lesson 7: Logging on the ASR 5000

    • Viewing system logs
    • Configuring runtime logging
    • Redirecting logging output
    • Logging a subscriber session
    • Configuring a syslog server
    • Crash logging

    Lesson 8: Threshold Crossing Alarms (TCAs)

    • Alert versus alarm model
    • Displaying threshold crossing alarm settings
    • Configuring threshold crossing alarms
    • Viewing alarms that have fired
    • Lab: Configuring an ePDG
  • Following are the prerequisites for this course:

    Participants must have a thorough understanding of IP routing, networking protocols, and a basic working knowledge of applicable Wi-Fi network operation.

    Participant Material Requirements

    Participants are required to bring the following materials to this training course:

    Laptop or notebook computer with:

    • Terminal emulation program (such as PuTTY, available at capable of Telnet or SSH
    • 10/100BASE-T Ethernet interface
  • This course is designed for participants from any of the following disciplines who are responsible for the planning, configuration, and management of the ASR 5000:

    • Network engineering
    • Network consulting
    • Customer support
    • Field engineering