Kerry CorderoPractical Network Engineering Notes
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Routing & Switching

Data CenterRouting & Switching

Cisco Nexus Port-Side Exhaust vs Port-Side Intake

Port-side intake and port-side exhaust are terms used by Cisco, especially in their Nexus series of switches, to refer to...
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Routing & SwitchingServers

MTU 1500: Fragmentation after 1472 bytes “Packet needs to be fragmented but DF set”

Are you getting an error message that says, “Packet needs to be fragmented but DF set” or “Frag needed and...
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Routing & Switching

Understanding Network Infrastructure: MDFs, IDFs, and On-Site Data Centers Explained

Understanding the components of your building’s network infrastructure is crucial for effective network management. The critical elements of this infrastructure...
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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

Optimize BGP Processing with Update Groups

A concept known as the update group was developed to make BGP processing more efficient. Under the default settings, BGP...
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Routing & Switching

Cisco SmartNet 101

SNT SMARTnet Support 8x5xNBD SNTE SMARTnet Support 8x5x4 SNTP SMARTnet Support 24x7x4 S2P SMARTnet Support 24x7x2 CS Onsite SMARTnet Support...
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Routing & Switching

Why some switches show an MTU of 1522 and some like Cisco show 1500

There’s no issue here. Cisco is just showing Ethernet MTU, which is 1500. There are 18 header bytes and 4...
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Routing & Switching

Cisco RMA Options

Routing & Switching

BFD – Bidirectional Forwarding Detection

BFD, which stands for Bidirectional Forwarding Detection, is a protocol used to detect faults within a network. Specifically, it is...
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Routing & Switching

Understanding the `disable-peer-as-check` Command in Cisco Nexus NX-OS BGP Configuration

Border Gateway Protocol (BGP) is an essential internet protocol that manages how packets get routed across the internet by exchanging...
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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
    • RouteAgg
    • IP Calculator
    • 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 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 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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