intermediate·20 min·Paid

Slow, Not Broken

Diagnose a link that is up, passing traffic, and unusable - then route around it.

Scenario

The branch office reports that the application has become painfully slow over the last week. Nothing is down, every page eventually loads, and the previous engineer confirmed the server is healthy and the link is up. Traffic currently takes the direct circuit to the data centre; a second path exists through the transit site. Find out what is wrong with the direct path and get the branch onto something usable.

Learning objectives

latency
packet loss
path selection
static routes
troubleshooting

Topology and configuration

This environment contains 5 devices (2 Hosts, 3 Routers). You configure and troubleshoot the networking skills listed above.

Curriculum topics

Routing

Routing Protocols in Depth / Slow, Not Broken

Environment

Subnetica labs run FRRouting and Linux networking with Cisco-like syntax, not Cisco IOS. Commands and behavior may differ from Cisco devices.

Addressing is regenerated on every attempt and the environment is graded automatically.

Certification objectives

· Objective
· Objective