Kerry CorderoPractical Network Engineering Notes
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Routing & Switching

CloudData CenterRouting & SwitchingServers

VMware On-Prem to Azure Cloud Migration Plan

Migrating Windows Servers from an on-premises VMware environment to the Azure cloud requires careful planning and execution. Here’s a general...
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Routing & Switching

Cisco Troubleshooting Interface Issues

In my case I was troubleshooting an interface that had to be 100Mb. But these commands can be used on...
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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

Python – Traceroute with IP Address, ASN, Organization, Country, City

# Author: Kerry Cordero # Version: 1.0.5 # Description: This script prompts for an IP or FQDN and will output...
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Data CenterRouting & Switching

Cisco Optics-to-Device Compatibility Matrix

Cisco Optics-to-Device Compatibility Matrix...
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Routing & Switching

CIDR Subnet Table: Total and Usable IP Addresses

Network Bits (CIDR) Total IP Addresses Usable Host IPs /8 16,777,216 16,777,214 /9 8,388,608 8,388,606 /10 4,194,304 4,194,302 /11 2,097,152...
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Routing & Switching

Cisco TACACS+ Configs for ACS (Nexus, ASR_IOS-XE, IOS, ASA, Wireless)

Below are some examples pulled from a working configuration. Enjoy!...
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Data CenterRouting & SwitchingServers

Large Data Transfers (backups) – What to look for from a Network, Server, and Storage Perspective

What if you had to transfer a large amount of Data for backups?  Where do you put them?  How do...
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Data CenterRouting & Switching

Facebook – Running BGP in the Data Center at Scale

Below is a great document from Facebook on running BGP in the DC at scale....
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Business ManagementCloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

The Crucial Role of Documentation and Diagrams in IT Infrastructure Projects

In today’s rapidly evolving IT landscape, deploying new components like firewalls demands more than technical know-how. Effective knowledge transfer mechanisms...
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Active Directory (AD) AI AWS Azure Best Practices BGP Certificates Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco ISE Cisco Nexus Cisco Stack 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 Spanning-Tree Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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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
    • IP Calculator
    • RouteAgg
    • Subnet Breakout
    • Time Zone Converter
    • 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) AI AWS Azure Best Practices BGP Certificates Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco ISE Cisco Nexus Cisco Stack 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 Spanning-Tree Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare Zscaler
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