Kerry CorderoPractical Network Engineering Notes
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Routing & Switching

Data CenterRouting & SwitchingSecurityServers

Wireshark – Analyze Network Performance

Name Filter Description Connection Reset tcp.flags.reset==1 Unexpected TCP resets could suggest a network failure or timeout. Bad TCP packets tcp.analysis.flags...
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Routing & Switching

Understanding SNI and Host Headers in Modern Network Infrastructures

In today’s interconnected world, navigating the complex webs of network infrastructure can be challenging but crucial to understanding how traffic...
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Routing & Switching

Cisco – How to Speed Up Traceroute on Cisco IOS and IOS-XE Devices “numeric”

Traceroute is a convenient network diagnostic tool for tracking the pathway taken by a packet on an IP network from...
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Routing & Switching

What is Encapsulation?

In IT networking, encapsulation refers to adding headers, trailers, and sometimes additional data to a packet as it moves down...
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Load BalancingRouting & Switching

Navigating the F5 TMOS Shell: Introduction to the IMI Shell and Basic BGP Commands

Today, we’ll closely examine the F5 TMOS shell, focusing on how to use the Integrated Multiservice Interface (IMI) shell and...
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Routing & Switching

TLS – Finding the SNI

Whenever a Transport Layer Security (TLS) connection begins, the first message sent is the Client Hello. This initial transmission from...
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Routing & Switching

Using RFC1918 Ranges in Prefix Lists

The dynamic world of Information Technology is chock-full of terms and practices that can sometimes be challenging to decipher. One...
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Routing & Switching

Route Leaking in VRF Lite – Enabling Communication between VRFs

Virtual Routing and Forwarding (VRF) Lite is a technology used to achieve routing separation in IP networks without MPLS support....
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Data CenterRouting & Switching

Cisco – Handling Critical Device Configurations When you Don’t have an OOB Solution, Reload Command

In network engineering, configuring a production device can be a high-stakes operation. One wrong command could cause a cascade of...
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Data CenterRouting & Switching

Link Aggregation Control Protocol (LACP) and Handling Elephant Flows

In the networking world, link aggregation is critical for building robust, high-performance networks. Link aggregation allows multiple physical links to...
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  • Home
  • About
  • Disclaimer
  • Guides and Slides
    • AWS Well-Architected Framework
    • Facebook – Running BGP in the Data Center at Scale
    • Microsoft – Experiences with BGP in Large Scale Data Centers
    • Palo Alto PCNSE Study Guide
  • Tools
    • Car Calculator
    • RouteAgg
    • IP Calculator
    • VSLM
  • Links
  • Contact

Categories

  • AI
  • Business Management
  • Cloud
  • Code
  • Data Center
  • Laptops & Desktops
  • Load Balancing
  • Routing & Switching
  • Security
  • Servers
  • Uncategorized
  • VOIP
  • Wireless

Tags

Active Directory (AD) AWS Best Practices BGP Certificates Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco ISE Cisco Nexus Cisco Stack DDOS Design DNS EIGRP F5 HTTP(S) IP Addressing and Subnetting Microsoft IIS Microsoft SQL Microsoft Windows Netflow OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS snmp Spanning-Tree Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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