Kerry CorderoKISS IT Design Principle - Human Error Prevention
  • 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
  • See all results
Home
Routing & Switching
Oldest
  • Latest
  • Oldest
  • Random
  • A to Z

Routing & Switching

Routing & Switching

BGP Private ASNs

Private autonomous system (AS) numbers which range from 64512 to 65535 are used to conserve globally unique AS numbers....
Read More
Data CenterRouting & Switching

Cisco ASR 1004 L2TPv3 Pseudowire IPSec Encryption

Here I’m going to show a basic configuration on how to Encrypt a 10G link that has a stretched subnet....
Read More
Routing & Switching

RFC1918 Private IPv4 Address Spaces

RFC1918 name IP address range number of addresses largest CIDR block (subnet mask) host id size mask bits classful description...
Read More
Routing & Switching

Cisco CLI PIPE and Regular Expressions (RegEx)

Some common ones I use:...
Read More
Routing & Switching

Total Output Drops on Cisco 3750x Switches

I came across a bug in IOS 12.2(53r)SE2 and it shows up in other IOS versions, where the “Total output...
Read More
Routing & Switching

Administrative Distances

Default Distance Value Table This table lists the administrative distance default values of the protocols that Cisco supports:...
Read More
Routing & Switching

RIBs vs FIBs vs CEF and Data Plane vs Control Plane (How it all works)

RIB vs FIB In Cisco networking, the Routing Information Base (RIB) and Forwarding Information Base (FIB) are two separate but...
Read More
Data CenterRouting & Switching

Cisco Stack Port Channel Issues with MAC Address Persistency

When a switch stack forms a port-channel, the active stack member’s MAC Address is used for the LACP ID. The...
Read More
Routing & Switching

Subnet Mask Cheat Sheet

Routing & Switching

Checking the RIB for RIP, OSPF, EIGRP, BGP, & IS-IS

RIP – “sh ip rip database” OSPF – OLD > “sh ip ospf database” NEW > “sh ip ospf rib...
Read More
Load More

Categories

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

Tags

Active Directory (AD) API 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 Logging macOS Microsoft IIS Microsoft SQL Microsoft Windows OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare
© 2025 cordero.me • All Rights Reserved
  • 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

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

Tags

Active Directory (AD) API 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 Logging macOS Microsoft IIS Microsoft SQL Microsoft Windows OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Structured Cabling TLS Troubleshooting Upgrade VMWare
Start typing to see results or hit ESC to close
Troubleshooting Palo Alto Microsoft Windows F5 Cisco
See all results