Submit Search
Upload
CCNA4 Verson6 Chapter8
•
Download as PPTX, PDF
•
2 likes
•
1,147 views
Chaing Ravuth
Follow
CCNA4 Verson6 Chapter8
Read less
Read more
Education
Report
Share
Report
Share
1 of 28
Download now
Recommended
CCNA3 Verson6 Chapter1
CCNA3 Verson6 Chapter1
Chaing Ravuth
CCNA (R & S) Module 02 - Connecting Networks - Chapter 8
CCNA (R & S) Module 02 - Connecting Networks - Chapter 8
Waqas Ahmed Nawaz
Ccna4
Ccna4
sizal1986
CCNA4 Verson6 Chapter1
CCNA4 Verson6 Chapter1
Chaing Ravuth
CCNA2 Verson6 Chapter5
CCNA2 Verson6 Chapter5
Chaing Ravuth
CCNA4 Verson6 Chapter7
CCNA4 Verson6 Chapter7
Chaing Ravuth
CCNA4 Verson6 Chapter5
CCNA4 Verson6 Chapter5
Chaing Ravuth
CCNP Switching Chapter 10
CCNP Switching Chapter 10
Chaing Ravuth
Recommended
CCNA3 Verson6 Chapter1
CCNA3 Verson6 Chapter1
Chaing Ravuth
CCNA (R & S) Module 02 - Connecting Networks - Chapter 8
CCNA (R & S) Module 02 - Connecting Networks - Chapter 8
Waqas Ahmed Nawaz
Ccna4
Ccna4
sizal1986
CCNA4 Verson6 Chapter1
CCNA4 Verson6 Chapter1
Chaing Ravuth
CCNA2 Verson6 Chapter5
CCNA2 Verson6 Chapter5
Chaing Ravuth
CCNA4 Verson6 Chapter7
CCNA4 Verson6 Chapter7
Chaing Ravuth
CCNA4 Verson6 Chapter5
CCNA4 Verson6 Chapter5
Chaing Ravuth
CCNP Switching Chapter 10
CCNP Switching Chapter 10
Chaing Ravuth
CCNA (R & S) Module 02 - Connecting Networks - Chapter 1
CCNA (R & S) Module 02 - Connecting Networks - Chapter 1
Waqas Ahmed Nawaz
Exploration_Routing_Chapter_7
Exploration_Routing_Chapter_7
dinuk123
CCNA Routing and Switching IT Certifications
CCNA Routing and Switching IT Certifications
Muhammad Qasim
CCNA v6.0 ITN - Chapter 11
CCNA v6.0 ITN - Chapter 11
Irsandi Hasan
CCNA
CCNA
niict
CCNAv5 - S4: Chapter2 Connecting To The Wan
CCNAv5 - S4: Chapter2 Connecting To The Wan
Vuz Dở Hơi
CCNA 2 Routing and Switching v5.0 Chapter 1
CCNA 2 Routing and Switching v5.0 Chapter 1
Nil Menon
CCNAv5 - S3: Chapter1 Introduction to Scaling Networks
CCNAv5 - S3: Chapter1 Introduction to Scaling Networks
Vuz Dở Hơi
CCNA 1 Routing and Switching v5.0 Chapter 11
CCNA 1 Routing and Switching v5.0 Chapter 11
Nil Menon
CCNA4 Verson6 Chapter6
CCNA4 Verson6 Chapter6
Chaing Ravuth
CCNA (R & S) Module 04 - Scaling Networks - Chapter 3
CCNA (R & S) Module 04 - Scaling Networks - Chapter 3
Waqas Ahmed Nawaz
Routing and switching essentials companion guide
Routing and switching essentials companion guide
Siddhartha Rajbhatt
CCNA (R & S) Module 01 - Introduction to Networks - Chapter 6
CCNA (R & S) Module 01 - Introduction to Networks - Chapter 6
Waqas Ahmed Nawaz
CCNA2 Verson6 Chapter10
CCNA2 Verson6 Chapter10
Chaing Ravuth
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 4
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 4
Waqas Ahmed Nawaz
CCNA 1 Routing and Switching v5.0 Chapter 5
CCNA 1 Routing and Switching v5.0 Chapter 5
Nil Menon
CCNA Discovery 2 - Chapter 9
CCNA Discovery 2 - Chapter 9
Irsandi Hasan
CCNAv5 - S4: Chapter 9 troubleshooting the network
CCNAv5 - S4: Chapter 9 troubleshooting the network
Vuz Dở Hơi
CCNAv5 - S2: Chapter2 Basic Switching Concepts and Configuration
CCNAv5 - S2: Chapter2 Basic Switching Concepts and Configuration
Vuz Dở Hơi
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 5
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 5
Waqas Ahmed Nawaz
CCNA 3 - Troubleshooting the network
CCNA 3 - Troubleshooting the network
Muhd Mu'izuddin
CCNA 1 Routing and Switching v5.0 Chapter 1
CCNA 1 Routing and Switching v5.0 Chapter 1
Nil Menon
More Related Content
What's hot
CCNA (R & S) Module 02 - Connecting Networks - Chapter 1
CCNA (R & S) Module 02 - Connecting Networks - Chapter 1
Waqas Ahmed Nawaz
Exploration_Routing_Chapter_7
Exploration_Routing_Chapter_7
dinuk123
CCNA Routing and Switching IT Certifications
CCNA Routing and Switching IT Certifications
Muhammad Qasim
CCNA v6.0 ITN - Chapter 11
CCNA v6.0 ITN - Chapter 11
Irsandi Hasan
CCNA
CCNA
niict
CCNAv5 - S4: Chapter2 Connecting To The Wan
CCNAv5 - S4: Chapter2 Connecting To The Wan
Vuz Dở Hơi
CCNA 2 Routing and Switching v5.0 Chapter 1
CCNA 2 Routing and Switching v5.0 Chapter 1
Nil Menon
CCNAv5 - S3: Chapter1 Introduction to Scaling Networks
CCNAv5 - S3: Chapter1 Introduction to Scaling Networks
Vuz Dở Hơi
CCNA 1 Routing and Switching v5.0 Chapter 11
CCNA 1 Routing and Switching v5.0 Chapter 11
Nil Menon
CCNA4 Verson6 Chapter6
CCNA4 Verson6 Chapter6
Chaing Ravuth
CCNA (R & S) Module 04 - Scaling Networks - Chapter 3
CCNA (R & S) Module 04 - Scaling Networks - Chapter 3
Waqas Ahmed Nawaz
Routing and switching essentials companion guide
Routing and switching essentials companion guide
Siddhartha Rajbhatt
CCNA (R & S) Module 01 - Introduction to Networks - Chapter 6
CCNA (R & S) Module 01 - Introduction to Networks - Chapter 6
Waqas Ahmed Nawaz
CCNA2 Verson6 Chapter10
CCNA2 Verson6 Chapter10
Chaing Ravuth
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 4
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 4
Waqas Ahmed Nawaz
CCNA 1 Routing and Switching v5.0 Chapter 5
CCNA 1 Routing and Switching v5.0 Chapter 5
Nil Menon
CCNA Discovery 2 - Chapter 9
CCNA Discovery 2 - Chapter 9
Irsandi Hasan
CCNAv5 - S4: Chapter 9 troubleshooting the network
CCNAv5 - S4: Chapter 9 troubleshooting the network
Vuz Dở Hơi
CCNAv5 - S2: Chapter2 Basic Switching Concepts and Configuration
CCNAv5 - S2: Chapter2 Basic Switching Concepts and Configuration
Vuz Dở Hơi
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 5
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 5
Waqas Ahmed Nawaz
What's hot
(20)
CCNA (R & S) Module 02 - Connecting Networks - Chapter 1
CCNA (R & S) Module 02 - Connecting Networks - Chapter 1
Exploration_Routing_Chapter_7
Exploration_Routing_Chapter_7
CCNA Routing and Switching IT Certifications
CCNA Routing and Switching IT Certifications
CCNA v6.0 ITN - Chapter 11
CCNA v6.0 ITN - Chapter 11
CCNA
CCNA
CCNAv5 - S4: Chapter2 Connecting To The Wan
CCNAv5 - S4: Chapter2 Connecting To The Wan
CCNA 2 Routing and Switching v5.0 Chapter 1
CCNA 2 Routing and Switching v5.0 Chapter 1
CCNAv5 - S3: Chapter1 Introduction to Scaling Networks
CCNAv5 - S3: Chapter1 Introduction to Scaling Networks
CCNA 1 Routing and Switching v5.0 Chapter 11
CCNA 1 Routing and Switching v5.0 Chapter 11
CCNA4 Verson6 Chapter6
CCNA4 Verson6 Chapter6
CCNA (R & S) Module 04 - Scaling Networks - Chapter 3
CCNA (R & S) Module 04 - Scaling Networks - Chapter 3
Routing and switching essentials companion guide
Routing and switching essentials companion guide
CCNA (R & S) Module 01 - Introduction to Networks - Chapter 6
CCNA (R & S) Module 01 - Introduction to Networks - Chapter 6
CCNA2 Verson6 Chapter10
CCNA2 Verson6 Chapter10
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 4
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 4
CCNA 1 Routing and Switching v5.0 Chapter 5
CCNA 1 Routing and Switching v5.0 Chapter 5
CCNA Discovery 2 - Chapter 9
CCNA Discovery 2 - Chapter 9
CCNAv5 - S4: Chapter 9 troubleshooting the network
CCNAv5 - S4: Chapter 9 troubleshooting the network
CCNAv5 - S2: Chapter2 Basic Switching Concepts and Configuration
CCNAv5 - S2: Chapter2 Basic Switching Concepts and Configuration
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 5
CCNA (R & S) Module 03 - Routing & Switching Essentials - Chapter 5
Similar to CCNA4 Verson6 Chapter8
CCNA 3 - Troubleshooting the network
CCNA 3 - Troubleshooting the network
Muhd Mu'izuddin
CCNA 1 Routing and Switching v5.0 Chapter 1
CCNA 1 Routing and Switching v5.0 Chapter 1
Nil Menon
ITN6_Instructor_Materials_Chapter11.pdf
ITN6_Instructor_Materials_Chapter11.pdf
ThangDang53
CCNA (R & S) Module 01 - Introduction to Networks - Chapter 11
CCNA (R & S) Module 01 - Introduction to Networks - Chapter 11
Waqas Ahmed Nawaz
CCNAv5 - S1: Chapter11 It's A Network
CCNAv5 - S1: Chapter11 It's A Network
Vuz Dở Hơi
Chapter 11 : It’s a network
Chapter 11 : It’s a network
teknetir
Chapter 11 - It’s a Network
Chapter 11 - It’s a Network
Yaser Rahmati
Itn instructor ppt_chapter1 - exploring the network
Itn instructor ppt_chapter1 - exploring the network
joehurst87
Itn instructor ppt_chapter1 exploring the network smartskills
Itn instructor ppt_chapter1 exploring the network smartskills
Tiago Monteiro
Ccna v5-S1-Chapter 11
Ccna v5-S1-Chapter 11
Hamza Malik
Ccna v5-S1-Chapter 1
Ccna v5-S1-Chapter 1
Hamza Malik
CCNAv5 - S4: Chapter 1 Hierarchical Network Design
CCNAv5 - S4: Chapter 1 Hierarchical Network Design
Vuz Dở Hơi
CCNA RS_ITN - Chapter 1
CCNA RS_ITN - Chapter 1
Irsandi Hasan
CCNAv5 - S1: Chapter 1 Exploring The Network
CCNAv5 - S1: Chapter 1 Exploring The Network
Vuz Dở Hơi
Itninstructorpptchapter1final 141024004546-conversion-gate02
Itninstructorpptchapter1final 141024004546-conversion-gate02
Mustapha Kohili
Chapter 1 : Exploring the Network
Chapter 1 : Exploring the Network
teknetir
Chapter 01 - Exploring the Network
Chapter 01 - Exploring the Network
Yaser Rahmati
ITN_instructorPPT_Chapter1.pptx
ITN_instructorPPT_Chapter1.pptx
AbdisayidkhalifTahir
CCNA RS_ITN - Chapter 11
CCNA RS_ITN - Chapter 11
Irsandi Hasan
ITN_instructorPPT_Chapter1.pptx
ITN_instructorPPT_Chapter1.pptx
sirajmohammed35
Similar to CCNA4 Verson6 Chapter8
(20)
CCNA 3 - Troubleshooting the network
CCNA 3 - Troubleshooting the network
CCNA 1 Routing and Switching v5.0 Chapter 1
CCNA 1 Routing and Switching v5.0 Chapter 1
ITN6_Instructor_Materials_Chapter11.pdf
ITN6_Instructor_Materials_Chapter11.pdf
CCNA (R & S) Module 01 - Introduction to Networks - Chapter 11
CCNA (R & S) Module 01 - Introduction to Networks - Chapter 11
CCNAv5 - S1: Chapter11 It's A Network
CCNAv5 - S1: Chapter11 It's A Network
Chapter 11 : It’s a network
Chapter 11 : It’s a network
Chapter 11 - It’s a Network
Chapter 11 - It’s a Network
Itn instructor ppt_chapter1 - exploring the network
Itn instructor ppt_chapter1 - exploring the network
Itn instructor ppt_chapter1 exploring the network smartskills
Itn instructor ppt_chapter1 exploring the network smartskills
Ccna v5-S1-Chapter 11
Ccna v5-S1-Chapter 11
Ccna v5-S1-Chapter 1
Ccna v5-S1-Chapter 1
CCNAv5 - S4: Chapter 1 Hierarchical Network Design
CCNAv5 - S4: Chapter 1 Hierarchical Network Design
CCNA RS_ITN - Chapter 1
CCNA RS_ITN - Chapter 1
CCNAv5 - S1: Chapter 1 Exploring The Network
CCNAv5 - S1: Chapter 1 Exploring The Network
Itninstructorpptchapter1final 141024004546-conversion-gate02
Itninstructorpptchapter1final 141024004546-conversion-gate02
Chapter 1 : Exploring the Network
Chapter 1 : Exploring the Network
Chapter 01 - Exploring the Network
Chapter 01 - Exploring the Network
ITN_instructorPPT_Chapter1.pptx
ITN_instructorPPT_Chapter1.pptx
CCNA RS_ITN - Chapter 11
CCNA RS_ITN - Chapter 11
ITN_instructorPPT_Chapter1.pptx
ITN_instructorPPT_Chapter1.pptx
More from Chaing Ravuth
CCNP ROUTE V7 CH8
CCNP ROUTE V7 CH8
Chaing Ravuth
CCNP ROUTE V7 CH7
CCNP ROUTE V7 CH7
Chaing Ravuth
CCNP ROUTE V7 CH6
CCNP ROUTE V7 CH6
Chaing Ravuth
CCNP ROUTE V7 CH5
CCNP ROUTE V7 CH5
Chaing Ravuth
CCNP ROUTE V7 CH4
CCNP ROUTE V7 CH4
Chaing Ravuth
CCNP ROUTE V7 CH3
CCNP ROUTE V7 CH3
Chaing Ravuth
CCNP ROUTE V7 CH2
CCNP ROUTE V7 CH2
Chaing Ravuth
CCNP ROUTE V7 CH1
CCNP ROUTE V7 CH1
Chaing Ravuth
CCNP Switching Chapter 3
CCNP Switching Chapter 3
Chaing Ravuth
CCNP Switching Chapter 2
CCNP Switching Chapter 2
Chaing Ravuth
CCNP Switching Chapter 1
CCNP Switching Chapter 1
Chaing Ravuth
CCNP Switching Chapter 9
CCNP Switching Chapter 9
Chaing Ravuth
CCNP Switching Chapter 8
CCNP Switching Chapter 8
Chaing Ravuth
CCNP Switching Chapter 7
CCNP Switching Chapter 7
Chaing Ravuth
CCNP Switching Chapter 6
CCNP Switching Chapter 6
Chaing Ravuth
CCNP Switching Chapter 5
CCNP Switching Chapter 5
Chaing Ravuth
CCNP Switching Chapter 4
CCNP Switching Chapter 4
Chaing Ravuth
CCNA4 Verson6 Chapter4
CCNA4 Verson6 Chapter4
Chaing Ravuth
CCNA4 Verson6 Chapter3
CCNA4 Verson6 Chapter3
Chaing Ravuth
CCNA4 Verson6 Chapter2
CCNA4 Verson6 Chapter2
Chaing Ravuth
More from Chaing Ravuth
(20)
CCNP ROUTE V7 CH8
CCNP ROUTE V7 CH8
CCNP ROUTE V7 CH7
CCNP ROUTE V7 CH7
CCNP ROUTE V7 CH6
CCNP ROUTE V7 CH6
CCNP ROUTE V7 CH5
CCNP ROUTE V7 CH5
CCNP ROUTE V7 CH4
CCNP ROUTE V7 CH4
CCNP ROUTE V7 CH3
CCNP ROUTE V7 CH3
CCNP ROUTE V7 CH2
CCNP ROUTE V7 CH2
CCNP ROUTE V7 CH1
CCNP ROUTE V7 CH1
CCNP Switching Chapter 3
CCNP Switching Chapter 3
CCNP Switching Chapter 2
CCNP Switching Chapter 2
CCNP Switching Chapter 1
CCNP Switching Chapter 1
CCNP Switching Chapter 9
CCNP Switching Chapter 9
CCNP Switching Chapter 8
CCNP Switching Chapter 8
CCNP Switching Chapter 7
CCNP Switching Chapter 7
CCNP Switching Chapter 6
CCNP Switching Chapter 6
CCNP Switching Chapter 5
CCNP Switching Chapter 5
CCNP Switching Chapter 4
CCNP Switching Chapter 4
CCNA4 Verson6 Chapter4
CCNA4 Verson6 Chapter4
CCNA4 Verson6 Chapter3
CCNA4 Verson6 Chapter3
CCNA4 Verson6 Chapter2
CCNA4 Verson6 Chapter2
Recently uploaded
Organic Name Reactions for the students and aspirants of Chemistry12th.pptx
Organic Name Reactions for the students and aspirants of Chemistry12th.pptx
VS Mahajan Coaching Centre
How to Configure Email Server in Odoo 17
How to Configure Email Server in Odoo 17
Celine George
Full Stack Web Development Course for Beginners
Full Stack Web Development Course for Beginners
Sabitha Banu
Blooming Together_ Growing a Community Garden Worksheet.docx
Blooming Together_ Growing a Community Garden Worksheet.docx
UnboundStockton
Framing an Appropriate Research Question 6b9b26d93da94caf993c038d9efcdedb.pdf
Framing an Appropriate Research Question 6b9b26d93da94caf993c038d9efcdedb.pdf
UjwalaBharambe
9953330565 Low Rate Call Girls In Rohini Delhi NCR
9953330565 Low Rate Call Girls In Rohini Delhi NCR
9953056974 Low Rate Call Girls In Saket, Delhi NCR
Introduction to AI in Higher Education_draft.pptx
Introduction to AI in Higher Education_draft.pptx
pboyjonauth
POINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptx
POINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptx
Sayali Powar
Earth Day Presentation wow hello nice great
Earth Day Presentation wow hello nice great
YousafMalik24
Final demo Grade 9 for demo Plan dessert.pptx
Final demo Grade 9 for demo Plan dessert.pptx
AvyJaneVismanos
DATA STRUCTURE AND ALGORITHM for beginners
DATA STRUCTURE AND ALGORITHM for beginners
Sabitha Banu
Solving Puzzles Benefits Everyone (English).pptx
Solving Puzzles Benefits Everyone (English).pptx
OH TEIK BIN
AmericanHighSchoolsprezentacijaoskolama.
AmericanHighSchoolsprezentacijaoskolama.
arsicmarija21
Model Call Girl in Tilak Nagar Delhi reach out to us at 🔝9953056974🔝
Model Call Girl in Tilak Nagar Delhi reach out to us at 🔝9953056974🔝
9953056974 Low Rate Call Girls In Saket, Delhi NCR
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
9953056974 Low Rate Call Girls In Saket, Delhi NCR
Meghan Sutherland In Media Res Media Component
Meghan Sutherland In Media Res Media Component
InMediaRes1
Painted Grey Ware.pptx, PGW Culture of India
Painted Grey Ware.pptx, PGW Culture of India
Virag Sontakke
Capitol Tech U Doctoral Presentation - April 2024.pptx
Capitol Tech U Doctoral Presentation - April 2024.pptx
CapitolTechU
Employee wellbeing at the workplace.pptx
Employee wellbeing at the workplace.pptx
NirmalaLoungPoorunde1
Introduction to ArtificiaI Intelligence in Higher Education
Introduction to ArtificiaI Intelligence in Higher Education
pboyjonauth
Recently uploaded
(20)
Organic Name Reactions for the students and aspirants of Chemistry12th.pptx
Organic Name Reactions for the students and aspirants of Chemistry12th.pptx
How to Configure Email Server in Odoo 17
How to Configure Email Server in Odoo 17
Full Stack Web Development Course for Beginners
Full Stack Web Development Course for Beginners
Blooming Together_ Growing a Community Garden Worksheet.docx
Blooming Together_ Growing a Community Garden Worksheet.docx
Framing an Appropriate Research Question 6b9b26d93da94caf993c038d9efcdedb.pdf
Framing an Appropriate Research Question 6b9b26d93da94caf993c038d9efcdedb.pdf
9953330565 Low Rate Call Girls In Rohini Delhi NCR
9953330565 Low Rate Call Girls In Rohini Delhi NCR
Introduction to AI in Higher Education_draft.pptx
Introduction to AI in Higher Education_draft.pptx
POINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptx
POINT- BIOCHEMISTRY SEM 2 ENZYMES UNIT 5.pptx
Earth Day Presentation wow hello nice great
Earth Day Presentation wow hello nice great
Final demo Grade 9 for demo Plan dessert.pptx
Final demo Grade 9 for demo Plan dessert.pptx
DATA STRUCTURE AND ALGORITHM for beginners
DATA STRUCTURE AND ALGORITHM for beginners
Solving Puzzles Benefits Everyone (English).pptx
Solving Puzzles Benefits Everyone (English).pptx
AmericanHighSchoolsprezentacijaoskolama.
AmericanHighSchoolsprezentacijaoskolama.
Model Call Girl in Tilak Nagar Delhi reach out to us at 🔝9953056974🔝
Model Call Girl in Tilak Nagar Delhi reach out to us at 🔝9953056974🔝
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
call girls in Kamla Market (DELHI) 🔝 >༒9953330565🔝 genuine Escort Service 🔝✔️✔️
Meghan Sutherland In Media Res Media Component
Meghan Sutherland In Media Res Media Component
Painted Grey Ware.pptx, PGW Culture of India
Painted Grey Ware.pptx, PGW Culture of India
Capitol Tech U Doctoral Presentation - April 2024.pptx
Capitol Tech U Doctoral Presentation - April 2024.pptx
Employee wellbeing at the workplace.pptx
Employee wellbeing at the workplace.pptx
Introduction to ArtificiaI Intelligence in Higher Education
Introduction to ArtificiaI Intelligence in Higher Education
CCNA4 Verson6 Chapter8
1.
© 2008 Cisco
Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 1 Instructor Materials Chapter 8: Network Troubleshooting CCNA Routing and Switching Connecting Networks
2.
Presentation_ID 7© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Chapter 8: Best Practices Prior to teaching Chapter 8, the instructor should: Complete Chapter 8 Assessment. This chapter has many troubleshooting activities that the student should complete. Some are listed as optional. However, if any of your students are planning to take the CCNA exam, they should complete all the activities. Review the Network Evolution chapter.
3.
© 2008 Cisco
Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 10 Chapter 8: Network Troubleshooting Connecting Networks
4.
Presentation_ID 11© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Chapter 8 - Sections & Objectives 8.1 Troubleshooting Methodology • Explain troubleshooting approaches for various network problems. 8.2 Troubleshooting Scenarios • Troubleshoot end-to-end connectivity in a small to medium-sized business network, using a systematic approach.
5.
© 2008 Cisco
Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 12 8.1 Troubleshooting Methodology
6.
Presentation_ID 13© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Methodology Network Documentation Documentation is critical to being able to monitor and troubleshoot a network. Documentation includes: • Configuration files, including network configuration files and end-system configuration files • Physical and logical topology diagrams • A baseline performance levels
7.
Presentation_ID 14© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Methodology Network Documentation To establish and capture an initial network baseline, perform the following steps: • Step 1. Determine what types of data to collect. • Step 2. Identify devices and ports of interest. • Step 3. Determine the baseline duration.
8.
Presentation_ID 15© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Common Cisco IOS commands used for data collection. Manual collection of data should be reserved for smaller networks or limited to mission-critical network devices. Sophisticated network management software is typically used to baseline large and complex networks. Troubleshooting Methodology Network Documentation
9.
Presentation_ID 16© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Methodology Troubleshooting Process
10.
Presentation_ID 17© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Methodology Troubleshooting Process Common Cisco IOS commands used to gather the symptoms of a network problem.
11.
Presentation_ID 18© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Methodology Isolating the Issue Using Layered Models After gathering symptoms, the network administrator compares the characteristics of the problem to the logical layers of the network to isolate and solve the issue.
12.
Presentation_ID 19© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Methodology Isolating the Issue Using Layered Models Using the layered models, there are three primary methods for troubleshooting networks: • Bottom-up • Top-down • Divide-and-conquer
13.
© 2008 Cisco
Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 20 8.2 Troubleshooting Scenarios
14.
Presentation_ID 21© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Scenarios Using IP SLA Cisco IP Service Level Agreements (SLA) generate traffic to measure network performance. Additional benefits include: • SLA monitoring, measurement, and verification • Measure the jitter, latency, or packet loss in the network • IP service network health assessment • Edge-to-edge network availability
15.
Presentation_ID 22© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Scenarios Using IP SLA IP SLA ICMP Echo Configuration
16.
Presentation_ID 23© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Scenarios Using IP SLA Verifying IP SLA Configuration
17.
Presentation_ID 24© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Scenarios Troubleshooting Tools Common software troubleshooting tools include: • Network Management System Tools include device-level monitoring, configuration, and fault-management tools. These tools can be used to investigate and correct network problems. • Knowledge Bases from device vendors, combined with Internet search engines like Google, are used by network administrators to access a vast pool of experience-based information. • Tools & Resources at http://www.cisco.com provide information on Cisco-related hardware and software. • Baselining Tools can draw network diagrams, help keep network software and hardware documentation up-to-date, and help to cost-effectively measure baseline network bandwidth use. • Protocol Analyzers are useful to investigate packet content while flowing through the network.
18.
Presentation_ID 25© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Scenarios Troubleshooting Tools Common hardware troubleshooting tools include: • Digital Multimeters are test instruments that are used to directly measure electrical values of voltage, current, and resistance. • Cable Testers are specialized, handheld devices designed for testing the various types of data communication cabling. These devices send signals along the cable and wait for them to be reflected. The time between sending the signal and receiving it back is converted into a distance measurement. • Cable Analyzers are multifunctional handheld devices that are used to test and certify copper and fiber cables for different services and standards. • Portable Network Analyzers can be plugged in anywhere in the network and used for troubleshooting. • Network Analysis Module can capture and decode packets and track response times to pinpoint an application problem to a particular network or server.
19.
Presentation_ID 26© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Scenarios Symptoms and Causes of Network Troubleshooting Physical Layer Troubleshooting
20.
Presentation_ID 27© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Scenarios Symptoms and Causes of Network Troubleshooting Data Link Layer Troubleshooting
21.
Presentation_ID 28© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Scenarios Symptoms and Causes of Network Troubleshooting Network Layer Troubleshooting
22.
Presentation_ID 29© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Scenarios Symptoms and Causes of Network Troubleshooting Transport Layer Troubleshooting
23.
Presentation_ID 30© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Scenarios Symptoms and Causes of Network Troubleshooting Application Layer Troubleshooting
24.
Presentation_ID 31© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Troubleshooting Scenarios Troubleshooting IP Connectivity Common bottom-up troubleshooting steps for end-to- end connectivity: • Step 1. Check physical connectivity • Step 2. Check for duplex mismatches. • Step 3. Check data link and network layer addressing. • Step 4. Verify that the default gateway is correct. • Step 5. Ensure that devices are determining the correct path from the source to the destination. • Step 6. Verify the transport layer is functioning properly. • Step 7. Verify that there are no ACLs blocking traffic. • Step 8. Ensure that DNS settings are correct.
25.
© 2008 Cisco
Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 32 8.3 Chapter Summary
26.
Presentation_ID 33© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential Chapter Summary Summary For network administrators to be able to monitor and troubleshoot a network, they must have a complete set of accurate and current network documentation, including configuration files, physical and logical topology diagrams, and a baseline performance level. The three major stages to troubleshooting problems are gather symptoms, isolate the problem, then correct the problem. The OSI model or the TCP/IP model can be applied to a network problem. A network administrator can use the bottom-up method, the top-down method, or the divide-and-conquer method. Common software tools that can help with troubleshooting include network management system tools, knowledge bases, baselining tools, host-based protocol analyzers, and Cisco IOS EPC. Hardware troubleshooting tools include a NAM, digital multimeters, cable testers, cable analyzers, and portable network analyzers. Cisco IOS log information can also be used to identify potential problems. There are characteristic physical layer, data link layer, network layer, transport layer, and application layer symptoms and problems of which the network administrator should be aware. The administrator may need to pay particular attention to physical connectivity, default gateways, MAC address tables, NAT, and routing information.
27.
Presentation_ID 34© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential
28.
Presentation_ID 35© 2008
Cisco Systems, Inc. All rights reserved. Cisco Confidential
Download now