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Data CenterRouting & Switching

VMWare vSphere 6.0 Networking Best Practices

Consider these best practices when you configure your network....
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Routing & Switching

EIGRP & OSPF RID Selection

In this order: Manual router ID configured under ospf process Highest IP address of a loopback in the up state...
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Routing & Switching

Cisco Router Viewing Crash Files

Contents of the Crashinfo File The crashinfo file contains this information: *limited error message (log) and command history *description of...
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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...
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Routing & Switching

Subnet Mask Cheat Sheet

Laptops & DesktopsRouting & Switching

Cisco Switch Macros (2960S/X 3750,etc…)

Cisco has built in port macros where it will automatically assign specific commands to a port based on the macro...
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Routing & Switching

Cisco HSRP Tracking

HSRP Tracking is pretty easy to do. You have several options as you’ll see below....
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Laptops & DesktopsRouting & SwitchingSecurity

Saving Cisco Configurations Using Putty and Removing -more-

When saving device configurations using PuTTY, you’ll got a lot of –more–’s in the configuration file and it’s annoying. To...
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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...
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Routing & Switching

Cisco CLI PIPE and Regular Expressions (RegEx)

Some common ones I use:...
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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 LAG Microsoft IIS Microsoft SQL Microsoft Windows OSPF Packet Capture Palo Alto Palo Alto CLI PDF Planning Ports PowerShell python QOS Splunk SSL Storage Structured Cabling TCP TLS Troubleshooting Upgrade VMWare
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