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EECS 122, Midterm Review

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DNS; Connection (end-to-end); Packets (routers-stateless) ... Networks; Subnetworks. EECS 122 - Fall & Walrand. MR4. Review. Layers. Application. Transport ... – PowerPoint PPT presentation

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Title: EECS 122, Midterm Review


1
EECS 122, Midterm Review
  • Kevin Fall
  • kfall_at_cs.berkeley.edu
  • Jean Walrand
  • wlr_at_eecs.berkeley.edu

2
ReviewOutline
  • Overview
  • Layers
  • Physical
  • Link
  • LAN Ethernet
  • Network

3
ReviewOverview
  • Packets Circuits Virtual Circuits
  • DNS Connection (end-to-end) Packets
    (routers-stateless) Bits Signals
  • Hierarchical Names
  • Networks Subnetworks

4
ReviewLayers
Application
Many (SMTP, HTTP)_
Transport
TCP UDP
Network
IP
Link
Many (Ethernet, FDDI)
PHY
Copper fiber wless
5
ReviewPhysical Digital Communication
  • Error Coding (understand pros and cons)
  • Detection end-to-end or link by link
  • Correction
  • Modulation
  • Baseband
  • self-clocking why? e.g., Manchester
  • not self-clocking e.g., OOK
  • Broadband
  • why? e.g., BPSK
  • Delay Queuing Transmission Propagation

6
ReviewLink Layer
  • Bits ? Packet Framing
  • Sharing Multiplexing
  • TDM, FDM, Statistical, Multiple Access

7
ReviewLAN Ethernet
  • HUB Switch
  • CSMA/CD
  • Addressing
  • Frame
  • Bridges Learning Spanning Tree

8
ReviewNetwork
  • Addressing
  • Classes
  • Subnets
  • Forwarding table look-up
  • Routing LS, DV, PV Dijkstra BF
  • Multicast Routing
  • RPB TRPB (prune or graft) Shared Trees
  • PIM-SM PIM-DM

9
ReviewFirst Order Ideas
  • Packets Statistical Multiplexing
  • Layers
  • End-to-end design principle
  • Best Effort
  • Internetworking
  • Hierarchical Naming and Addressing
  • Soft States

10
ReviewImplementations
  • Ethernet
  • Bridges for LANs
  • Subnets separated by routers ARP
  • Choice of Routing Algorithm
  • Specifics of CSMA/CD
  • Specifics of coding modulation
  • DNS
  • PIM
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