Cheaper switches don’t automatically mean a cheaper network. A framework for evaluating SONiC TCO — staffing, tooling, scale thresholds, and organizational readiness at the enterprise edge.

Commodity 1G switching hardware now runs SONiC. For enterprises managing tens of thousands of network nodes, the economics of open networking at the access layer are worth a serious look.

Using Scapy to dynamically build and test ISAKMP packets with Python — automating VPN connectivity testing at scale.

Deep dive into constructing ISAKMP packets byte-by-byte using hex editors and netcat, building each header field from the RFC specification.

Using pre-built hex packets with netcat to test ISAKMP Phase 1 negotiations against Cisco ASA and other VPN endpoints.

Learn how CiscoConfParse makes parsing Cisco configurations straightforward by understanding parent/child relationships - no more complex regex patterns needed.

How I migrated network-notes.com from self-hosted WordPress on DigitalOcean to Hugo on Cloudflare Pages