Kerry CorderoPractical Network Engineering Notes
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Routing & Switching

Routing & Switching

Cisco TACACS+ and RADIUS: A Deep Dive into Network Access Control Protocols

In the realm of network security, controlling access to networks is paramount. Cisco, a leader in networking solutions, offers two...
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Routing & Switching

Cisco Nexus – Enabling Layer 3 Routing on vPC Peer Links with “layer3 peer-router”

The world of networking is in constant evolution. Among the players steering this transformation are Cisco Nexus switches, renowned for...
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Routing & SwitchingSecurity

Whitelisting and TCP Behaviour

Understanding the behavior of TCP retransmissions in packet capture, particularly in the context of companies that whitelist IP addresses, is...
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Routing & Switching

Adding a new Cisco Fex – Basic Config

fex 101 pinning max-links 1 description "FEX0101" fex 102 pinning max-links 1 description "FEX0102" interface port-channel101 switchport mode fex-fabric fex...
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Routing & Switching

EIGRP and OSPF Path Selection Manipulation

I’m hoping to post some examples in the near future but below is how you manipulate the traffic flow with...
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CloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

Certificate Chains

HOW CERTIFICATE CHAINS WORK Certificate chains, also known as a chain of trust, work on the concept of Public Key...
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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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Data CenterRouting & Switching

Cisco SSO vs NSF Operations

Stateful Switchover (SSO) Operation SSO makes one of the supervisor engines active while the other is on standby. SSO then...
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Routing & SwitchingSecurity

Palo Alto and Asymmetric Routing

Another fun topic, asymmetric routing.  One thing to keep in mind when it comes to Palo Alto firewalls is that...
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CloudRouting & Switching

LOA-CFA in the World of IT and Cloud Networking

What is LOA-CFA? In IT contexts, LOA-CFA stands for Letter of Authorization - Connecting Facility Assignment. This document 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
  • Tools
    • Car Calculator
    • IP Calculator
    • RouteAgg
    • Subnet Breakout
    • 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 Azure Best Practices BGP Certificates Cisco Cisco ACI Cisco ASA Cisco ASR Cisco Catalyst Cisco CLI Cisco ISE Cisco Nexus 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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