Kerry CorderoPractical Network Engineering Notes
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Routing & Switching

Routing & Switching

MTR vs Iperf Network Diagnostics and Performance Tools

MTR and Iperf are tools used in network diagnostics and performance measurements, but they focus on somewhat different aspects of...
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Routing & Switching

Cisco Nexus – VPC L3_VPC_UNEQUAL_WEIGHT in Logs

VPC-2-L3_VPC_UNEQUAL_WEIGHT: Layer3 peer-router is enabled. Please make sure both vPC peers have the same L3 routing configuration The L3_VPC_UNEQUAL_WEIGHT message...
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CloudCodeData CenterLaptops & DesktopsLoad BalancingRouting & SwitchingSecurityServersVOIPWireless

BCP – Business Continuity Plan for Data Center Hurricane Failover & Failback Example

  Table of Contents 1. Objectives 2. Stakeholders 3. RTO/RPO Targets 4. Hurricane Trigger Points 5. Communication Plan 6. Pre-Hurricane...
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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 & Switching

Best Practice – Cisco Nexus VPC Peer-Switch

The Virtual Port Channel (vPC) technology, integral to Cisco’s Nexus series of switches, introduces many advantages, notably the capability to...
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Data CenterLoad BalancingRouting & SwitchingServers

QSFP vs QSFP-DD vs SFP vs LC vs MPO/MTP – Putting it all together

Transceiver Types Quad Small Form-factor Pluggable Double Density (QSFPDD) Definition: An evolution of the QSFP form factor, this transceiver can...
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Routing & Switching

Understanding the BGP Finite State Machine: From IDLE to ESTABLISHED

The Border Gateway Protocol (BGP) is the backbone routing protocol of the internet, allowing different autonomous systems (AS) to exchange...
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Routing & Switching

Best Practice – Cisco Nexus VPC Auto-Recovery

Cisco’s Virtual Port Channel (vPC) technology has been a cornerstone in modern data center network designs, offering device-level redundancy. While...
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Routing & Switching

Best Practice – Cisco Nexus VPC

vPC, or Virtual PortChannel, is a fundamental technology in modern networking that allows links to be aggregated across multiple physical...
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Routing & SwitchingServers

Data Flow – MX Records

When setting up domains and email services, it’s essential to grasp how different DNS records interact. The MX (Mail Exchange)...
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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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