Cover image for Cisco self-study : building Cisco metro optical networks (METRO)
Title:
Cisco self-study : building Cisco metro optical networks (METRO)
Personal Author:
Series:
Certification self-study series
Publication Information:
Indianapolis, IN : Cisco Press, 2004
ISBN:
9781587050701
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30000010105270 TK5105.85 W37 2004 Open Access Book Book
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Summary

Summary

Meant for IT directors, network engineers, and other professionals, this guide provides information on configuring Metro Optical Transport Platforms, Packet over SONET and the network components of WDM and DWDM and their specifications. It is based upon official Cisco training materials for the Building Cisco Metro Optical Networks course.


Author Notes

Dave Warren , CCNP, CCDP, is an independent consultant and trainer in the computer and networking industry. Mr. Warren has been training internal Cisco SEs and AMs in the Cisco Optical Product line.


Table of Contents

Introduction
1 Metro Area Optical Networks
Components of a MAN
Metro
Service POP
Core
MAN Services
Access Services
Metro Optical Services
Service POP Services
Core Services
MAON Physical Topologies
Four Key Service Traffic Patterns
Service Offerings and Opportunities
Corporate Network RequirementsService Technologies
Summary
Review Questions
2 Voice History
A Short History of Voice and Data Transmission
Digital Hierarchy
Developing a Digital Hierarchy Outside the United States
Expanding the Digital Hierarchy
Summary
Review Questions
3 SONET Overview
SONET and SDH Overview
SONET Development and Fundamentals
SONET Advantages
Single-Step Multiplexing
Access to Low-level Signal Directly
Carry Existing DS1, DS3, ATM, and Packet Traffic
Synchronous Timing to Eliminate Bit Stuffing
Allow Transmission of Data at Higher Speeds
SONET Layers
Photonic Layer
Section Layer
Line Layer
Path Layer
SONET Framing
Section Overhead
Line Overhead
Path Overhead
SONET Network Elements
Terminal Multiplexer
Add/Drop Multiplexers
Regenerators or Amplifiers
Digital Cross-Connects
SONET DCS
Digital Loop Carriers
Drop and Continue
SONET Topologies
Point-to-Point Topology
Point-to-Multipoint/Linear Topology
Mesh Topology
Ring Topology
Automatic Protection Switching
Path-Protected Mesh Network
Cisco BLSR Ring Enhancements
SONET Alarms
Error-Causing Events
Error Event Propagation
Performance Event Collection
SONET Management
Cisco SONET Enhancements
SONET Network Element Management
Cisco UPSR Ring Enhancements
Summary
Review Questions
4 ONS 15454 and ONS 15327 Optical Platforms
Choosing a Cisco Metro-Area Network Platform
Cisco ONS 15454 Optical Platform
Control Cards
Electrical Cards
Optical Cards
Ethernet Cards
Cisco ONS 15327 Platform
Common Control and Electrical Cards
Optical and Ethernet Cards
Cisco Transport Controller
Summary
Review Questions
5 Configuring ONS 15454 and ONS 15327
Initial Configuration of the Cisco ONS 15454 and 15327
Troubleshooting CTC
Entering Basic Node Information
General Subtab
Network Subtab
Security Subtab
Protection Subtab
Configuring SONET Timing
Timing in Linear Networks
Timing in Metro Rings
Ring Synchronization
Timing Subtab
Activating Cards
Ring Configurations
Two-Fiber BLSR Architecture
Four-Fiber BLSR Architecture
Creating UPSR Rings Through the SONET DCC Subtab
Verifying a UPSR Ring Configuration
Creating Two-Fiber BLSR Rings
Provisioning the BLSR
Verifying a BLSR Ring Configuration
Four-Fiber BLSR Ring
Summary
Review Questions
6 Metro Ethernet Services
Market Drivers for Metropolitan Ethernet
Metropolitan Ethernet Market Drivers
Metro Ethernet Architectures
Customer Premises Equipment
POP Interconnect
Transporting Metro Ethernet
Ethernet over SONET
Ethernet over DWDM
Point-to-Point Dedicated Metro Ethernet Circuits
Point-to-Multipoint Shared/Shared Packet Ring
Quality of Service
ONS 15454 and ONS 15327 Metro Ethernet Blades
Summary
Review Questions
7 Configuring Metro Ethernet
Configuring Metro Ethernet Circuits
Step 1 Card Mode Configuration
Step 2 Configuring Port Options
Step 3 VLAN Configuration
Step 4 Creating Circuits
Step 5 Circuit Verification
Troubleshooting Metro Ethernet Connectivity
Summary
Review Questions
8 Implementing DWDM in Metropolitan-Area Networks
Challenges in the Metro-Area Network
Multiplexing Optical Signals
The Technology Behind DWDM
DWDM Components
DWDM Optical Limitations
Cisco DWDM Equipment
OC-48 ELR ITU Optics
Cisco ONS 15216 Filters (200-GHz Spacing)
Planning an Optical System Using Cisco Equipment
Span-Loss Calculation
Building a DWDM Infrastructure
DWDM Network Requirements
Provisioning the OC-48 ELR ITU Optics Card
Summary
Review Questions
9 Packet over SONET
Evolution of Voice and Data Networks
Applications for PoS. ATM and PoS
PoS Transport
Multiaccess Protocol over SONET
Packet over SONET Operation and Specifications
High-Order Containment
Payload Scrambling
PoS Efficiencies
PoS Network Designs
One Router
Two Routers
PoS Protection Schemes
PoS Convergence
Flapping
Load Balancing
Alarms and PoS
Summary
Review Questions
10 Configuring Packet over SONET
Cisco 12000 Series PoS Line Cards
Cisco PoS Line Card Features
Packet over SONET Physical Fiber Configuration
Configuring PoS Interfaces
Accessing the PoS Interface
IP Address
Encapsulation
Framing
Payload Scrambling
CRC
Clocking
PoS ais-shut Command
Alarm Thresholds
Sample PoS Interface Configurations
PoS Configuration Without Protection
PoS Configuration with APS Protection
PoS show Commands
Show controllers pos Command
Show protocols pos Command
Show interfaces pos Command
Show aps Command
Verifying the PoS Configuration Using ping
Physical Interface Loopbacks
Summary
Review Questions
11 Dynamic Packet Transport
Background Information
IP+Optical Concepts
DPT: An Efficient MAN Solution
Internetworking with SONET
DPT in Campus and MAN Environments
SRP
SRP Protection
SRP Packets
DPT Rings
SRP Ring Selection
Ethernet and the DPT Ring
Automatic Configuration of DPT Rings
DPT Quality of Service
SRP Fairness Algorithm (SRP-fa)
SRP-fa Monitoring
Maintaining Network Reliability
Automatic Reconfiguration and Rerouting
Node States and Ring Operation
Summary
Review Questions
12 Configuring Dynamic Packet Transport
Reviewing the Cisco DPT Platforms
Metro IP Access Ring with DPT
DPT Configuration
Verifying and Troubleshooting DPT
DPT show Commands
Show interfaces srp Command
Show srp Command
Show version Command
Show diag Command
Show controllers srp Command
Show srp topology Command
DPT debug Commands
Debug srp protocol error Command
Debug srp ips Command
Debug srp nodename Command
Debug srp packet Command
Debug srp periodic activity Command
Debug srp topology Command
DPT over an ONS 15454/15327 SONET Ring
ONS 15454 and 15327 DPT Circuit Provisioning
Summary
Review Questions
13 Metro Optical Case Studies
Steps for Developing a Metro Optical Solution
Customer Requirements
Component Manufacturers
System Manufacturers
Fiber Manufacturers
Service Providers
Physical Technical Specifications
Fiber-Loss Variables
Fiber-Loss Information for ONS 15216 and 15454 Products
ONS 15216 Product Specifications
ONS 15216 DWDM Filters
ONS 15454 Line Cards
Power Conversion (Aggregate to Per Channel)
Power-Conversion Examples (Aggregate to Per Channel)
Exercises
Exercise Formulas
Exercise
1 Exercise
2 Exercise
3 Case Study 1: SPR Enterprises
Phase 1 Identify Requirements
Phase 2 Identify Options
Phase 3 Design Solution
Phase 4 Create a Solution Summary
Case Study 1 Solution: SPR Enterprises
Case Study 2 FC Enterprises
Phase 1 Identify Requirements
Phase 2 Identify Options
Phase 3 Design Solution
Phase 4 Create a Solution Summary
Case Study 2 Solution: FC Enterprises
Objective. Solution
Answers to Review Questions