Kerry CorderoKISS IT Design Principle - Human Error Prevention
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Routing & Switching

Routing & Switching

BGP Troubleshooting

Main Troubleshooting Flowchart Troubleshoot BGP Neighbor Establishment Troubleshoot Routes Missing from the Routing Table Troubleshoot Multihoming Inbound Troubleshoot BGP Route...
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Routing & Switching

Python – IP Subnetting

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script prompt for the IP Address and then the SubnetMask/CIDR....
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Data CenterRouting & Switching

Quality of Service (QoS) – Application Marking Recommendations

In our hyper-connected world, prioritizing specific types of data traffic has become essential. Quality of Service (QoS) is a mechanism...
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Routing & SwitchingSecurity

Packet Capture – Cisco Nexus

Cisco Nexus switches use a slightly different syntax compared to the ASA series for packet capturing, which is accomplished through...
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Routing & Switching

Cisco Stacks – Network Upgrades with ISSU and Cisco StackWise Virtual

In today’s fast-paced world, network reliability and uptime are critical for any business. However, network administrators often face a daunting...
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CloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

RFC 5735 – Special Use IPv4 Addresses

Before we dive into the specifics, let’s take a moment to revisit what RFCs are. Standing for “Request for Comments,”...
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CloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

Organizational Structures for IT – Network Leads & Network Architects

I’ve carried the Architect title over the years of being in IT. Below is my opinion on the difference between...
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Routing & Switching

MTR Analysis Deep Dive: When Packet Loss Isn’t Really Packet Loss

Intro When diagnosing latency or packet loss, many engineers turn to MTR (My Traceroute) — a hybrid of ping and...
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Routing & Switching

Cisco Nexus – Upgrading with In-Service Software Upgrade (ISSU)

In the fast-paced world of networking, system uptime is a top priority. When upgrading network infrastructure, minimizing downtime is essential....
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Routing & Switching

Understanding and Troubleshooting UDP Session Timeouts in Firewalls

When dealing with network traffic, understanding the behavior of different protocols is vital. UDP, or User Datagram Protocol, is a...
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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
  • IP Calculator
  • 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 Azure 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 OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS snmp Splunk SSL Storage Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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