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Optical Networking Systems IP Management Solutions

Book Description

Optical Networking Systems IP Management Solutions (Digital Short Cut)

Randy Zhang

ISBN-13: 978-1-58705-351-1

ISBN-10: 1-58705-351-9

Optical Networking Systems (ONS) is a group of optical products from Cisco providing backbone transport, metro access, and wavelength division services. Effective management of these ONS devices requires careful planning and design and clear understanding of the characteristics of the devices and the tools and options that are available.

ONS IP management is a complex subject with little information available beyond the basic configuration. This Short Cut was created based on real customer needs from years of supporting ONS customers and providing expert-level consulting services.

Optical Networking Systems IP Management Solutions goes well beyond the basic documentation and focuses on practical network support needs while also providing guidelines for strategic design and planning requirements. A variety of topics are covered, from the basic configurations to in-depth design solutions. This Short Cut helps you with IP setup and configuration, problem troubleshooting, architectural migration, and planning and design.

Table of Contents:

Chapter 1: Introduction

Chapter 2: Node Addressing Schemes

Chapter 3: Proxy ARP and ARP Sniffing

Chapter 4: Static Routing

Chapter 5: Dynamic Routing

Chapter 6: Large DCC Network Design

Chapter 7: Gateway Options

Chapter 8: Security Options

Chapter 9: Case Studies

Appendix A: ONS 15454 Release Map

Appendix B: Answers to Review Questions

Appendix C: Acronyms

About the Author:

Randy Zhang, Ph.D. and CCIE No. 5659, is a network consulting engineer at Cisco Advanced Services, where he supports Cisco’s strategic service provider and enterprise customers on IP and optical technologies. He has authored many white papers on subjects relating to IP and optical technologies and speaks at Cisco Networkers on optical timing and ONS IP management. He is a coauthor of the Cisco Press book BGP Design and Implementation.

Table of Contents

  1. Copyright
    1. Dedication
  2. About the Author
  3. About the Technical Editor
    1. Acknowledgements
  4. 1. Introduction
    1. Data Communication Network Architecture and Components
    2. Basic IP Configurations
    3. Interfaces and Ports
    4. ONS Management Tools
    5. ML Card Management
    6. Review Questions
  5. 2. Node Addressing Schemes
    1. Basic IP Addressing and Forwarding Rules
    2. A Common Addressing Scheme
    3. GNE Addressing Rules
      1. Rule 1: All GNEs Connected to the Same LAN Segment Should Be in the Same Subnet
      2. Rule 2: All GNEs Whose LANs Are Segmented Should Have Their Own Subnets
    4. ENE Addressing Rules
      1. Rule 1: All Static ENEs Can Be on the Same Subnet as the NOC-bound GNEs That Are Reachable over DCC
      2. Rule 2: For Optimal Forwarding, ENEs Should Be on Subnets Separate from NOC-bound GNEs
      3. Rule 3: For Proper Address Summarization, ENE Subnets Should Be Assigned in a Contiguous Fashion to Use Adjacent Subnets
      4. Rule 4: ENE Subnets Should Not Cross OSPF Area Boundaries
    5. Review Questions
  6. 3. Proxy ARP and ARP Sniffing
    1. Address Resolution Protocol
    2. Proxy ARP
      1. Rule 1: A PAS Responds Only to ARP Requests from the LAN for Peer Addresses on the Same Subnet as the GNE
      2. Rule 2: Peers Must Be Reachable by the PAS GNE via a Host Route
      3. Rule 3: Peers Must Be on the Same OSPF Area as the PAS GNE, or Share One Common Area if the PAS GNE Is on More Than One Area
      4. Rule 4: A PAS GNE Does Not Perform PAS for LAN Peers Attached to the Local LAN of the GNE
      5. Rule 5: Fragmented LAN Peers May Become PAS Clients
      6. Rule 6: On a Given LAN Segment, All GNEs Sharing the Same OSPF Database Compete for PAS. Only the One with the Highest MAC Address Becomes the PAS, and All Other GNEs Become PAS Candidates
    3. ARP Sniffing
    4. Review Questions
  7. 4. Static Routing
    1. Routing and Forwarding Principles
    2. Default Router Options
    3. Local Subnet Route
    4. Static Routing Scenarios
    5. Caveats of Static Routing
    6. Review Questions
  8. 5. Dynamic Routing
    1. OSPF Routing on ONS
    2. OSPF Area Design
      1. Rule 1: Keep the Backbone Area Contiguous, Redundant, and Simple
      2. Rule 2: Maintain Area Size to Contain LSA Flooding Scope
      3. Rule 3: Plan Area ID Assignment to Allow Network Expansion
      4. Rule 4: Put All DCC Links of NEs in the Same BLSR into the Same Area
      5. Rule 5: Keep a Subnet Within a Single Area
    3. Inter-Area Address Summarization
    4. OSPF Deployment Tips
      1. Tip 1: Ensure Redundant Area 0 and Inter-area Connections
      2. Tip 2: Plan Area IDs to Avoid Migration
      3. Tip 3: Ensure That OSPF Is Properly Configured on the Routers Attached to the LAN Before OSPF Is Enabled on GNE ABRs
      4. Tip 4: Balance Summarization with Forwarding Optimization
      5. Tip 5: Limit Total OSPF Entries in the Routing Table to Fewer Than 700
      6. Tip 6: Be Conservative When It Comes to Modifying OSPF Default Settings on GNEs
    5. OSPF Area Migration
      1. Planning Phase
      2. Testing Phase
      3. Implementation Phase
    6. RIP Routing
    7. Review Questions
  9. 6. Large DCC Network Design
    1. Using Appropriate Addressing Schemes
    2. Minimizing the NE-OSS Traffic Flows over DCC
    3. Selecting the Right OSPF Area Architecture
    4. Segmenting the DCC Domain
    5. Review Questions
  10. 7. Gateway Options
    1. The Original Gateway Options
      1. Craft Access Only
      2. Enable Firewall
      3. SOCKS Proxy
      4. Comparisons Among the Original Gateway Options
    2. The Latest Gateway Options
    3. ENE Management
    4. Deployment Considerations
    5. Review Questions
  11. 8. Security Options
    1. Secure Mode
    2. Remote Authentication Dial-In User Service (RADIUS)
    3. Shell Access
    4. Management Tool Security
    5. SOCKS Proxy with External Firewalls and NAT
    6. Review Questions
  12. 9. Case Studies
    1. Secure Mode
    2. Server Trail
    3. Multi-shelf
  13. A. ONS 15454 Release Map
  14. B. Answers to Review Questions
    1. Chapter 1
    2. Chapter 2
    3. Chapter 3
    4. Chapter 4
    5. Chapter 5
    6. Chapter 6
    7. Chapter 7
    8. Chapter 8
  15. C. Acronyms