How many of you used the Internet today?
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1 How many of you used the Internet today? The radio guys could think of Ethernet like FM, but then the IT guys wouldn t understand. Dave Grant / dave@manoneng.com Page 1 of 17
2 How many know how it happened? We converted the Internet Address or URL that was entered into the browser address bar, by asking a DNS Server to convert the URL into a real Internet IP Address. Once the browser has the IP Address it makes a TCP/IP connection to port 80 on the Web Server and requested the site s default page. Dave Grant / dave@manoneng.com Page 2 of 17
3 Open Systems Interconnection Model OSI Part 1. Under the Wire OSI Model Line Standards on the Wire Bitrate / Timing Voltage levels Cable loss Pinouts Ethernet Speeds, types Protocol overhead Broadcast Multicast MAC Address LAN, WAN, Internet definition Host layers Media layers Data unit Layer Function Data 7. Application Network process to application 6. Presentation Data representation and encryption 5. Session Interhost communication Segment 4. Transport End-to-end connections and reliability Packet 3. Network Path determination and logical addressing Frame 2. Data Link Physical addressing (MAC & LLC) Bit 1. Physical Media, signal and binary transmission Dave Grant / dave@manoneng.com Page 3 of 17
4 OSI Part 2. On the Wire Protocol Standards for Levels 1 7 DNS, FTP, SSH, DHCP, POP, SMTP, HTTP are examples of protocols using the OSI Model What do you need to know? End to End - Connection vs. Connectionless Setup Time Round-Trips Header size Error tolerance Package - TCP, UDP, Multicast TCP is guaranteed delivery UDP is catch this if you can Multicast is a special type of UDP Dave Grant / dave@manoneng.com Page 4 of 17
5 Location - MAC Addressing, IP Addressing, Multicast Addressing Every NIC has a unique MAC Address Every NIC can have multiple IP Addresses Every IP Address has 65,535 ports each for TCP and UDP There are special ranges of IP Addresses Multicast Addresses o Non-Routable Intranet Address o o o x.x APIPA (Automatic Private IP Addressing) Routable Internet Address Name Resolution - DNS Maps a URL (Uniform Resource Locator) to an IP Address o = One IP Address can have many URL s Depends on a Registrar of Record for Internet Addressing Uses Port 53, for both UDP and TCP transactions DHCP, Sub-netting and Classless Inter Domain Routing (CIDR) Dave Grant / dave@manoneng.com Page 5 of 17
6 Ipconfig /all C:\Documents and Settings\dgrant>ipconfig /all Windows IP Configuration Host Name : TARKUS Primary Dns Suffix : p4private.hostnw.net Node Type : Hybrid IP Routing Enabled : No WINS Proxy Enabled : No DNS Suffix Search List... : p4private.hostnw.net, hostnw.net Ethernet adapter TARKUS - p4d: Connection-specific DNS Suffix. : Description : U.S. Robotics 10/100/1000 PCI NIC #2 Physical Address : C1-32-2B-FF DHCP Enabled : No IP Address : Subnet Mask : Default Gateway : DNS Servers : Primary WINS Server..... : Dave Grant / dave@manoneng.com Page 6 of 17
7 Netstat a C:\Documents and Settings\dgrant>netstat -a Active Connections Proto Local Address Foreign Address State TCP TARKUS:epmap TARKUS.p4private.hostnw.net:0 LISTENING TCP TARKUS:microsoft-ds TARKUS.p4private.hostnw.net:0 LISTENING TCP TARKUS:1042 TARKUS.p4private.hostnw.net:0 LISTENING TCP TARKUS:3389 TARKUS.p4private.hostnw.net:0 LISTENING TCP TARKUS:6051 TARKUS.p4private.hostnw.net:0 LISTENING TCP TARKUS:8019 TARKUS.p4private.hostnw.net:0 LISTENING TCP TARKUS:http TARKUS.p4private.hostnw.net:0 LISTENING TCP TARKUS:8080 TARKUS.p4private.hostnw.net:0 LISTENING TCP TARKUS:10080 TARKUS.p4private.hostnw.net:0 LISTENING UDP TARKUS:microsoft-ds *:* UDP TARKUS:isakmp *:* UDP TARKUS:1039 *:* UDP TARKUS:4500 *:* UDP TARKUS:ntp *:* UDP TARKUS:netbios-ns *:* UDP TARKUS:netbios-dgm *:* UDP TARKUS:ntp *:* Dave Grant / dave@manoneng.com Page 7 of 17
8 Routing Tables, Netmask, Default Gateway, Metric, Route Print C:\Documents and Settings\dgrant>route print IPv4 Route Table =========================================================================== Interface List 0x1... MS TCP Loopback interface 0x c1 32 2b ff... U.S. Robotics 10/100/1000 PCI NIC #2 =========================================================================== =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric Default Gateway: =========================================================================== Persistent Routes: None Dave Grant / dave@manoneng.com Page 8 of 17
9 Difference between a HUB and a Switch Dave Grant / dave@manoneng.com Page 9 of 17
10 Difference between a Switch and a Router Ethereal / WireShark Dave Grant / dave@manoneng.com Page 10 of 17
11 RoIP Mission Provide PTT services to Land Mobile Radio via IP Networks Provide Enhanced Remote Radio Control via IP Networks Provide IP equivalent to a 4 Wire Audio Circuit Standards Bridging System Interface (BSI) Draft APCO P25 Protocols RTP (Real Time Protocol) Internet Group Management Protocol Version 2 Differentiated Services Code Point (DSCP) Project 25 Console Subsystem Interface (P25 CSSI) Project 25 Inter Subsystem Interface (P-25 ISSI) Dave Grant / dave@manoneng.com Page 11 of 17
12 What s it take to make a call Dave Grant / dave@manoneng.com Page 12 of 17
13 VoIP Mission Provide for the delivery of Voice Communications via IP Networks Provide for the support of PSTN and Mobile Advanced Features Provide PTT services to Land Mobile Radio via IP Networks Standards SIP, RTP, IMS, Skype Protocols Session Initiation Protocol (SIP) RFC 3261 H.323v2 (International Telecommunications Union) RTP (Real Time Protocol) Internet Group Management Protocol Version 3 Multicast Listener Discovery Protocol Version 2 (MLDv2) for Source-Specific Multicast. Multicast VoIP Differentiated Services Code Point (DSCP) Project 25 Console Subsystem Interface (P25 CSSI) Project 25 Inter Subsystem Interface (P-25 ISSI) Dave Grant / dave@manoneng.com Page 13 of 17
14 What s it take to make a call Dave Grant / dave@manoneng.com Page 14 of 17
15 Typical usage of the OSI Layers Layer # Name Misc. examples IP suite SS7 [5] AppleTalk suite OSI suite IPX suite SNA UMTS 7 Application HL7, Modbus NNTP, SIP, SSI, DNS, FTP, Gopher, HTTP, NFS, NTP, DHCP, SMPP, SMTP, SNMP, Telnet, RIP, BGP INAP, MAP, TCAP, ISUP, TUP AFP, ZIP, RTMP, NBP FTAM, X.400, X.500, DAP, ROSE, RTSE, ACSE RIP, SAP APPC 6 Presentation TDI, ASCII, EBCDIC, MIDI, MPEG MIME, XDR, SSL, TLS (Not a separate layer) AFP ISO/IEC 8823, X.226, ISO/IEC , X Session Named Pipes, NetBIOS, SAP, Half Duplex, Full Duplex, Simplex, Sockets. Session establishment in TCP. SIP. (Not a separate ASP, ADSP, PAP ISO/IEC 8327, X.225, ISO/IEC , X.235 NWLink DLC? Dave Grant / dave@manoneng.com Page 15 of 17
16 SDP layer with standardized API.), RTP 4 Transport NBF TCP, UDP, SCTP DDP ISO/IEC 8073, TP0, TP1, TP2, TP3, TP4 (X.224), ISO/IEC 8602, X.234 SPX 3 Network NBF, Q.931, IS- IS IP, IPsec, ICMP, IGMP SCCP, MTP ATP (TokenTalk or EtherTalk) ISO/IEC 8208, X.25 (PLP), ISO/IEC 8878, X.223, ISO/IEC , CLNP X.233. IPX RRC (Radio Resource Control) Packet Data Convergence Protocol (PDCP) and BMC (Broadcast/Multicast Control) 2 Data Link (Ethernet), a/b/g/n MAC/LLC, 802.1Q (VLAN), ATM, HDP, FDDI, Fibre Channel, Frame Relay, HDLC, ISL, PPP, Q.921, OSPF, PPP, SLIP, PPTP, L2TP MTP, Q.710 LocalTalk, AppleTalk Remote Access, PPP ISO/IEC 7666, X.25 (LAPB), Token Bus, X.222, ISO/IEC LLC Type 1 and 2 IEEE framing, Ethernet II framing SDLC LLC (Logical Link Control), MAC (Media Access Control) Dave Grant / dave@manoneng.com Page 16 of 17
17 Token Ring, CDP, ARP (maps layer 3 to layer 2 address) 1 Physical RS-232, V.35, V.34, I.430, I.431, T1, E1, 10BASE-T, 100BASE-TX, POTS, SONET, SDH, DSL, a/b/g/n PHY MTP, Q.710 RS-232, RS-422, STP, PhoneNet X.25 (X.21bis, EIA/TIA-232, EIA/TIA-449, EIA-530, G.703) Twinax UMTS L1 (UMTS Physical Layer) Charts courtesy of Wiki. Dave Grant / dave@manoneng.com Page 17 of 17
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Layering in Networked computing OSI Model TCP/IP Model Protocols at each layer Learning outcomes Understand the need of layering in Networked computing Understand the OSI model and the tcp/ip model Understand
Domain 1.0 Network Technologies
ExamForce.com CompTIA Network+ N10-004 Study Guide 1 Domain 1.0 Network Technologies Chapter 1 1.1 Explain the function of common networking protocols TCP TCP is a connection oriented protocol that provides
Agenda L2 versus L3 Switching IP Protocol, IP Addressing IP Forwarding ARP and ICMP IP Routing First Hop Redundancy
Primer IP Technology L2 Ethernet Switching versus L3 routing IP Protocol, IP Addressing, IP Forwarding ARP and ICMP IP Routing, OSPF Basics First Hop Redundancy (HSRP) Agenda L2 versus L3 Switching IP
Communication Networks
Session 2. Application and Layered Architectures Dongsoo S. Kim Electrical and Computer Engineering. Indiana U. Purdue U. Indianapolis Communication s Various services and flexibility architectures Grouping
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
Additional Material. Suguru Yamaguchi Nara Institute of Science and Technology Department of Information Science Information Network I/No.
Additional Material Suguru Yamaguchi Nara Institute of Science and Technology Department of Information Science 2010 Information Network I/No.4 1 ! Protocol Suites for the Internet! Widely used from LANs
Number: Passing Score: 750 Time Limit: 120 min File Version: Microsoft
70-742 Number: 70-742 Passing Score: 750 Time Limit: 120 min File Version: 1.0 Sections 1. Understanding Local Area Networks 2. Defining Networks with the OSI Model 3. Understanding Wired and Wireless
TCP/IP Fundamentals. Introduction. Practice Practice : Name. Date Period
Name Date Period TCP/IP Fundamentals Introduction For the Network+ Certification exam, you should be able to identify the class of an IP address, an APIPA IP address, and a private IP address as well as
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
TCP/IP and the OSI Model
TCP/IP BASICS TCP/IP and the OSI Model TCP/IP BASICS The network protocol of the Internet Composed of six main protocols IP Internet Protocol UDP User Datagram Protocol TCP Transmission Control Protocol
Network Protocols. Terms you ll need to understand: Techniques you ll need to master:
3 Network Protocols Terms you ll need to understand: OSI Reference Model Application layer Presentation layer Session layer Transport layer Network layer Data Link layer Physical layer IEEE 802 specifications
CCNA Exploration Network Fundamentals
CCNA Exploration 4.0 1. Network Fundamentals The goal of this course is to introduce you to fundamental networking concepts and technologies. These online course materials will assist you in developing