This list covers some of the known problems with Thunderbird 3.1. Please read this before reporting any new bugs.
- Your passwords are stored in a new location. If you go back to using Thunderbird 2, or switch back and forth between Thunderbird 3.1 and Thunderbird 2, your password lists do not get updated.
- Extended columns in the folder pane were removed in Thunderbird 3. There is an add-on that restores this functionality. You can also install this add-on using the Migration Assistant.
- The compact header view was removed in Thunderbird 3 (Bug 480623); see this blog entry for details. There is an add-on that offers similar functionality. You can install this add-on using the Migration Assistant.
- Thunderbird 3.1 requires that extensions either come from a secure server using the HTTPS protocol or are digitally signed, or they will fail to install.
- If using SSL or TLS, and the certificate that comes from the server is self-signed, expired, or has a domain that does not match the server domain, a dialog will be shown asking if Thunderbird should permanently make an exception for the cert. This should only be done if the error is understood.
- If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (Bug 531397)
- In some cases, using 'Save As Template' from the File menu may not work. You can still Save As Template from the email Compose window or drag the message into the Template folder. (Bug 532050)
- Smart Folders has been renamed to Unified Folders and can now be edited.
- Plugins will no longer show in add-on manager as they have now been globally disabled due to performance issues. Mozilla Messaging does not recommend enabling plugins due to possible security issues.
Free Architectural CAD drawings and blocks for download in dwg or pdf file formats for designing with AutoCAD and other 2D and 3D modeling software. By downloading and using any ARCAT CAD detail content you agree to the following license agreement. This International Standard proposes a well-defined QMS, based on a framework that integrates established fundamental concepts, principles, processes and resources related to quality, in order to help organizations realize their objectives. It is applicable to all organizations, regardless of size, complexity or business model. Its aim is to.
- The keyboard shortcut for 'Mark All Read' has changed from Ctrl+Shift+C to Shift+C.
- If you are using the Kaspersky Anti-Spam Extension from Kaspersky Internet Suite 2010, it is disabled in Thunderbird 3.1 (Bug 533692)
- If you are using the Kaspersky Anti-Spam Extension from Kaspersky Internet Suite 2011, issues within the Kaspersky Software may cause it to be broken with this update. We are working with Kaspersky to resolve the issue.
Last Updated on by
3.1.1.5 Packet Tracer – Examining a Redundant Design
From year to year, Cisco has updated many versions with difference questions. The latest version is version 6.0 in 2018. What is your version? It depends on your instructor creating your class. We recommend you to go thought all version if you are not clear. While you take online test with netacad.com, You may get random questions from all version. Each version have 1 to 10 different questions or more. After you review all questions, You should practice with our online test system by go to 'Online Test' link below.
| Version 5.02 | Version 5.03 | Version 6.0 | Online Assessment |
| Chapter 3 Exam | Chapter 3 Exam | Chapter 3 Exam | Online Test |
| Next Chapter | |||
| Chapter 4 Exam | Chapter 4 Exam | Chapter 4 Exam | Online Test |
| Lab Activities | |||
| 3.1.1.5 Packet Tracer – Examining a Redundant Design | |||
| 3.3.1.5 Packet Tracer – Configuring PVST | |||
| 3.3.2.2 Packet Tracer – Configuring Rapid PVST | |||
Packet Tracer – Examining a Redundant Design (Answer Version)
Answer Note: Red font color or Gray highlights indicate text that appears in the Answer copy only.
Topology
3.1.1.5 Packet Tracer – Examining a Redundant Design
Objectives
Part 1: Check for STP Convergence
Part 2: Examine the ARP Process
Memoranda 1.1 download. Memoranda is a straightforward and intuitive program designed to be a personal organizer that helps create and manage all your events, tasks, and agenda. DOWNLOAD Memoranda 1.0-RC3.1-20070407.
Part 3: Test Redundancy in a Switched Network
Background
In this activity, you will observe how STP operates, by default, and how it reacts when faults occur. Switches have been added to the network “out of the box”. Cisco switches can be connected to a network without any additional action required by the network administrator. For the purpose of this activity, the bridge priority was modified.
Part 1: Check for STP Convergence
When STP is fully converged, the following conditions exist:
- All PCs have green link lights on the switched ports.
- Access layer switches have one forwarding uplink (green link) to a distribution layer switch and a blocking uplink (amber link) to a second distribution layer switch.
- Distribution layer switches have one forwarding uplink (green link) to a core layer switch and a blocking uplink (amber link) to another core layer switch.
Part 2: Examine the ARP Process
Step 1: Switch to Simulation mode.
Step 2: Ping from PC1 to PC6.
- Use the Add Simple PDU tool to create a PDU from PC1 to PC6. Verify that ARP and ICMP are selected in the Event List Filters. Click Capture/Forward to examine the ARP process as the switched network learns the MAC addresses of PC1 and PC6. Notice that all possible loops are stopped by blocking ports. For example, the ARP request from PC1 travels from A1 to D2 to C1 to D1 and then back to A1. However, because STP is blocking the link between A1 and D1, no loop occurs.
- Notice that the ARP reply from PC6 travels back along one path. Why? It is the only valid path when STP is blocking the redundant links.
- Record the loop-free path between PC1 and PC6. PC1 > A1 > D2 > C1 > D3 > A6 > PC6
Step 3: Examine the ARP process again.
- Below the Scenario 0 drop-down list, click New to create Scenario 1. Examine the ARP process again by pinging between two different PCs.
- What part of the path changed from the last set of pings? Answers may vary depending on which PC students ping from.
Part 3: Test Redundancy in a Switched Network
Step 1: Delete the link between A1 and D2.
Switch to Realtime mode. Delete the link between A1 and D2. It takes some time for STP to converge and establish a new, loop-free path. Because only A1 is affected, watch for the amber light on the link between A1 and D1 to change to green. You can click Fast Forward Time to accelerate the STP convergence process.
Step 2: Ping between PC1 and PC6.
- After the link between A1 and D1 is active (indicated by a green light), switch to Simulation mode and create Scenario 2. Ping between PC1 and PC6 again.
- Record the new loop-free path. PC1 > A1 > D1 > C1 > D3 > A6 > PC6
Step 3: Delete link between C1 and D3.
- Switch to Realtime mode. Notice that the links between D3 and D4 to C2 are amber. Delete the link between C1 and D3. It takes some time for STP to converge and establish a new, loop-free path. Watch the amber links on D3 and D4. You can click Fast Forward Time to accelerate the STP convergence process.
- Which link is now the active link to C2? Link between D3 F0/1 to C2 F0/2
Step 4: Ping between PC1 and PC6.
- Switch to Simulation mode and create Scenario 3. Ping between PC1 and PC6.
- Record the new loop-free path. PC1 > A1 > D1 > C1 > D4 > A6 > PC6
Step 5: Delete D4.
Switch to Realtime mode. Notice that A4, A5, and A6 are all forwarding traffic to D4. Delete D4. It takes some time for STP to converge and establish a new, loop-free path. Watch for the links between A4, A5, and A6 to D3 transition to forwarding (green). All three switches should now be forwarding to D3.
Step 6: Ping between PC1 and PC6.
- Switch to Simulation mode and create Scenario 4. Ping between PC1 and PC6.
- Record the new loop-free path. PC1 > A1 > D1 > C1 > C2 > D3 > A6 > PC6
- What is unique about the new path that you have not seen before?D3 is now the designated switch for packet forwarding if PC1 would like to ping PC6, no redundant path below C2.
Step 7: Delete C1.
Switch to Realtime mode. Notice that D1 and D2 are both forwarding traffic to C1. Delete C1. It takes some time for STP to converge and establish a new, loop-free path. Watch for the links between D1 and D2 to C2 to transition to forwarding (green). Once converged, both switches should now be forwarding to C2.
Step 8: Ping between PC1 and PC6.
- Switch to Simulation mode and create Scenario 5. Ping between PC1 and PC6.
- Record the new loop-free path.PC1 > A1 > D1 > C2 > D3 > A6 > PC6
Suggested Scoring Rubric
| Activity Section | Question Location | Possible Points | Earned Points |
| Part 2: Examine the ARP Process | Step 2b | 5 | |
| Step 2c | 15 | ||
| Step 3 | 5 | ||
| Part 2 Total | 25 | ||
| Part 3: Test Redundancy in a Switched Network | Step 2 | 15 | |
| Step 3 | 5 | ||
| Step 4 | 15 | ||
| Step 6b | 15 | ||
| Step 6c | 10 | ||
| Step 8 | 15 | ||
| Part 3 Total | 75 | ||
| Total Score | 100 | ||
From year to year, Cisco has updated many versions with difference questions. The latest version is version 6.0 in 2018. What is your version? It depends on your instructor creating your class. We recommend you to go thought all version if you are not clear. While you take online test with netacad.com, You may get random questions from all version. Each version have 1 to 10 different questions or more. After you review all questions, You should practice with our online test system by go to 'Online Test' link below.
| Version 5.02 | Version 5.03 | Version 6.0 | Online Assessment |
| Chapter 3 Exam | Chapter 3 Exam | Chapter 3 Exam | Online Test |
| Next Chapter | |||
| Chapter 4 Exam | Chapter 4 Exam | Chapter 4 Exam | Online Test |
| Lab Activities | |||
| 3.1.1.5 Packet Tracer – Examining a Redundant Design | |||
| 3.3.1.5 Packet Tracer – Configuring PVST | |||
| 3.3.2.2 Packet Tracer – Configuring Rapid PVST | |||
- Author: admin
- Category: Category
This list covers some of the known problems with Thunderbird 3.1. Please read this before reporting any new bugs.
- Your passwords are stored in a new location. If you go back to using Thunderbird 2, or switch back and forth between Thunderbird 3.1 and Thunderbird 2, your password lists do not get updated.
- Extended columns in the folder pane were removed in Thunderbird 3. There is an add-on that restores this functionality. You can also install this add-on using the Migration Assistant.
- The compact header view was removed in Thunderbird 3 (Bug 480623); see this blog entry for details. There is an add-on that offers similar functionality. You can install this add-on using the Migration Assistant.
- Thunderbird 3.1 requires that extensions either come from a secure server using the HTTPS protocol or are digitally signed, or they will fail to install.
- If using SSL or TLS, and the certificate that comes from the server is self-signed, expired, or has a domain that does not match the server domain, a dialog will be shown asking if Thunderbird should permanently make an exception for the cert. This should only be done if the error is understood.
- If you are unable to view content for your RSS feeds in the Wide View Layout, you may need to disable the Lightning Calendar add-on if you have it installed or switch to Classic View and restart Thunderbird. (Bug 531397)
- In some cases, using 'Save As Template' from the File menu may not work. You can still Save As Template from the email Compose window or drag the message into the Template folder. (Bug 532050)
- Smart Folders has been renamed to Unified Folders and can now be edited.
- Plugins will no longer show in add-on manager as they have now been globally disabled due to performance issues. Mozilla Messaging does not recommend enabling plugins due to possible security issues.
Free Architectural CAD drawings and blocks for download in dwg or pdf file formats for designing with AutoCAD and other 2D and 3D modeling software. By downloading and using any ARCAT CAD detail content you agree to the following license agreement. This International Standard proposes a well-defined QMS, based on a framework that integrates established fundamental concepts, principles, processes and resources related to quality, in order to help organizations realize their objectives. It is applicable to all organizations, regardless of size, complexity or business model. Its aim is to.
- The keyboard shortcut for 'Mark All Read' has changed from Ctrl+Shift+C to Shift+C.
- If you are using the Kaspersky Anti-Spam Extension from Kaspersky Internet Suite 2010, it is disabled in Thunderbird 3.1 (Bug 533692)
- If you are using the Kaspersky Anti-Spam Extension from Kaspersky Internet Suite 2011, issues within the Kaspersky Software may cause it to be broken with this update. We are working with Kaspersky to resolve the issue.
Last Updated on by
3.1.1.5 Packet Tracer – Examining a Redundant Design
From year to year, Cisco has updated many versions with difference questions. The latest version is version 6.0 in 2018. What is your version? It depends on your instructor creating your class. We recommend you to go thought all version if you are not clear. While you take online test with netacad.com, You may get random questions from all version. Each version have 1 to 10 different questions or more. After you review all questions, You should practice with our online test system by go to 'Online Test' link below.
| Version 5.02 | Version 5.03 | Version 6.0 | Online Assessment |
| Chapter 3 Exam | Chapter 3 Exam | Chapter 3 Exam | Online Test |
| Next Chapter | |||
| Chapter 4 Exam | Chapter 4 Exam | Chapter 4 Exam | Online Test |
| Lab Activities | |||
| 3.1.1.5 Packet Tracer – Examining a Redundant Design | |||
| 3.3.1.5 Packet Tracer – Configuring PVST | |||
| 3.3.2.2 Packet Tracer – Configuring Rapid PVST | |||
Packet Tracer – Examining a Redundant Design (Answer Version)
Answer Note: Red font color or Gray highlights indicate text that appears in the Answer copy only.
Topology
3.1.1.5 Packet Tracer – Examining a Redundant Design
Objectives
Part 1: Check for STP Convergence
Part 2: Examine the ARP Process
Memoranda 1.1 download. Memoranda is a straightforward and intuitive program designed to be a personal organizer that helps create and manage all your events, tasks, and agenda. DOWNLOAD Memoranda 1.0-RC3.1-20070407.
Part 3: Test Redundancy in a Switched Network
Background
In this activity, you will observe how STP operates, by default, and how it reacts when faults occur. Switches have been added to the network “out of the box”. Cisco switches can be connected to a network without any additional action required by the network administrator. For the purpose of this activity, the bridge priority was modified.
Part 1: Check for STP Convergence
When STP is fully converged, the following conditions exist:
- All PCs have green link lights on the switched ports.
- Access layer switches have one forwarding uplink (green link) to a distribution layer switch and a blocking uplink (amber link) to a second distribution layer switch.
- Distribution layer switches have one forwarding uplink (green link) to a core layer switch and a blocking uplink (amber link) to another core layer switch.
Part 2: Examine the ARP Process
Step 1: Switch to Simulation mode.
Step 2: Ping from PC1 to PC6.
- Use the Add Simple PDU tool to create a PDU from PC1 to PC6. Verify that ARP and ICMP are selected in the Event List Filters. Click Capture/Forward to examine the ARP process as the switched network learns the MAC addresses of PC1 and PC6. Notice that all possible loops are stopped by blocking ports. For example, the ARP request from PC1 travels from A1 to D2 to C1 to D1 and then back to A1. However, because STP is blocking the link between A1 and D1, no loop occurs.
- Notice that the ARP reply from PC6 travels back along one path. Why? It is the only valid path when STP is blocking the redundant links.
- Record the loop-free path between PC1 and PC6. PC1 > A1 > D2 > C1 > D3 > A6 > PC6
Step 3: Examine the ARP process again.
- Below the Scenario 0 drop-down list, click New to create Scenario 1. Examine the ARP process again by pinging between two different PCs.
- What part of the path changed from the last set of pings? Answers may vary depending on which PC students ping from.
Part 3: Test Redundancy in a Switched Network
Step 1: Delete the link between A1 and D2.
Switch to Realtime mode. Delete the link between A1 and D2. It takes some time for STP to converge and establish a new, loop-free path. Because only A1 is affected, watch for the amber light on the link between A1 and D1 to change to green. You can click Fast Forward Time to accelerate the STP convergence process.
Step 2: Ping between PC1 and PC6.
- After the link between A1 and D1 is active (indicated by a green light), switch to Simulation mode and create Scenario 2. Ping between PC1 and PC6 again.
- Record the new loop-free path. PC1 > A1 > D1 > C1 > D3 > A6 > PC6
Step 3: Delete link between C1 and D3.
- Switch to Realtime mode. Notice that the links between D3 and D4 to C2 are amber. Delete the link between C1 and D3. It takes some time for STP to converge and establish a new, loop-free path. Watch the amber links on D3 and D4. You can click Fast Forward Time to accelerate the STP convergence process.
- Which link is now the active link to C2? Link between D3 F0/1 to C2 F0/2
Step 4: Ping between PC1 and PC6.
- Switch to Simulation mode and create Scenario 3. Ping between PC1 and PC6.
- Record the new loop-free path. PC1 > A1 > D1 > C1 > D4 > A6 > PC6
Step 5: Delete D4.
Switch to Realtime mode. Notice that A4, A5, and A6 are all forwarding traffic to D4. Delete D4. It takes some time for STP to converge and establish a new, loop-free path. Watch for the links between A4, A5, and A6 to D3 transition to forwarding (green). All three switches should now be forwarding to D3.
Step 6: Ping between PC1 and PC6.
- Switch to Simulation mode and create Scenario 4. Ping between PC1 and PC6.
- Record the new loop-free path. PC1 > A1 > D1 > C1 > C2 > D3 > A6 > PC6
- What is unique about the new path that you have not seen before?D3 is now the designated switch for packet forwarding if PC1 would like to ping PC6, no redundant path below C2.
Step 7: Delete C1.
Switch to Realtime mode. Notice that D1 and D2 are both forwarding traffic to C1. Delete C1. It takes some time for STP to converge and establish a new, loop-free path. Watch for the links between D1 and D2 to C2 to transition to forwarding (green). Once converged, both switches should now be forwarding to C2.
Step 8: Ping between PC1 and PC6.
- Switch to Simulation mode and create Scenario 5. Ping between PC1 and PC6.
- Record the new loop-free path.PC1 > A1 > D1 > C2 > D3 > A6 > PC6
Suggested Scoring Rubric
| Activity Section | Question Location | Possible Points | Earned Points |
| Part 2: Examine the ARP Process | Step 2b | 5 | |
| Step 2c | 15 | ||
| Step 3 | 5 | ||
| Part 2 Total | 25 | ||
| Part 3: Test Redundancy in a Switched Network | Step 2 | 15 | |
| Step 3 | 5 | ||
| Step 4 | 15 | ||
| Step 6b | 15 | ||
| Step 6c | 10 | ||
| Step 8 | 15 | ||
| Part 3 Total | 75 | ||
| Total Score | 100 | ||
From year to year, Cisco has updated many versions with difference questions. The latest version is version 6.0 in 2018. What is your version? It depends on your instructor creating your class. We recommend you to go thought all version if you are not clear. While you take online test with netacad.com, You may get random questions from all version. Each version have 1 to 10 different questions or more. After you review all questions, You should practice with our online test system by go to 'Online Test' link below.
| Version 5.02 | Version 5.03 | Version 6.0 | Online Assessment |
| Chapter 3 Exam | Chapter 3 Exam | Chapter 3 Exam | Online Test |
| Next Chapter | |||
| Chapter 4 Exam | Chapter 4 Exam | Chapter 4 Exam | Online Test |
| Lab Activities | |||
| 3.1.1.5 Packet Tracer – Examining a Redundant Design | |||
| 3.3.1.5 Packet Tracer – Configuring PVST | |||
| 3.3.2.2 Packet Tracer – Configuring Rapid PVST | |||