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Topic 20 LAN Protocols and Network Devices Enabling Objectives

Topic 20 LAN Protocols and Network Devices Enabling Objectives 20.1 IDENTIFY networking physical media. 20.2 IDENTIFY local and wide area networking hardware and protocols. 20.3 IDENTIFY server side hardware. 20.4 DISCUSS security enclaves. Unshielded Twisted Pair. Coaxial Cable.

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Topic 20 LAN Protocols and Network Devices Enabling Objectives

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  1. Topic 20 LAN Protocols and Network Devices Enabling Objectives 20.1 IDENTIFY networking physical media. 20.2 IDENTIFY local and wide area networking hardware and protocols. 20.3 IDENTIFY server side hardware. 20.4 DISCUSS security enclaves.

  2. Unshielded Twisted Pair

  3. Coaxial Cable

  4. Wireless Media • Radiowaves • Microwaves • Infrared light

  5. Network Interface Card • Interfaces computer to network • High-speed • RJ-45, Fiber, Coaxial, AUI

  6. Backbone Switch Backbone Switch Backbone OC-12 – GIG-E Gigabit Ethernet IEEE 802.3z OC-3 – GIG-E OC-3 – GIG-E Edge Switch ATM 100BaseT Fast Ethernet 10BaseT 10Mbps 802.3u Ethernet II

  7. THE OSI AND LAN PROTOCOLS LLC DATA LINK LAYER Layer 2 MAC Ethernet II 100BaseT 802.3u Gig_E 802.3z PHYSICAL LAYER Layer 1 OSI Model LAN Protocols

  8. OSI Model ATM Model ATM Adaptation Layer Layer 2 DATA LINK LAYER ATM Layer PHYSICAL LAYER Layer 1 PHYSICAL LAYER Header (5 bytes) Payload (48 bytes) ATM CELL

  9. NOC NOC DISN SIPR NIRP PSN INTERNET NOC DISN SIPR NIPR PSN INTERNET ISNS ISNS ADNS ADNS ISNS ISNS ISNS ADNS ADNS ADNS N/MCI N/MCI Networking Concept of Operations SATCOM NCTAMS NCTAMS NCTAMS DWTS/UHF LOS ADNS NOC ADNS DWTS/UHF LOS PIERSIDE ISNS ADNS

  10. PPP Encapsulation PPP Encapsulation IP Datagrams IP Datagrams Transit Link ADNS ADNS

  11. Data Link Layer Layer 2 PPP Physical Layer Layer 1 Sync or Async Physical Media Field length in bytes 1 1 1 2 Variable 2 or 4 Flag Address Control Protocol Data FCS

  12. 802.3u 802.3u 802.3u Ethernet II Ethernet II Ethernet II Omniswitches ATM Server Server NIC Omnistack

  13. COMMS ADNS Cisco 802.3u 802.3u 802.3u Ethernet II Ethernet II Ethernet II Server Server Routers Omnistack

  14. A B C 205.1.1.102 205.1.1.103 205.1.1.101 HUB = DUMB - Physical layer device - Energy comes in 1 port and goes out all other ports - One collision domain - One bcst domain SIMPLE LOCAL AREA NETWORK (LAN) USING A HUB HUB F D E 205.1.1.106 205.1.1.104 205.1.1.105

  15. A B C Xxxxx xxxxx xxxx Xxxxx xxxxx xxxx ! ! 205.1.2.101 MULTIPLE LOCAL AREA NETWORKS (LAN) USING A SWITCH…… 205.1.1.101 205.1.3.101 SWITCH = SMART - Data Link layer device - Six separate collision domains - Ability to build VLANs allows 3 separate bcst domains ESM ESM F D E 205.1.1.102 205.1.3.102 205.1.2.102

  16. VLAN BS BS DC1 DC2 VLANs ES ES 802.3u 802.3u Ethernet II Ethernet II

  17. xx xx xx xx xx xx ! ! ! ! ! ! ! ! ! ! ! ! UNCLAS ESM ESM ESM ESM ESM ESM ESM ESM SECRET ESM ESM ESM ESM ESM ESM ESM ESM SCI ESM ESM ESM ESM ESM ESM ESM ESM

  18. Alcatel OmniSwitch/Router Omniswitch 7700 • Key Features • Supports Protocol or Media • 22+ Gbps switching fabric speed • Auto-sensing, self-configuring ports • Dual redundant power supplies

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