Kerry CorderoPractical Network Engineering Notes
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Kerry Cordero
JoinedMay 2, 2023
Articles707
20+ years of experience and proven performance in large scale enterprise network infrastructure architecture, design, implementation, migration, security, operation, troubleshooting, leading/managing teams, and budgets. I have a BS in Cybersecurity and a Master's from the University of Florida.
Load Balancing

F5 – Find Transceiver Info

#LIST NETWORK INTERFACE VENDOR AND SERIAL #list net interface media-active vendor serial net interface 1.0 { media-active 1000T-FD serial ARGETHXXXXX...
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Routing & Switching

STP – Finding Who’s Sending BPDUs on the Network

Knowing which devices are sending BPDU packets on the network when troubleshooting spanning tree issues can be helpful. This allows...
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Routing & Switching

Cisco Live Preparing for 400G

Below is a good slide deck from Cisco Live:...
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Security

Palo Alto Global Protect Client Software Not Upgrading

If you are trying to upgrade your Palo Alto GlobalProtect APP and notice it’s not getting upgraded, a good place...
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Routing & Switching

BGP AS Path Manipulation

One ASN is usually given to the Regional Internet Register (RIR) when two companies merge. Each organization must maintain its...
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Load Balancing

F5 – Transceiver Modules

Load Balancing

F5 – Verify Support Contract End Date

F5 has an easy way to get the support contract for your F5 devices. Go to the link below, add...
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Load Balancing

F5 – Sticky Persistence Options

Locations: Persistence (sticky) Profiles: Local Traffic > Profiles > Persistence Virtual Servers (Where you apply the Persistence Profile): Local traffic...
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Routing & Switching

BGP 102

#PEERS Internal BGP (iBGP) peers and external BGP (eBGP) peers are the two types of peers used by BGP. BGP...
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Routing & Switching

STP – Tracking Down Topology Changes and the Importance of Setting the Root Bridge

Finding Spanning Tree Protocol (STP) topology changes in a network is not always straightforward. However, it is critical to identify...
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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
    • IP Calculator Slicer
    • IP Prefixlist LE GE 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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Troubleshooting Palo Alto Microsoft Windows F5 Cisco
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