Lab Objective:
The focus of this lab is to hone your trouble isolation and resolution skills. This lab will include Layer 2 and Layer 3 technologies which fall within the scope of the current CCNP curriculum.
Lab Topology:
The lab network topology is illustrated below:
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IMPORTANT NOTE If you are using the www.howtonetwork.net racks, please download and paste the troubleshooting lab configurations. If you are using your own rack or lab, please modify this configuration to reflect the actual interface types, etc, that you have on your devices. Prior to beginning all labs, apply the pre-lab configuration for each individual device. When completing these labs, it is important to resolve the trouble tickets in the order in which they are listed because they build on each other. For example, if you begin with Trouble Ticket # 3, you might not get the expected resolution or result if you have not completed Trouble Ticket # 1 and Trouble Ticket # 2. It is very important to follow the order listed. |
Trouble Ticket # 1
You have received a call from Level 1 support indicating that following some scheduled changes, they have lost connectivity to router R2. Troubleshoot and resolve this issue.
Trouble Ticket # 2
Users are complaining about excessive latency between the 150.1.1.0/24 and 150.3.3.0/24 subnet. Previously, this traffic was load-shared across R2 because of the low-bandwidth 512Kbps connecting R1 and R3. Troubleshoot and resolve this issue.
Trouble Ticket # 3
You have received several complaints that the NOC is unable to reach some Loopback subnets configured on R1 from the other routers. Management has forbidden the modification of the EIGRP configuration on R1. With this restriction in mind, troubleshoot and resolve this issue.
Trouble Ticket # 4
You have received an urgent call from the NOC stating that while they were troubleshooting TCP connectivity issues between the 150.4.4.0/24 and 150.1.1.0/24 subnets they lost all connectivity to R4. Troubleshoot and resolve this issue.