Developer
The Great Certificate Size Explosion – IPsec Series, Part 7
Hands-on with OpenSSL 3.5: we generate classical and post-quantum certificates and weigh them side by side. Then we sign, verify, and tamper.
Build agentic networking experiences with Meraki and Catalyst Center MCP servers
Use Cisco's beta Meraki and Catalyst Center MCP servers to bring supported, read-only network data into the AI agents and applications you build.
Who Goes There? Post-Quantum Authentication – IPsec Series, Part 6
Auth is the other pillar, with a sneakier quantum deadline: a live signature need only resist forgery until it's verified, but long-lived trust anchors and slow PKI migration mean roots must go quantum-safe early. We meet ML-DSA and SLH-DSA
Beyond the Protocol: Applying API Engineering Practices to MCP Servers
Cisco DevNet applies API engineering practices, such as versioning, linting, changelogs, documentation, to MCP servers with a new format: MCP Description.
A Different Road to Quantum Safety: The PPK – IPsec Series, Part 5
A second road to quantum safety: a Postquantum Preshared Key mixes an out-of-band secret into the IKE key schedule that never travels the wire, so even a classical handshake resists "harvest now, decrypt later," on gear not supporting ML-KEM.
Watch a Hybrid Post-Quantum Handshake on the Wire – IPsec Series, Part 4
We build a real hybrid IKEv2 tunnel in two Docker containers, capture the packets, and run classical versus hybrid side by side, seeing the extra round trip, ML-KEM fragmentation, and that going quantum-safe costs almost nothing.
ML-KEM vs Diffie-Hellman: The Showdown – IPsec Series, Part 3
We put Diffie-Hellman and ML-KEM side by side on size, latency, compute, and security, and land on the smartest move: a hybrid key exchange that runs both and combines their secrets, so an attacker would have to break both at once.
Harvest Now, Decrypt Later: The Threat to Key Exchange – IPsec Series, Part 2
We zoom in on key exchange and its urgent "harvest now, decrypt later" threat, where attackers record encrypted traffic today to decrypt once quantum hardware matures. Then we meet the two contenders: classical Diffie-Hellman and post-quantum ML-KEM.
Beyond CMDB Sync: Cisco Catalyst Center for ITSM Workflows
Discover how Cisco Catalyst Center 3.2.1 enhances ServiceNow CMDB integration with Granular Stack Switch Synchronization. Improve asset visibility, streamline ITSM workflows, and automate lifecycle management today.


















