Fix Mininet Topology & Routing

I'm facing challenges with a Mininet setup that I've customized. Here's what I need from the freelancer ready to tackle this project:

- **Diagnose Connectivity Issues:**
- Unable to ping between hosts in my complex, custom-designed topology.

- **Routing Implementation Guidance:**
- Need step-by-step assistance on setting up a routing algorithm within this topology.

**Requirements for the ideal freelancer:**

- **Experience with Mininet:** Proven background in working with Mininet under Linux.
- **Networking Knowledge:** Solid understanding of network topologies and routing protocols.
- **Problem-Solving Skills:** Ability to troubleshoot and resolve connectivity issues efficiently.
- **Communication:** Clear explanatory skills to provide implementation guidance.

**Nice-to-haves:**

- Familiarity with advanced Mininet features and customization.
- Contributions to open-source networking projects.

Time is of the essence, and I'm eager to get my topology functioning with your expertise.