Internet. 1) Internet basic technology (overview) 3) Quality of Service (QoS) aspects
|
|
|
- Berniece Mills
- 6 years ago
- Views:
Transcription
1 Internet 1) Internet basic technology (overview) 2) Mobility aspects 3) Quality of Service (QoS) aspects Relevant information: these slides (overview) course textbook (Part H) (details)
2 IP network architecture Computer Router Backbone Modem or xdsl connection LAN or intranet
3 Server-client concept Client transactions are always started by client network does not have to know IP address of client before transaction clients can be behind dial-up modem connections concept used in WWW applications Server
4 IP protocol suite FTP SMPT HTTP DNS SNMP TCP UDP IP OSPF ICMP ARP PPP LAN-protocols, ATM, PSTN/ISDN, PLMN
5 Lower protocol layers IP OSPF ICMP ARP PPP Bearer Networks LAN-protocols, ATM, PSTN/ISDN, PLMN ARP (Address Resolution Protocol) manages mapping between logical IP addresses and physical MAC addresses in LAN s PPP (Point-to-Point Protocol) may be used for transport of IP datagrams over circuit switched connections (PSTN, ISDN, PLMN)
6 Assisting protocols at the IP-layer FTP SMPT HTTP DNS SNMP TCP UDP IP OSPF ICMP OSPF (Open Shortest Path First) is the most famous of possible protocols used for dynamic routing of IP datagrams ICMP (Internet Control Message Protocol) is a mandatory protocol used for informing hosts about problems in the network
7 Transport layer protocols FTP SMPT HTTP DNS SNMP TCP UDP IP OSPF ICMP TCP (Transmission Control Protocol) takes care of end-to-end flow & error control + segmentation & reassembly of datagrams UDP (User Datagram Protocol) is used in the connectionless case
8 Addressing A Port Y TCP / UDP IP IP address N Port points to application IP address points to host IP datagram contains: (in IP header) source IP address N destination IP address M (in TCP / UDP header) source port Y destination port Z B Port Z TCP / UDP IP IP address M
9 Applications (1) FTP SMPT HTTP DNS SNMP TCP UDP FTP (File Transfer Protocol) SMTP (Simple Mail Transfer Protocol) for outgoing POP (Post Office Protocol) for fetching from mailbox SNMP (Simple Network Management Protocol)
10 Applications (2) FTP SMPT HTTP DNS SNMP TCP UDP HTTP (HyperText Transfer Protocol) is used for client-server type of communication, and is the most popular protocol for transport of WWW content protocol host computer Uniform Resource Locator (URL) content page written in HTML
11 Applications (3) FTP SMPT HTTP DNS SNMP TCP UDP DNS (Domain Name System) performs transformation between IP addresses and domain names thisnetwork.thishost.com IP address must be used for routing through IP networks however, domain names are more user friendly
12 IPv4 address structure Hierarchical structure: unnecessary capacity Class A Class B 2 7 = = Network 2 14 = = Network Class C 2 21 = Network 2 8 = 256 running out of addresses => IPv6 is needed! Flat structure would provide 2 32 = IP addresses IPv6 provides = IP addresses!
13 IP header structure (IPv4) IP version fragmentation management IP header length IP datagram length octets can be used for QoS management Version IHL Type of Service Total length of IP datagram Identification Flags Fragment offset Time-to-live Protocol Header checksum (for error control) Source IP address Destination IP address Options Padding Payload of IP datagram old IP datagrams will be discarded TCP, UDP or ICMP
14 IP data unit structure user/application data TCP/UDP datagram IP datagram TCP/UDP header IP header bearer protocol frame/packet/cell
15 Mobility in IP networks Mobility is not traditionally supported in the Internet, but can (will) be implemented in the following ways: PLMN -based solutions: - GPRS (WAP or real HTML-based IP) - 3G packet transport (solutions evolving) IETF solutions (wireless WAN etc.): - Mobile IP (described in IETF RFC 2002) Potential problems: System interworking Security
16 IP transport in GPRS MT (Mobile Terminated) applications may not be supported (MS = server, client is on network side). Typical application is MO (Mobile Originated), where MS is client and server is in network. IP backbone GGSN MS BSS SGSN Internet Internet Server
17 IP transport in GPRS (2) 1 IP backbone GGSN 2 MS BSS SGSN 1. MS requests access (GPRS Attach) 2. GGSN creates an IP session (called PDP context in GPRS) defining temporary IP address of MS, address of used GGSN, tunneling IDs... Internet Internet Server
18 IP transport in GPRS (3) MS BSS SGSN 3. IP datagrams are tunneled between GGSN and SGSN (GTP = GPRS Tunneling Protocol) 4. IP datagrams from Internet server are always first routed to GGSN IP backbone 3 Internet GGSN Internet Server 4
19 Mobile IP - IETF solution for wireless LAN type applications - breakthrough in conjunction with IPv6? Basic architecture: Mobile Node Care-of address (IP address) Foreign Agent Correspondent Node Home Agent Home address (IP address)
20 Mobile IP (cont.) Mobile node terminated IP transport: Mobile Node Foreign Agent 2 Home Agent Care-of address (IP address 2) 1 Home address (IP address 1) Correspondent Node (IP address 3) 1. Correspondent node sends IP datagram to permanent home address 2. Home agent tunnels IP datagram to care-of address
21 Mobile IP (cont.) Tunneling in Mobile IP means encapsulation: Mobile Node Care-of address (IP address 2) Foreign Agent Original IP datagram Home Agent Home address (IP address 1) IP header IP payload IP header IP payload
22 Mobile IP (cont.) Mobile node originated IP transport: Mobile Node Care-of address (IP address 2) Note: source address in IP datagram is home address, not care-of address (IP address 2) Foreign Agent Correspondent Node (IP address 3) Home Agent Home address (IP address 1) Mobile node sends IP datagram directly to correspondent node (no tunneling required)
23 Mobile IP (cont.) Mobility requires: (1) agent advertisements Mobile Node Care-of address (IP address 2) Foreign Agent Home Agent Home address (IP address 1) 1. Mobile node has no valid care-of address 2. Foreign agents continuously broadcast (at 1 s intervals) lists of free care-of addresses 3. Mobile node selects a care-of address and informs the foreign agent.
24 Mobile IP (cont.) Mobility requires: (2) registration Mobile Node Care-of address (IP address 2) Foreign Agent Home Agent Home address (IP address 1) 1. Mobile node informs home agent about new care-of address 2. Home agent replies with ok -message (or resolves the problem if situation is not ok) 3. From now on home agent can tunnel IP datagrams to mobile node.
25 QoS support mechanisms in IP networks Problems with Best Effort IP transport (the old way) Existing and suggested alternatives for introducing QoS in IP backbone applications (situation year 2001): Alternative 1: RSVP (Resource ReSerVation Protocol) Alternative 2: DiffServ (Differentiated Services) Alternative 3: MPLS (Multi-Protocol Label Switching) Alternative 4: IP tunneling over ATM
26 QoS support mechanisms (2) Problems with Best Effort IP transport service:. "Best effort" service is sufficient for traditional Internet applications like web browsing, , and file transfer. "Best effort" service is not sufficient for: Speech (Voice) Low delay High throughput Interactive Video Video / Audio Streaming Low delay variation Consistent throughput Low round-trip delay
27 QoS support mechanisms (3) RSVP (Resource ReSerVation Protocol). (IETF RFC 2205) Resources are reserved beforehand (or at certain intervals) Ingress point IP Backbone Egress point RSVP can be considered an example of the integrated services concept (compare with differentiated services)
28 QoS support mechanisms (4) DiffServ (Differentiated Services). (IETF RFC 2475) Service tagging in ToS byte at ingress point Ingress point IP Backbone Egress point IPv4 Header Version IHL Type of Service Total length Identification Flags Time-to-live Protocol Header ToS byte = 8 bits (2 8 = 256 priority levels could be used)
29 QoS support mechanisms (5) MPLS (Multi-Protocol Label Switching). (IETF RFC 2702) Label switching in all routers along the path Ingress point IP Backbone Egress point 1. Virtual connection must be established first (using e.g. RSVP) 2. IP datagrams are encapsulated in MPLS frames and relayed through routers (i.e. only label, not IP header is used for routing)
30 QoS support mechanisms (6) IP tunneling over ATM. IP datagrams are encapsulated in ATM cells and transported over ATM virtual connections Ingress point ATM Backbone Egress point See lecture slides on ATM for protocol stacks involved
Lecture 17 Overview. Last Lecture. Wide Area Networking (2) This Lecture. Internet Protocol (1) Source: chapters 2.2, 2.3,18.4, 19.1, 9.
Lecture 17 Overview Last Lecture Wide Area Networking (2) This Lecture Internet Protocol (1) Source: chapters 2.2, 2.3,18.4, 19.1, 9.2 Next Lecture Internet Protocol (2) Source: chapters 19.1, 19.2, 22,1
Need For Protocol Architecture
Chapter 2 CS420/520 Axel Krings Page 1 Need For Protocol Architecture E.g. File transfer Source must activate communications path or inform network of destination Source must check destination is prepared
Need For Protocol Architecture
Chapter 2 CS420/520 Axel Krings Page 1 Need For Protocol Architecture E.g. File transfer Source must activate communications path or inform network of destination Source must check destination is prepared
The Internet. 9.1 Introduction. The Internet is a global network that supports a variety of interpersonal and interactive multimedia applications.
The Internet 9.1 Introduction The Internet is a global network that supports a variety of interpersonal and interactive multimedia applications. Associated with each access network - ISP network, intranet,
ECE4110 Internetwork Programming. Introduction and Overview
ECE4110 Internetwork Programming Introduction and Overview 1 EXAMPLE GENERAL NETWORK ALGORITHM Listen to wire Are signals detected Detect a preamble Yes Read Destination Address No data carrying or noise?
Chapter 2 - Part 1. The TCP/IP Protocol: The Language of the Internet
Chapter 2 - Part 1 The TCP/IP Protocol: The Language of the Internet Protocols A protocol is a language or set of rules that two or more computers use to communicate 2 Protocol Analogy: Phone Call Parties
RMIT University. Data Communication and Net-Centric Computing COSC 1111/2061. Lecture 2. Internetworking IPv4, IPv6
RMIT University Data Communication and Net-Centric Computing COSC 1111/2061 Internetworking IPv4, IPv6 Technology Slide 1 Lecture Overview During this lecture, we will understand The principles of Internetworking
The Internet Protocol (IP)
The Internet Protocol (IP) The Blood of the Internet (C) Herbert Haas 2005/03/11 "Information Superhighway is really an acronym for 'Interactive Network For Organizing, Retrieving, Manipulating, Accessing
Computer Networks. More on Standards & Protocols Quality of Service. Week 10. College of Information Science and Engineering Ritsumeikan University
Computer Networks More on Standards & Protocols Quality of Service Week 10 College of Information Science and Engineering Ritsumeikan University Introduction to Protocols l A protocol is a set of rules
B.Sc. (Hons.) Computer Science with Network Security B.Eng. (Hons) Telecommunications B.Sc. (Hons) Business Information Systems
B.Sc. (Hons.) Computer Science with Network Security B.Eng. (Hons) Telecommunications B.Sc. (Hons) Business Information Systems Bridge BTEL/PT BCNS/14/FT BIS/14/FT BTEL/14/FT Examinations for 2014-2015
Mohammad Hossein Manshaei 1393
Mohammad Hossein Manshaei manshaei@gmail.com 1393 Mobile IP 2 Mobile Network Layer: Problems and Concerns Entities and Terminology in Mobile IP Mobile Indirect Routing Mobile IP Agent Advertisement Registration
IPv6 Protocols and Networks Hadassah College Spring 2018 Wireless Dr. Martin Land
IPv6 1 IPv4 & IPv6 Header Comparison IPv4 Header IPv6 Header Ver IHL Type of Service Total Length Ver Traffic Class Flow Label Identification Flags Fragment Offset Payload Length Next Header Hop Limit
Special expressions, phrases, abbreviations and terms of Computer Networks
access access point adapter Adderssing Realm ADSL (Asymmetrical Digital Subscriber Line) algorithm amplify amplitude analog antenna application architecture ARP (Address Resolution Protocol) AS (Autonomous
CompSci 356: Computer Network Architectures. Lecture 8: Spanning Tree Algorithm and Basic Internetworking Ch & 3.2. Xiaowei Yang
CompSci 356: Computer Network Architectures Lecture 8: Spanning Tree Algorithm and Basic Internetworking Ch 3.1.5 & 3.2 Xiaowei Yang xwy@cs.duke.edu Review Past lectures Single link networks Point-to-point,
EEC-684/584 Computer Networks
EEC-684/584 Computer Networks Lecture 14 wenbing@ieee.org (Lecture nodes are based on materials supplied by Dr. Louise Moser at UCSB and Prentice-Hall) Outline 2 Review of last lecture Internetworking
Introduction to Information Science and Technology 2017 Networking II. Sören Schwertfeger 师泽仁
II Sören Schwertfeger 师泽仁 Outline Review Network Layer Routing Transport Layer Applications HTTP Demos Internet: Huge network of networks Billions of hosts (computers) Internet Structure Network Edge:
Data & Computer Communication
Basic Networking Concepts A network is a system of computers and other devices (such as printers and modems) that are connected in such a way that they can exchange data. A bridge is a device that connects
IP - The Internet Protocol. Based on the slides of Dr. Jorg Liebeherr, University of Virginia
IP - The Internet Protocol Based on the slides of Dr. Jorg Liebeherr, University of Virginia Orientation IP (Internet Protocol) is a Network Layer Protocol. IP: The waist of the hourglass IP is the waist
Protocol Layers & Wireshark TDTS11:COMPUTER NETWORKS AND INTERNET PROTOCOLS
Protocol Layers & Wireshark TDTS11:COMPUTER NETWORKS AND INTERNET PROTOCOLS Mail seban649@student.liu.se Protocol Hi Hi Got the time? 2:00 time TCP connection request TCP connection response Whats
IPv6. IPv4 & IPv6 Header Comparison. Types of IPv6 Addresses. IPv6 Address Scope. IPv6 Header. IPv4 Header. Link-Local
1 v4 & v6 Header Comparison v6 Ver Time to Live v4 Header IHL Type of Service Identification Protocol Flags Source Address Destination Address Total Length Fragment Offset Header Checksum Ver Traffic Class
TCP/IP Networking. Training Details. About Training. About Training. What You'll Learn. Training Time : 9 Hours. Capacity : 12
TCP/IP Networking Training Details Training Time : 9 Hours Capacity : 12 Prerequisites : There are no prerequisites for this course. About Training About Training TCP/IP is the globally accepted group
Introduction to routing in the Internet
Introduction to routing in the Internet Internet architecture IPv4, ICMP, ARP Addressing, routing principles (Chapters 2 3 in Huitema) Internet-1 Internet Architecture Principles End-to-end principle by
Review of Important Networking Concepts
Review of Important Networking Concepts Review: ed communication architecture The TCP/IP protocol suite 1 Networking Concepts Protocol Architecture Protocol s Encapsulation Network Abstractions 2 1 Sending
Internet Protocol, Version 6
Outline Protocol, Version 6 () Introduction to Header Format Addressing Model ICMPv6 Neighbor Discovery Transition from to vs. Taken from:chun-chuan Yang Basics: TCP/ Protocol Suite Protocol (IP) Features:
Packet Header Formats
A P P E N D I X C Packet Header Formats S nort rules use the protocol type field to distinguish among different protocols. Different header parts in packets are used to determine the type of protocol used
5105: BHARATHIDASAN ENGINEERING COLLEGE NATTARMPALLI UNIT I FUNDAMENTALS AND LINK LAYER PART A
5105: BHARATHIDASAN ENGINEERING COLLEGE NATTARMPALLI 635 854. NAME OF THE STAFF : R.ANBARASAN DESIGNATION & DEPARTMENT : AP/CSE SUBJECT CODE : CS 6551 SUBJECT NAME : COMPUTER NETWORKS UNIT I FUNDAMENTALS
Da t e: August 2 0 th a t 9: :00 SOLUTIONS
Interne t working, Examina tion 2G1 3 0 5 Da t e: August 2 0 th 2 0 0 3 a t 9: 0 0 1 3:00 SOLUTIONS 1. General (5p) a) Place each of the following protocols in the correct TCP/IP layer (Application, Transport,
Last time. Wireless link-layer. Introduction. Characteristics of wireless links wireless LANs networking. Cellular Internet access
Last time Wireless link-layer Introduction Wireless hosts, base stations, wireless links Characteristics of wireless links Signal strength, interference, multipath propagation Hidden terminal, signal fading
Lecture 18 Overview. Last Lecture. This Lecture. Next Lecture. Internet Protocol (1) Internet Protocol (2)
Last Lecture Internet Protocol (1) This Lecture Internet Protocol (2) Lecture 18 Overview Source: chapters 19.1, 19.2, 22,1 22.2, 26.6 Next Lecture Transport Control Protocol (1) Source: chapters 24.1,
OSI Network Layer. Network Fundamentals Chapter 5. Version Cisco Systems, Inc. All rights reserved. Cisco Public 1
OSI Network Layer Network Fundamentals Chapter 5 Version 4.0 1 Objectives Identify the role of the Network Layer, as it describes communication from one end device to another end device. Examine the most
Lesson 5 TCP/IP suite, TCP and UDP Protocols. Chapter-4 L05: "Internet of Things ", Raj Kamal, Publs.: McGraw-Hill Education
Lesson 5 TCP/IP suite, TCP and UDP Protocols 1 TCP/IP Suite: Application layer protocols TCP/IP Suite set of protocols with layers for the Internet TCP/IP communication 5 layers: L7, L4, L3, L2 and L1
CSE/EE 461 The Network Layer. Application Presentation Session Transport Network Data Link Physical
CSE/EE 461 The Network Layer Application Presentation Session Transport Network Data Link Physical This Lecture Focus: What to do when one wire isn t big enough? Point to point link Broadcast link (Ethernet
Network Layer: Control/data plane, addressing, routers
Network Layer: Control/data plane, addressing, routers CS 352, Lecture 10 http://www.cs.rutgers.edu/~sn624/352-s19 Srinivas Narayana (heavily adapted from slides by Prof. Badri Nath and the textbook authors)
EC441 Fall 2018 Introduction to Computer Networking Chapter4: Network Layer Data Plane
EC441 Fall 2018 Introduction to Computer Networking Chapter4: Network Layer Data Plane This presentation is adapted from slides produced by Jim Kurose and Keith Ross for their book, Computer Networking:
Lecture 8. Network Layer (cont d) Network Layer 1-1
Lecture 8 Network Layer (cont d) Network Layer 1-1 Agenda The Network Layer (cont d) What is inside a router Internet Protocol (IP) IPv4 fragmentation and addressing IP Address Classes and Subnets Network
Goals and topics. Verkkomedian perusteet Fundamentals of Network Media T Circuit switching networks. Topics. Packet-switching networks
Verkkomedian perusteet Fundamentals of Media T-110.250 19.2.2002 Antti Ylä-Jääski 19.2.2002 / AYJ lide 1 Goals and topics protocols Discuss how packet-switching networks differ from circuit switching networks.
Data Communications and Networks Spring Syllabus and Reading Assignments
Data Communications and Networks Spring 2018 Syllabus and Assignments Revision Date: January 24, 2018 Course : This course teaches the design and implementation techniques essential for engineering robust
BLM6196 COMPUTER NETWORKS AND COMMUNICATION PROTOCOLS
BLM6196 COMPUTER NETWORKS AND COMMUNICATION PROTOCOLS Prof. Dr. Hasan Hüseyin BALIK (2 nd Week) 2. Protocol Architecture, TCP/IP, and Internet-Based Applications 2.Outline The Need for a Protocol Architecture
Lecture 3. The Network Layer (cont d) Network Layer 1-1
Lecture 3 The Network Layer (cont d) Network Layer 1-1 Agenda The Network Layer (cont d) What is inside a router? Internet Protocol (IP) IPv4 fragmentation and addressing IP Address Classes and Subnets
SC/CSE 3213 Winter Sebastian Magierowski York University CSE 3213, W13 L8: TCP/IP. Outline. Forwarding over network and data link layers
SC/CSE 3213 Winter 2013 L8: TCP/IP Overview Sebastian Magierowski York University 1 Outline TCP/IP Reference Model A set of protocols for internetworking The basis of the modern IP Datagram Exchange Examples
Virtual Link Layer : Fundamentals of Computer Networks Bill Nace
Virtual Link Layer 14-740: Fundamentals of Computer Networks Bill Nace Material from Computer Networking: A Top Down Approach, 6 th edition. J.F. Kurose and K.W. Ross Administrivia 3 Lectures left HW #2
TCP /IP Fundamentals Mr. Cantu
TCP /IP Fundamentals Mr. Cantu OSI Model and TCP/IP Model Comparison TCP / IP Protocols (Application Layer) The TCP/IP subprotocols listed in this layer are services that support a number of network functions:
ACL Rule Configuration on the WAP371
Article ID: 5089 ACL Rule Configuration on the WAP371 Objective A network access control list (ACL) is an optional layer of security that acts as a firewall for controlling traffic in and out of a subnet.
MOBILE IP AND WIRELESS APPLICATION PROTOCOL
MOBILE IP AND WIRELESS APPLICATION PROTOCOL In this chapter, we look at two standards that provide application-level support for wireless networking: Mobile IP and Wireless Application Protocol (WAP).
Introduction to routing in the Internet
Introduction to routing in the Internet Internet architecture IPv4, ICMP, ARP Addressing, routing principles (Chapters 2 3 in Huitema) Internet-1 Internet Architecture Principles End-to-end principle by
Internet. Organization Addresses TCP/IP Protocol stack Forwarding. 1. Use of a globally unique address space based on Internet Addresses
Internet Organization Addresses TCP/IP Protocol stack Forwarding Jörg Liebeherr, 1998-2003 1 What defines the Internet? 1. Use of a globally unique address space based on Internet Addresses 2. Support
Paper solution Subject: Computer Networks (TE Computer pattern) Marks : 30 Date: 5/2/2015
Paper solution Subject: Computer Networks (TE Computer- 2012 pattern) Marks : 30 Date: 5/2/2015 Q1 a) What is difference between persistent and non persistent HTTP? Also Explain HTTP message format. [6]
Chapter 09 Network Protocols
Chapter 09 Network Protocols Copyright 2011, Dr. Dharma P. Agrawal and Dr. Qing-An Zeng. All rights reserved. 1 Outline Protocol: Set of defined rules to allow communication between entities Open Systems
Planning for Information Network
Planning for Information Network Lecture 7: Introduction to IPv6 Assistant Teacher Samraa Adnan Al-Asadi 1 IPv6 Features The ability to scale networks for future demands requires a limitless supply of
OSI and TCP/IP Models
EECS 3214 Department of Electrical Engineering & Computer Science York University 18-01-08 12:12 1 OSI and / Models 2 1 / Encapsula5on (Packet) (Frame) 3 / Model and Example Protocols A list of protocols
Introduction to Internetworking
Introduction to Internetworking Introductory terms Communications Network Facility that provides data transfer services An internet Collection of communications networks interconnected by bridges and/or
Data Communication Prof. A. Pal Department of Computer Science & Engineering Indian Institute of Technology, Kharagpur Lecture 34 TCP/ IP I
Data Communication Prof. A. Pal Department of Computer Science & Engineering Indian Institute of Technology, Kharagpur Lecture 34 TCP/ IP I Hello and welcome to today s lecture on TCP/IP. (Refer Slide
CSCI Networking Name:
CSCI 3335- Networking Name: Final Exam Problem 1: Error Checking and TCP (15 Points) (a) True or false: [2.5 points for circling correct answers, -1 points for each wrong answer] i. CRC can both correct
Configuring Firewall Filters (J-Web Procedure)
Configuring Firewall Filters (J-Web Procedure) You configure firewall filters on EX Series switches to control traffic that enters ports on the switch or enters and exits VLANs on the network and Layer
Lecture 8. Basic Internetworking (IP) Outline. Basic Internetworking (IP) Basic Internetworking (IP) Service Model
Lecture 8 Basic Internetworking (IP) Reminder: Homework 3, Programming Project 2 due on Tuesday. An example internet is shown at right. Routers or gateways are used to connect different physical networks.
Concept Questions Demonstrate your knowledge of these concepts by answering the following questions in the space that is provided.
223 Chapter 19 Inter mediate TCP The Transmission Control Protocol/Internet Protocol (TCP/IP) suite of protocols was developed as part of the research that the Defense Advanced Research Projects Agency
Ref: A. Leon Garcia and I. Widjaja, Communication Networks, 2 nd Ed. McGraw Hill, 2006 Latest update of this lecture was on
IP Version 4 (IPv4) Header (Continued) Identification (16 bits): One of the parameters of any network is the maximum transmission unit (MTU) parameter. This parameter specifies the maximum size of the
Computer Networking: A Top Down Approach Featuring the. Computer Networks with Internet Technology, William
Dr. John Keeney 3BA33 TCP/IP protocol architecture with IP OSI Model Layers TCP/IP Protocol Architecture Layers TCP/IP Protocol Suite Application Layer Application Layer Telnet FTP HTTP DNS RIPng SNMP
The Internet. The Internet is an interconnected collection of netw orks.
The Internet The Internet is an interconnected collection of netw orks. Internetw orking-1 Internetworking! Communications Network: A facility that provides a data transfer service among stations attached
Last time. BGP policy. Broadcast / multicast routing. Link virtualization. Spanning trees. Reverse path forwarding, pruning Tunneling
Last time BGP policy Broadcast / multicast routing Spanning trees Source-based, group-shared, center-based Reverse path forwarding, pruning Tunneling Link virtualization Whole networks can act as an Internet
Chapter 2 Communicating Over the Network
Chapter 2 Communicating Over the Network Elements of Communication Communicating the Messages Continuous stream of bits 00101010100101010101010101010101010 I have to wait Single communications (e.g. video,
Hands-On IP for TeleCom Technicians Internetworking, TCP/IP, VLANS, Wirelss and more...
Hands-On Internetworking, TCP/IP, VLANS, Wirelss 802.11 and more... Course Description The Internet Protocol Suite, commonly known as TCP/IP, forms the basis for the Internet and the next generation of
Lecture 8. Reminder: Homework 3, Programming Project 2 due on Thursday. Questions? Tuesday, September 20 CS 475 Networks - Lecture 8 1
Lecture 8 Reminder: Homework 3, Programming Project 2 due on Thursday. Questions? Tuesday, September 20 CS 475 Networks - Lecture 8 1 Outline Chapter 3 - Internetworking 3.1 Switching and Bridging 3.2
Virtual Link Layer : Fundamentals of Computer Networks Bill Nace
Virtual Link Layer 14-740: Fundamentals of Computer Networks Bill Nace Material from Computer Networking: A Top Down Approach, 6 th edition. J.F. Kurose and K.W. Ross Administrivia 3 Lectures left HW #2
Operating Systems. 16. Networking. Paul Krzyzanowski. Rutgers University. Spring /6/ Paul Krzyzanowski
Operating Systems 16. Networking Paul Krzyzanowski Rutgers University Spring 2015 1 Local Area Network (LAN) LAN = communications network Small area (building, set of buildings) Same, sometimes shared,
ETSF05/ETSF10 Internet Protocols Network Layer Protocols
ETSF05/ETSF10 Internet Protocols Network Layer Protocols 2016 Jens Andersson Agenda Internetworking IPv4/IPv6 Framentation/Reassembly ICMPv4/ICMPv6 IPv4 to IPv6 transition VPN/Ipsec NAT (Network Address
Position of IP and other network-layer protocols in TCP/IP protocol suite
Position of IP and other network-layer protocols in TCP/IP protocol suite IPv4 is an unreliable datagram protocol a best-effort delivery service. The term best-effort means that IPv4 packets can be corrupted,
CSE 4215/5431: Mobile Communications Winter Suprakash Datta
CSE 4215/5431: Mobile Communications Winter 2013 Suprakash Datta datta@cse.yorku.ca Office: CSEB 3043 Phone: 416-736-2100 ext 77875 Course page: http://www.cse.yorku.ca/course/4215 Some slides are adapted
EE 610 Part 2: Encapsulation and network utilities
EE 610 Part 2: Encapsulation and network utilities Objective: After this experiment, the students should be able to: i. Understand the format of standard frames and packet headers. Overview: The Open Systems
Assignment - 1 Chap. 1 Wired LAN s
Assignment - 1 Chap. 1 Wired LAN s 1. (1 Mark) 1. Draw the frame format of Ethernet. 2. What is unicast, multicast and broadcast address? 3. State the purpose of CRC field. 2. (5 Marks) 1. Explain how
CS475 Networks Lecture 8 Chapter 3 Internetworking. Ethernet or Wi-Fi).
Assignments Reading for Lecture 9: Section 3.3 3.2 Basic Internetworking (IP) Bridges and LAN switches from last section have limited ability CS475 Networks Lecture 8 Chapter 3 Internetworking is a logical
Lecture 11: Networks & Networking
Lecture 11: Networks & Networking Contents Distributed systems Network types Network standards ISO and TCP/IP network models Internet architecture IP addressing IP datagrams AE4B33OSS Lecture 11 / Page
IP Protocols. ALTTC/Oct
IP Protocols Internet or IP technology over the years has emerged as the most prominent data communication technology. TCP/IP protocol has become de-facto data comm standard throughout the world. It can
Introduction to TCP/IP networking
Introduction to TCP/IP networking TCP/IP protocol family IP : Internet Protocol UDP : User Datagram Protocol RTP, traceroute TCP : Transmission Control Protocol HTTP, FTP, ssh What is an internet? A set
Network Model. Why a Layered Model? All People Seem To Need Data Processing
Network Model Why a Layered Model? All People Seem To Need Data Processing Layers with Functions Packet Propagation Each router provides its services to support upper-layer functions. Headers (Encapsulation
CMPE 150/L : Introduction to Computer Networks. Chen Qian Computer Engineering UCSC Baskin Engineering Lecture 11
CMPE 150/L : Introduction to Computer Networks Chen Qian Computer Engineering UCSC Baskin Engineering Lecture 11 1 Midterm exam Midterm this Thursday Close book but one-side 8.5"x11" note is allowed (must
Networking: Network layer
control Networking: Network layer Comp Sci 3600 Security Outline control 1 2 control 3 4 5 Network layer control Outline control 1 2 control 3 4 5 Network layer purpose: control Role of the network layer
Chapter 6. The Network Layer
Chapter 6 The Network Layer 1 Network Layer Design Isues Store-and-Forward Packet Switching Services Provided to the Transport Layer Implementation of Connectionless Service Implementation of Connection-Oriented
The Interconnection Structure of. The Internet. EECC694 - Shaaban
The Internet Evolved from the ARPANET (the Advanced Research Projects Agency Network), a project funded by The U.S. Department of Defense (DOD) in 1969. ARPANET's purpose was to provide the U.S. Defense
ETSF10 Internet Protocols Transport Layer Protocols
ETSF10 Internet Protocols Transport Layer Protocols 2012, Part 2, Lecture 2.2 Kaan Bür, Jens Andersson Transport Layer Protocols Special Topic: Quality of Service (QoS) [ed.4 ch.24.1+5-6] [ed.5 ch.30.1-2]
Vorlesung Kommunikationsnetze
Picture 15 13 Vorlesung Kommunikationsnetze Prof. Dr. H. P. Großmann mit B. Wiegel sowie A. Schmeiser und M. Rabel Sommersemester 2009 Institut für Organisation und Management von Informationssystemen
TCP/IP Protocol Suite and IP Addressing
TCP/IP Protocol Suite and IP Addressing CCNA 1 v3 Module 9 10/11/2005 NESCOT CATC 1 Introduction to TCP/IP U.S. DoD created the TCP/IP model. Provides reliable data transmission to any destination under
Chapter 5 OSI Network Layer
Chapter 5 OSI Network Layer The protocols of the OSI model Network layer specify addressing and processes that enable Transport layer data to be packaged and transported. The Network layer encapsulation
The Technologies Behind the Internet
The Technologies Behind the Internet Lecture 3 Oct. 6, 2016 Lincoln Towers University Thursdays 7:30-9 pm, 150 WEA Community Room Instructor: Stephen Weinstein s.weinstein@ieee.org, (646) 267-5904 Lecture
Guide to Networking Essentials, 6 th Edition. Chapter 5: Network Protocols
Guide to Networking Essentials, 6 th Edition Chapter 5: Network Protocols Objectives Describe the purpose of a network protocol, the layers in the TCP/IP architecture, and the protocols in each TCP/IP
TRANSMISSION CONTROL PROTOCOL. ETI 2506 TELECOMMUNICATION SYSTEMS Monday, 7 November 2016
TRANSMISSION CONTROL PROTOCOL ETI 2506 TELECOMMUNICATION SYSTEMS Monday, 7 November 2016 ETI 2506 - TELECOMMUNICATION SYLLABUS Principles of Telecom (IP Telephony and IP TV) - Key Issues to remember 1.
Institute of Science and Technology 2067
2067 1. Explain the principles of application layer protocols. What do you mean by file transfer? What are the main relationship between transport layer and network layer? What are the transport layer
Sirindhorn International Institute of Technology Thammasat University
Name.............................. ID............... Section...... Seat No...... Thammasat University Final Exam: Semester, 205 Course Title: Introduction to Data Communications Instructor: Steven Gordon
(Chapters 2 3 in Huitema) E7310/Internet basics/comnet 1
Introduction to routing in the Internet Ethernet, switching vs. routing Internet architecture IPv4 Addressing Routing principles Protocols: IPv4, ICMP, ARP (Chapters 2 3 in Huitema) E7310/Internet basics/comnet
NETWORK PACKET ANALYSIS PROGRAM
NETWORK PACKET ANALYSIS PROGRAM Duration: 3 days (21 hours) Mode: 1. Instructor Led Class room Training and Labs 2. Online In this hands-on course, you will receive in-depth training on Protocol analysis
Interconnecting Networks with TCP/IP
Chapter 8 Interconnecting s with TCP/IP 1999, Cisco Systems, Inc. 8-1 Introduction to TCP/IP Internet TCP/IP Early protocol suite Universal 1999, Cisco Systems, Inc. www.cisco.com ICND 8-2 TCP/IP Protocol
Internet Protocols (chapter 18)
Internet Protocols (chapter 18) CSE 3213 Fall 2011 Internetworking Terms 1 TCP/IP Concepts Connectionless Operation Internetworking involves connectionless operation at the level of the Internet Protocol
IPv6: An Introduction
Outline IPv6: An Introduction Dheeraj Sanghi Department of Computer Science and Engineering Indian Institute of Technology Kanpur dheeraj@iitk.ac.in http://www.cse.iitk.ac.in/users/dheeraj Problems with
LOGICAL ADDRESSING. Faisal Karim Shaikh.
LOGICAL ADDRESSING Faisal Karim Shaikh faisal.shaikh@faculty.muet.edu.pk DEWSNet Group Dependable Embedded Wired/Wireless Networks www.fkshaikh.com/dewsnet IPv4 ADDRESSES An IPv4 address is a 32-bit address
CS 356: Computer Network Architectures. Lecture 10: IP Fragmentation, ARP, and ICMP. Xiaowei Yang
CS 356: Computer Network Architectures Lecture 10: IP Fragmentation, ARP, and ICMP Xiaowei Yang xwy@cs.duke.edu Overview Homework 2-dimension parity IP fragmentation ARP ICMP Fragmentation and Reassembly
The Transmission Control Protocol (TCP)
The Transmission Control Protocol (TCP) Application Services (Telnet, FTP, e-mail, WWW) Reliable Stream Transport (TCP) Unreliable Transport Service (UDP) Connectionless Packet Delivery Service (IP) Goals
TCP/IP THE TCP/IP ARCHITECTURE
TCP/IP-1 The Internet Protocol (IP) enables communications across a vast and heterogeneous collection of networks that are based on different technologies. Any host computer that is connected to the Internet
Department of Computer and IT Engineering University of Kurdistan. Network Layer. By: Dr. Alireza Abdollahpouri
Department of Computer and IT Engineering University of Kurdistan Network Layer By: Dr. Alireza Abdollahpouri What s the Internet: nuts and bolts view PC server wireless laptop cellular handheld millions
CMPE 80N: Introduction to Networking and the Internet
CMPE 80N: Introduction to Networking and the Internet Katia Obraczka Computer Engineering UCSC Baskin Engineering Lecture 17 CMPE 80N Spring'10 1 Announcements Next class: Presentation of fun projects