LAYER 1-3 NETWORKING

Date: 5th – 8th June, 2023
Location: Paro, Bhutan
Venue: PCE
Trainer: Tashi Phuntsho (btNOG), Karma Jamyang (DrukREN), Phurpa Rinchen (Bhutan Telecom Ltd.)

Outline:

  1. TCP/IP Model – OSI Model (Encap & DeCap)
  2. Campus LAN Design Principles
  3. Layer 1
    • Wired
    • Wireless
    • Optics
      • Fiber
      • xWDM
      • Optical Transceivers
      • Best practices
      • Fiber Design
  4. Layer 2:
    • Layer 2 fundamentals
    • VLAN 
    • Inter-VLAN routing
    • STP/RSTP/PVST/R-PVST (since the labs would be on IOS/CatalystOS)
    • Link Aggregation Control Protocol (LACP)
    • Switch Security
  5. Layer 3:
    • How does the Internet work? 
    • IPv4 and IPv6 Addressing – all about addressing (L2, L3… and even at L4)
    • IP address planning (v4/v6) basics
    • Network Address Translation (NAT) & DHCP
    • Routing fundamentals
    • Gateway Redundancy ~ FHRP/VRRP/HSRP
    • Network Security
    • ACLs
    • AAA & RADIUS
    • 802.1x
    • BCP38 (uRPF) (Lab)
    • Blackholing/RTBH – BOGON 
  6. Network Management 
    • SNMP fundamentals – MIBs and OIDs (SNMP walk) & SNMP message flows
    • SNMPv1/v2c/v3
    • SNMP vs telemetry
    • Log management
    • Network Documentation
    • Flow monitoring (NFSen-NG? Akvorado?)
  7. Troubleshooting Network Connectivity
    • Layer 1
    • Layer 2
    • Layer 3
    • Packet capture and protocol analysis – Tshark/WireShark