A deep dive into Spanning Tree Protocol on Cisco IOS-XE: how STP and RSTP work, how to configure Root Bridge priority, PortFast, BPDUGuard, Root Guard, Loop Guard, and UDLD, and how to troubleshoot the most common STP failure scenarios in production networks.
A practical deep dive into Spanning Tree Protocol and RSTP on Cisco IOS-XE. Covers root bridge election, PortFast, BPDU Guard, Root Guard, Loop Guard, Bridge Assurance, TCN storm troubleshooting, and Catalyst 9000 gotchas with real show command output.
A sharp technical breakdown of how ZK-rollups work, where the major zkEVMs stand in 2026, what it actually costs to transact on each, and why this matters for every serious DeFi participant.
A technical deep dive into zero-knowledge proofs — what SNARKs and STARKs are, how they differ, and why they’re now the backbone of blockchain scaling, privacy, and DeFi compliance in 2026.
A clear breakdown of Ethereum Layer 2 solutions — how rollups work, and a deep dive into Arbitrum, Optimism, and Base.
