Kerry CorderoPractical Network Engineering Notes
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BGP

Routing & Switching

Understanding BGP Routing Tables: Adj-RIBs-In, Loc-RIB, and Adj-RIBs-Out

The Border Gateway Protocol (BGP) is one of the most essential and complex protocols in network routing. Despite its complexity,...
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Routing & Switching

From Peer-Groups to Update-Groups: A Look at BGP Efficiency

Border Gateway Protocol (BGP) plays a pivotal role in the networking world, governing how routers share information about the paths...
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Routing & Switching

BGP Troubleshooting

Main Troubleshooting Flowchart Troubleshoot BGP Neighbor Establishment Troubleshoot Routes Missing from the Routing Table Troubleshoot Multihoming Inbound Troubleshoot BGP Route...
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Routing & Switching

Python – Use RIPE to Research IP Subnet (BGP AS, Geolocation, Reverse DNS, CIDR Block, & Registration)

# Author: Kerry Cordero # Version: 1.0.0 # Description: This script will use RIPE to Research IP Subnet (BGP AS,...
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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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Routing & Switching

Untangling Soft Reconfiguration and Dynamic Inbound Soft Reset (RFC 2918) in BGP

In BGP routing, the terms soft reconfiguration and dynamic inbound soft reset often get conflated, but they refer to distinct...
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Routing & Switching

The Power of “No”: Understanding the “no bgp default ipv4-unicast” Command in BGP Configuration

When it comes to Border Gateway Protocol (BGP), there’s a myriad of configuration options available to network engineers. One command...
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Routing & Switching

BGP 101

Introduction The Border Gateway Protocol (BGP) uses a path-vector routing algorithm to exchange routing information between BGP speakers. The routing...
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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

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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  • 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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