NETWORK ANATOMY 101:
Inside ARC Data Networks
Outline & Schedule
Day 1
08:00 - 08:30
Greeting
Introductions
Facility/Amenities08:30 - 08:50
Course Overview08:50 - 09:05
Break09:05 - 09:30
Unstructured Questions & Discussion09:30 - 10:15
Lecture INETWORK OVERVIEW
Example LAN/WAN Topology Diagram
HUGE Technical Resource Page
Devices, Media, Connectors, Protocols, Application SW and People
A. LAN DevicesEthernet Devices (Star, Ring, & Bus)
Coaxial Cable Bus (the original Ethernet "sharing device", the "backbone")Other LAN Devices
Hub
Bridge
Switch (auto sense)
Virtual Devices (VLAN, RSM)
Media Converter/Adapter
Router (Could be a multi-homed computer)
NIC (physical network interface card/module)ATM SwitchEnd Node Devices
A/B/D/E Mechanical Switch
Cryptographic Devices (KG, KIV, NES)Computer (PC, Workstation, File Server, Super Computer)B. WAN Devices
Archive/Backup Device (often specialized)
Printer, FAX
Telephone
CameraRouterC. LAN and WAN Media (includes wireless)
CSU/DSU, ISU, MoDem
Multiplexer
Inverse MultiplexerD. Media Connector TypesEthernet Media
Types
Cable Length RestrictionsPhysical Addressing (part of media protocol)
Ethernet MAC Address Format
MAC OUI
More OUI examples
Transmission LinesThickNet Coaxial CableOptical FiberThinNet Coaxial CableVampire Tap!
Ribbon Cable
Twisted PairSingle Mode
Multi-Mode![]()
Connectors_1
Connectors_2
Connectors 3E. Protocols Applications and PeopleProtocols
10:15 - 10:30
Break10:30 - 11:30
Lecture II -- LAN, CAN, MAN and WAN (Compare and Contrast)
Example LAN/WAN Topology Diagram
![]()
Day 2
08:00 - 08:30
Recap of Day 1, Q&A08:30 - 9:00
Lecture III -- OSI Model Overview, TCP/IP Protocol OverviewSee TCP/IP Tutorial - OSI
Cached Optimized Compendium
Online Technical Compendium
09:00 - 9:15
Break9:15 - 10:15
Lecture IV -- Network DevicesCompare/Contrast Network Device Functions
Hub, Switch, Router/Firewall, CSU, Leased Services, Cryptographic Devices10:15 - 10:30
Break10:30 - 11:00
Lecture V -- Messages, Addresses, and DataEthernet Message Format (MAC Destination and Source Addresses)
IP Datagram Format (IP is data of Ethernet frame)
ARP and Proxy ARPIP Network and Subnetwork MasksEdit/Find in Page - "arp", then find "proxy arp"
11:00 - 11:30
Tour NOC
![]()
Day 3
08:00 - 08:45
Recap of Day 2, Q&A
8:45 - 9:00
Break
9:00 - 09:50
Lecture VI -- TCP/IP (Reinforcement)http://sunsite.iisc.ernet.in/collection/virlib/tcpip/parker/tyt02fi.htmIP Address Structure
Local Cache copy, - TCP_all
Classful (Registered) Mask, Subnet (Classless) Mask,
Network Bits, Endnode (Node, System, Host) BitsChart: IP Classes
Discussion of IP Classes (Edit > Find in Page: "Figure 2.9")
09:50 - 10:05
Break10:05 - 11:00
Lecture VII -- Variable Length Network Masks (21, 24, and 30 bits)
ARC IP Schemes (file not published)
11:00 - 11:15
Last Break!11:15 - 11:30
Instructor Evaluation Bashing (Class Feedback)
Certificates and Well Wishes
The End!Supplemental Material:
DWDM
Cisco Online Documentation
Humongous Technical Resource Page
Technical Books