The Link Layer and LANs

• Link Layer Services
• Line Duplexity
• Error Detection
• Parity Checks
• Two Dimensional Parity
• Check Digit Method
• Modulo 2 Arithmetic
• Cyclic Redundancy Check (CRC)
• Modulo 2 Division
• Checking At The Receiver
• Polynomial Representation
• Cyclic Redundancy Check (CRC)
• Popular CRC Polynomials
• Error Detection: Review
• Homework 5A
• Review Exercises
• Ethernet and ARP
• Multiple Access
• Multiple Access
• CSMA/CD
• IEEE 802.3 CSMA/CD
• IEEE 802.3 CSMA/CD Flow Chart
• CSMA/CD Operation
• 10BASE-T
• Ethernet Standards
• CSMA/CD Performance
• The Magic Word ?
• Distance-B/W Principle
• Ethernet vs Fast Ethernet
• IEEE 802 Address Format
• Bridges
• Bridge: Functions
• Interconnection Devices
• Address Resolution Protocol
• Ethernet and ARP: Review
• Review Exercises
• Homework 5B
• LLC, VLANs, PPP, and MPLS
• Ethernet vs. IEEE 802.3
• Ethernet and 802.3 Frame Formats
• LLC Header
• SNAP SAP
• Full-Duplex Ethernet
• What is a LAN?
• What is a Virtual LAN
• Virtual LAN
• VLAN: Why?
• Types of Virtual LANs
• PPP: Introduction
• PPP Design Requirements [RFC 1557]
• PPP in HDLC-Like Framing
• Multiprotocol Label Switching (MPLS)
• Label Switching Example
• LLC, VLANs, PPP, MPLS:Review
• Summary
• Review Exercises

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