Python and Netmiko remain practical tools for Cisco IOS XE automation when the task is fundamentally CLI-oriented: collect show-command output, make a controlled configuration change, […]
Cisco Certifications
Cisco 300-435: NETCONF vs RESTCONF on Cisco IOS XE
NETCONF and RESTCONF give Cisco IOS XE automation structured access to configuration and operational state defined by YANG models. They solve many of the problems […]
Cisco 300-435: Automating Catalyst Center, SD-WAN Manager, and Meraki
Cisco enterprise automation changes character when the source of truth moves from an individual IOS XE device to a controller or cloud platform. Catalyst Center, […]
Cisco 300-435: Streaming Telemetry and Webhooks in Cisco Network Automation
Network automation becomes more useful when it can react to changing state instead of polling every device on a fixed schedule. Cisco IOS XE model-driven […]
Cisco 300-435: AI-Assisted Network Automation with FastMCP
AI-assisted network automation changes the interface between an engineer and automation code. Instead of every workflow being invoked through a fixed CLI, API call, or […]
Cisco 200-201: Packet Capture, NetFlow, or Logs for SOC Analysis?
A SOC investigation rarely starts with perfect evidence. Sometimes the analyst has a packet capture. Sometimes there are only flow records. Sometimes the most useful […]
Cisco 200-201: Windows Event Logs for SOC Investigations
Windows produces enormous amounts of event data. A SOC analyst’s job is not to memorize every event ID. It is to recognize which events help […]
Cisco 200-201: Linux Logs for SOC Investigations
Linux does not give a SOC analyst one universal security log with identical paths on every distribution. Modern systems may use the systemd journal, traditional […]
Cisco 200-201: How to Spot DNS Tunneling in SOC Traffic
DNS is necessary for normal network operation, which makes it attractive to attackers. A host that is allowed to resolve names may also be able […]
Cisco 200-201: X.509 Certificates and TLS Key Exchange
TLS investigations become confusing when certificates, cipher suites, encryption algorithms, signatures, and key exchange are treated as one thing. They are related parts of a […]
Cisco 350-401: SD-Access Underlay and Overlay
Cisco SD-Access separates the network into two related systems: an IP underlay that provides basic reachability between fabric devices, and an overlay that carries endpoint […]
Cisco 350-401: Using Catalyst Center Assurance for Troubleshooting
Cisco Catalyst Center Assurance turns telemetry from the network into health scores, issues, events, and troubleshooting workflows. The value is not that it creates one […]
Cisco 350-401: EEM Applets for Local Network Automation
Cisco Embedded Event Manager, or EEM, gives an IOS XE device the ability to react locally when a defined event occurs. Instead of waiting for […]
Cisco 350-401: PIM Sparse Mode, SSM, and IGMP
IP multicast is designed for one-to-many delivery without forcing the sender to transmit a separate copy of the same stream to every receiver. That efficiency […]
Cisco 350-401: SPAN, RSPAN, and ERSPAN for Packet Mirroring
When interface counters and logs are not enough, packet analysis can show exactly what crossed a network device. Cisco SPAN technologies copy selected traffic to […]