Running Routing Protocols over Tunnels
James explores a confusing statement from Hannes Gredler's IS-IS book about the potential network issues caused by improper IGP cost configurations over tunnels.
MAIN POINTS
- Hannes Gredler's statement highlights risks of incorrect IGP cost settings.
- Tunnels can cause network instability if not configured properly.
- Understanding why tunnels are needed is crucial for network design.
- Improper tunnel configuration may lead to network meltdown.
TAKEAWAYS
- Proper IGP cost configuration is essential to prevent network issues.
- Tunnels should be carefully designed to avoid self-wrapping.
- Network stability depends on correct topology cost management.
- Awareness of potential tunnel-related problems is vital for network engineers.