Glossary of Core Terms Network Management × Glossary of Core Terms Term Definition CDP (Cisco Discovery Protocol) A Cisco-proprietary Layer 2 protocol used to discover directly connected Cisco devices and gather basic information such as hostname and interface. LLDP (Link Layer Discovery Protocol) A vendor-neutral Layer 2 discovery protocol used to identify neighboring devices in […]
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Key Terms & Concepts Security Management Framework × Key Terms & Concepts ISO/IEC Security Framework Term Definition ISO/IEC 27001 International standard for establishing, implementing, maintaining, and continually improving an ISMS. ISMS Information Security Management System, a structured set of policies and controls for managing security. ISO/IEC 27002 Companion standard providing detailed guidance on the implementation
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Troubleshooting Key Commands Network Troubleshooting Process × Troubleshooting Key Commands & Concepts Troubleshooting Key Commands & Concepts Cisco IOS Commands show version : Device uptime, OS, hardware info show ip interface brief : IP & status overview show interfaces : Interface errors & status show ip route / ipv6 route : Routing table ping /
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Glossary of Key Terms Network Security × Glossary of Key Terms Term Definition Asset Anything of value to the organization, including data, people, devices, or infrastructure. Vulnerability A weakness in a system or design that could be exploited by a threat. Threat A potential danger that could exploit a vulnerability. Exploit A method or
LESSONS LEARNED Static and Default Routes Troubleshooting × LESSONS LEARNED (Static & Default Route Troubleshooting – and how this blog came to life) Routing Concepts A packet’s journey isn’t just logical, it’s physical and traceable. Static routes depend on accurate IP and interface configs. Default routes are fallback paths that misuse causes black holes. ARP
