Schedule

Size: px
Start display at page:

Download "Schedule"

Transcription

1 Chapter 9 The Internet 9.1 Introduction 9.2 IP Datagrams 9.3 Fragmentation and reassembly 9.4 IP addresses 9.5 ARP and RARP 9.6 Routing Algorithms 9.7 ICMP 9.8 QoS support 9.9 PPP link layer protocol 9.10 IPv IPv6/IPv4 Interoperability

2 9.1 Introduction Internet Internet protocol Internet address or IP address

3 Internet Technology Internet Packets are like Postcards To/From addresses Finite but variable content Delivery failures Duplication (not normally a postal service) Disorderly arrival Variable delays Alternate routes/carriers

4 IP Addresses Assigned by the NIC (Network Information Center) 호스트의인터넷주소에대응하는숫자주소 4 개의숫자와마침표로구성 구성 네트웍주소 호스트주소 세계적으로고유함 NIC (NIDA: National Internet Development Agency) 에등록 국제적협조필요

5 IP Address Format IP 주소유형 Class A Class B Class C Class D 7 bits 24 bits 0 netid hostid [1-127] 1 0 netid netid hostid [ ] 14 bits 16 bits [0-255] netid netid netid hostid [ ] [0-255] 21 bits 8 bits 28 bits [0-255] Multicast address

6 Domain of IP 인터넷호스트의지정방식 계층적으로구성 Top-level domain 국가별 기관별 Sub Domain eg) sookmyung.ac.kr

7 Internet networking components and protocols

8 IP Adjunct protocols

9 9.2 IP Datagrams Basic unit of Internet transfer Analogous to physical network packet Composed of Header that contains source and destination Internet addresses, datagram type field, etc. Data area that contains data being carried Encapsulation IP datagram travels in physical network packet or frame Complete datagram is treated as data by the hardware TCP/IP defines standards for encapsulation on most network hardware

10 IP datagram Format

11 9.3 Fragmentation and reassembly

12 Network MTU Each network h/w technology imposes a fixed limit on the maximum size of a packet Size limit called Maximum Transmission Unit (MTU) Encapsulated datagram must be less than network MTU

13 Datagram Fragmentation Needed when datagram larger than network MTU over which it must travel Performed by routers Divides datagram into several, smaller datagrams called fragments Each fragment routed as independent datagram Final destination reassembles fragments

14 Datagram Fragmentation Details Each fragment is a datagram Router replicates initial datagram header for all fragments Offset field in header gives offset in original datagram for data in this fragment Fragment bit in header indicates this is a fragment Additional bit set in header to indicate last fragment

15 Example of Fragmentation Original datagram header Data1 400bytes Data2 400bytes Data3 400bytes header1 Data1 Fragment #1 (offset of 0) header2 Data2 Fragment #2 (offset of 400) header3 Data3 Fragment #3(offset of 800)

16 9.4 IP address

17 Subnet addressing

18 IP Address(1) 32bits 구성됨. Class A, Class B, Class C 가있음 인터넷을위한 IP Address 는공인기관으로부터할당받아야하며, Network Number 만을할당받음 Host Number 는네트웍관리자가원하는대로활용가능 Network (N) Host (H) bits 8bits 8bits 8bits Class A Class B Class C N H H H N N H H N N N H

19 IP Address(2) Class A Class B Class C N H N H N H Network # 갯수 1 개의 Network # 내의이용가능한 Host Number 수 첫 1Byte의십진수범위 Class A 1 ~ 126 (126 개 ) 개 (256^3-2) 1 ~ 126 Class B ~ (32766 개 ) 개 (256^2-2) 128 ~ 191 Class C ~ ( 개 ) 254 개 (256^1-2) 192 ~ 223

20 Network 별 Network Number 할당 LAN, WAN별로동일한 Network Number를이용함 WAN (serial link) 에서는 2개의 Host Number만이용하며 neta A 나머지는모두사용하지못함 netb 시스템의 Interface 별 로 Host Number 를이 netc B netd 용함

21 Sub Network Number 할당 4개의네트웍을위해 1 개의 Class B Network Number 만을이용함 네트웍별로다른 Network Number를가져야된다는것과상충함 Subnetmask로해결 시스템수가적을경우는 Class C의 Sub Network Number 를할당하는것이바람직 neta netc A netb B netd

22 Subnetmask Class A IP Addr 본래 netmask masking N H H H Class A IP Addr new netmask masking N H H H Class B IP Addr 본래 netmask masking N N H H Class B IP Addr new netmask masking N N H H Class C IP Addr 본래 netmask masking N N N H Class C IP Addr new netmask masking N N N H

23 Basic Network Configuration / / / /24 e0 B s0 s1 s0 s1 C / / /24 e0 e /16 e0 A e /24 D e / /16 e1 E /16 은 subnetmask 가 1bit~16bit 까지 1 임을의미하므로 을의미 /24 은 subnetmask 가 1bit~24bit 까지 1 임을의미하므로 을의미 e0 는 interface ethernet 0 를의미, s0 는 interface serial 0 를의미

24 IP Address 설정 (in Router) global config mode에서특정 interface를지정한후 IP Address 및 netmask 입력 description은생략되어도되지만 ip-address는꼭지정되어야함 shutdown이선언되어있는경우 no shutdown을입력해야함 Router(config)# interface interface-type [slot/]port Router(config-if)# description description-for-this-interface Router(config-if)# ip address ip-address netmask Router(config-if)# no shutdown Router(config-if)# Ctrl-Z Router#

25 Data Link Protocol 설정 LAN용 Interface에는별도로 data link protocol을설정하지않아도되지만 WAN용 Interface에는 IP Address와함께data link protocol 을설정해야함 대응하는라우터의 Interface에서도동일한 datalink protocol을지정해야함 HDLC, PPP, X25, Frame-Relay등을지정할수있음 CISCO 라우터에서는 default로 HDLC를이용함 PPP는표준이므로 CISCO 제품이아닌라우터와연결할때에는 PPP를이용할것을권장

26 Address 설정확인 Application telnet Transport telnet ping trace Application Transport telnet Internet ICMP trace Network Interface Hardware ICMP Internet trace Network Interface Hardware

27 Internet Address Resolution Protocol (ARP) Internet standard for dynamic address binding Allows machine A to find machine B s physical address knowing only B s Internet address Uses hardware broadcast ARP only used to map addresses within a single physical network, never across multiple networks ARP details ARP table is merely a cache Entries should time out and be invalidated Machine can broadcast new binding when it boots

28 ARP request and reply messages (2) Machine A broadcasts ARP request with B s IP address All machines on local net receive broadcast Machine B replies with its physical address Machine A adds B s address information to its table Machine A delivers packet directly to B

29 ARP request and reply messages (2) A broadcasts request for B (across local net only) A X B Y B replies to request A X B Y

30

31 Algorithm for Processing ARP Requests Extract sender s pair, (Ia, Ha) and update local ARP table If this is a request and the target is me Fill in target h/w address Exchange sender and target entries Set operation to reply Send reply back to requester

32 9.6 Routing algorithm Routing in an Internet Host delivers datagrams to directly connected machines Host sends datagrams that can not be delivered directly to router Routers forward datagrams to other routers Final router delivers datagram directly Routing protocol 데이타를 encapsulation해서전달하기위한 protocol로 IP, IPX, Appletalk등이이에해당된다. routing protocol이라는것은 IP packet, IPX packet, Appletalk packet등을전달할때경로정보를교환, 관리하기위한 protocol이다. IP는 routing protocol로 RIP, IGRP, OSPF, BGP등을, IPX는 Novell RIP, NLSP등을, Appletalk은 RTMP를이용한다.

33

34 Example internetwork topology Line ID, cost

35 Network Layer & Routing Protocol Network Layer 는시작 (source) 에서부터목적지 (destination) 까지 Packet 을전달 Routing Protocol 은라우터간에경로정보를주고받는 Protocol S S app pre ses trans net data phy r1 net data phy 1 2 r2 r3 net data phy r4 r5 net data phy 6 7 r6 r1 r3 r4 r6 net data phy D D app pre ses trans net data phy

36 Addressing & Network-level Routing Network Node 1 1,2,3,4 2 1,2 3 1,2,3, Detination Network Router Port

37 Efficient Routing Routing decisions based on table lookup Routing tables keep only network portion of addresses size proportional to number of networks not number of hosts Algorithm is efficient and easy to understand Easy to automate routing table update

38 경로결정영향요소 Bandwidth Delay Reliability Load MTU Hop Count money S 1 로직접가? 아니면 2, 3 으로가? D OSPF : Bandwidth RIP : hop count IGRP : Bandwidth, Delay, Reliability, Load, MTU

39 Routing 관련 Keyword advertising 혹은 announcement neighbor next hop 주기적 update cost = function (metric factors) RIP 의 metric factor 는 hop count IGRP 의 metric factor 는 bandwidth, delay, reliability, load, MTU OSPF 의 metric factor 는 bandwidth partial update 및 full update metric factor 및 metric cost Autonomous System Number (AS Number, ASN)

40 IP Routing 설정절차 Global Configuration IP routing protocol 중에하나를선택 Routing Update 에참여할자신의 Interface 에할당된 IP Network Address 선언 Interface Configuration IP Address 및 netmask 지정 RIP RIP / IGRP IGRP netb netd A B C neta netc nete

41 IP Routing Static Route vs. Dynamic Route Static Routing Static Route Default Route Dymanic Routing Interior Gateway Protocll RIP, IGRP(cisco), OSPF, EIGRP(cisco) Exterior Gateway Protocol BGP 라우터는 Static Route 및 Dynamic Route 를 Routing Table 에관리 라우터는동시에여러개의 Routing Protocol 을운영할수있음

42 Static routing

43 Dynamic routing Distance vector routing Link-state shortest-path-first routing link-state algorithm Dijkstra shortest-path-first algorithm Hierarchical routing Classless inter-domain routing Tunneling broadcasting routing reverse path forwarding spanning tree broadcast Multicast routing

44 Route & Routing Protocol Dynamic Route vs Static Route Dynamic Routing Protocol Distance Vector <-> Link State 주기적 update <-> 변화시즉시 update Singleprotocol <-> Multiprotocol IP, IPX 를동시에처리불능 <-> 동시처리가능 Interior <-> Exterior 네트웍그룹내 <-> 외부네트웍그룹간 Singlepath <-> Multipath Cost 가다른 link 를동시에이용하지않음 <-> 동시에이용함 Hierarachical <-> Flat 계층적인정보교환 <-> 계층적이지않음

45 Distance Vector Routing Protocol vs. Link State Routing Protocol Distance Vector 인접한라우터의관점으로전체네트웍정보를얻음 인접한라우터가갖고있는 cost 와인접한라우터까지의 cost 를더함 주기적으로정보를 update convergence time 이길다 Routing Table 을인접한라우터에게전달 Link State 각라우터가전체네트웍상태판단 자신이직접목적지까지의 cost 를계산함 변화즉시정보를 update convergence time 이짧다 변화된정보만을다른라우터들에게전달

46 RIP (Routing Information Protocol) RIP 은 RFC1058 에규정되어있다. RIP 은 BSD UNIX 의 routed 로처음발표되었었다. distance vector routing protocol interior gateway protocol metric factor 로 hop count 를이용하며가능한최대값은 15. sing path routing protocol 이다.

47 IGRP(Internet Gateway Routing Protocol) IGRP 는 cisco 사에서개발한것임. distance vector routing protocol interior gateway protocol metric factor 로 bandwidth, delay, reliability, load, mtu 를이용한다. 90 초마다 routing information 을전달한다. 추가적으로네트웍의변화를인지했을경우이를인접한라우터에게즉시전달해준다. 이런것을 Flash Update 라고한다. 이러한특성때문에 convergence time 이 rip 보다빠르다 multi path routing protocol 이다. 그렇지만기본적으로 single path routing 으로설정되어있으므로 multi path routing 을할수있도록설정해주어야한다.

48 OSPF(Open Shortest Path First) a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF) published as Request For Comments (RFC) 1247 was formed in 1988 to design an IGP based on the Shortest Path First (SPF) algorithm for use in the Internet Similar to the Interior Gateway Routing Protocol (IGRP) was created because in the mid-1980s, the Routing Information Protocol (RIP) was increasingly incapable of serving large, heterogeneous internetworks. a link-state routing protocol, contrasts with RIP and IGRP

49 . Exterior Gateway Protocol (EGP) - 외부 Gateway 프로토콜은 RFC-904 에문서화되어있고, RFC- 827 과 RFC-888 로대표되던초기의문안을개정

50 Router 구성 RAM 실행명령어 program bootstrap program IOS(Internetwork OS) active config file tables buffers NVRAM Flash backup config file IOS ROM bootstrap program subset IOS Interfaces LAN Interfaces (e, t, f) WAN Interfaces (s, hssi) Console Auxiliary

51 Router 환경설정수단 Console 이용 (async serial port) Auxiliary 이용 (auxiliary async serial port) LAN, WAN Interface를통한virtual terminal 이용 (telnet) TFTP 서버를이용 NMS 를이용 console virtual terminal virtual terminal auxiliary modem TFTP server NMS

52 Console 을이용한라우터접근 console Router con0 is now available Press RETURN to get started User Access Verification Password: Router> Router>enable Password: Router# Router#disable Router> Router>quit user mode prompt previledged mode prompt

53 라우터상태조회명령어 Router#show version Router#show process [cpu] Router#show protocols 실행명령어 program RAM bootstrap program IOS(Internetwork OS) active config file tables buffers NVRAM Flash ROM backup config file IOS bootstrap program subset IOS Router#show running-config Interfaces LAN Interfaces (e, t, f) WAN Interfaces (s, hssi) Console Auxiliary Router#show memory Router#show stacks Router#show buffers Router#show interface Router#show interface serial 0 Router#show flash Router#show startup-config Router#show config

54 Hierarchical routing over the Internet

55 Tunneling Example

56 9.7 ICMP Internet control message protocol an integral part of all IP implementation Used mostly by routers to report delivery or routing problems to original source Uses IP to carry control messages main functions error reporting reachability testing congestion control route-change notification performance measuring subnet addressing

57 ICMP messages Error reporting Destination Unreachable Time Exceeded Parameter error Reachability testing Echo Request/Reply Congestion Control Source Quench Route exchange Redirect (change route) Performance measuring Time-stamp request/reply Subnet addressing Address Mast Request/Reply

58 ICMP Message Encapsulation Type Code Checksum UNUSED (Must be Zero) Internet header + 64 bits of data ICMP message IP header IP data Frame header Frame data ICMP message has header and data areas Complete ICMP message is treated as data in IP datagram Complete IP datagram is treated as data in physical network frame

59 9.8 QoS support To meet more varies set of QoS requirements IntServ : integrated services DiffServ : differentiated services type of service field in IP packer header be used by routers

60 Integrated services Three different classes service in IntServ solution guaranteed class a specified Max. delay and jitter an assured level of bandwidth» are guaranteed for application involving the playout of real-time streams controlled load (as predictive) class no firm guarantees are provided a constant level of service equivalent to that obtained with the best-effort service at light loads for application involving real-time streams that have the capability of adjusting the amount of real-time data best-effort for text-based applications

61 Control mechanisms for QoS Token bucket filter an amount of buffer/queue space is reserved for each flow in a container called a bucket token: the quaranteed QoS requirements Weighted fair queuing a queue management to ensure the quaranteed QoS requirements compares the time-stamp of the packet Random early detection a queue management to ensure the quaranteed QoS requirements compare the queue length Resource reservation protocol (RSVP)

62 RSVP principles

63 RSVP 에서의데이터흐름

64 DiffServ

65 9.9 PPP link layer PSTN Cloud Intranet Cloud PPP NAS User (Client) Private Network IP connection 전통적인 Dial-up Service Layer 2 Mode Layer 3 Mode IP L2TP PPP IPX IP VTP IPX Link Layer Frame Layer 3 Protocol Tunneling Pakcet Format

66 Layer 2 Mode and Layer 3 Mode

67 PPTP Installation Process

68

TCP.IP.ppt

TCP.IP.ppt TCP/IP TCP/IP TCP/IP TCP/IP TCP/IP Internet Protocol _ IP Address Internet Protocol _ Subnet Mask Internet Protocol _ ARP(Address Resolution Protocol) Internet Protocol _ RARP(Reverse Address Resolution

More information

Chapter11OSPF

Chapter11OSPF OSPF 111 OSPF Link state Interior Gateway Protocol OSPF 1988 IETF OSPF workgroup OSPF RFC 2383 version 2 Chapter OSPF Version 2 OSPFIGP AS 1 1111 Convergence Traffic Distance Vector Link state OSPF (Flooding),

More information

SMB_ICMP_UDP(huichang).PDF

SMB_ICMP_UDP(huichang).PDF SMB(Server Message Block) UDP(User Datagram Protocol) ICMP(Internet Control Message Protocol) SMB (Server Message Block) SMB? : Microsoft IBM, Intel,. Unix NFS. SMB client/server. Client server request

More information

Microsoft Word doc

Microsoft Word doc TCP/IP 구조 1. I.P 구조설명 2. ARP 구조설명 3. TCP 구조설명 4. UDT 구조설명 5. RIP 구조설명 6. BOOTP 구조설명 7. TFTP 구조설명 destination addr source addr type data CRC 6 6 2 46-1500 4 type 0X0800 IP datagram 2 46-1500 type 0X0806

More information

Network seminar.key

Network seminar.key Intro to Network .. 2 4 ( ) ( ). ?!? ~! This is ~ ( ) /,,,???? TCP/IP Application Layer Transfer Layer Internet Layer Data Link Layer Physical Layer OSI 7 TCP/IP Application Layer Transfer Layer 3 4 Network

More information

歯최덕재.PDF

歯최덕재.PDF ISP Monitoring Tool OSPF SNMP, Metric MIB OSPFECMP 1 11 [6], Metric ISP(Internet Service Provider) Monitoring Tool, [5] , (Network Management System) SNMP ECMP Cost OSPF ECMP IGP(Interior Gateway Protocol)

More information

Microsoft PowerPoint - 06-IPAddress [호환 모드]

Microsoft PowerPoint - 06-IPAddress [호환 모드] Chapter 06 IP Address IP Address Internet address IP 계층에서사용되는식별자 32 bit 2 진주소 The address space of IPv4 is 2 32 or 4,294,967,296 netid 와 hostid 로구분 인터넷에서호스트와라우터를유일하게구분 IP Address Structure 2-Layer Hierarchical

More information

歯김병철.PDF

歯김병철.PDF 3G IETF byckim@mission.cnu.ac.kr kckim@konkuk.ac.kr Mobile IP WG Seamoby WG ROHC WG 3G IETF 3G IETF Mobile IP WG 3GIP Seamoby WG ROHC WG MIP WG / NAI Mobile IP / AAA IPv4 / MIP WG RFC2002bis MIPv6 INRIA

More information

Subnet Address Internet Network G Network Network class B networ

Subnet Address Internet Network G Network Network class B networ Structure of TCP/IP Internet Internet gateway (router) Internet Address Class A Class B Class C 0 8 31 0 netid hostid 0 16 31 1 0 netid hostid 0 24 31 1 1 0 netid hostid Network Address : (A) 1 ~ 127,

More information

bn2019_2

bn2019_2 arp -a Packet Logging/Editing Decode Buffer Capture Driver Logging: permanent storage of packets for offline analysis Decode: packets must be decoded to human readable form. Buffer: packets must temporarily

More information

TTA Verified : HomeGateway :, : (NEtwork Testing Team)

TTA Verified : HomeGateway :, : (NEtwork Testing Team) TTA Verified : HomeGateway :, : (NEtwork Testing Team) : TTA-V-N-05-006-CC11 TTA Verified :2006 6 27 : 01 : 2005 7 18 : 2/15 00 01 2005 7 18 2006 6 27 6 7 9 Ethernet (VLAN, QoS, FTP ) (, ) : TTA-V-N-05-006-CC11

More information

UDP Flooding Attack 공격과 방어

UDP Flooding Attack 공격과 방어 황 교 국 (fullc0de@gmail.com) SK Infosec Co., Inc MSS Biz. Security Center Table of Contents 1. 소개...3 2. 공격 관련 Protocols Overview...3 2.1. UDP Protocol...3 2.2. ICMP Protocol...4 3. UDP Flood Test Environment...5

More information

슬라이드 제목 없음

슬라이드 제목 없음 2006-09-27 경북대학교컴퓨터공학과 1 제 5 장서브넷팅과슈퍼넷팅 서브넷팅 (subnetting) 슈퍼넷팅 (Supernetting) 2006-09-27 경북대학교컴퓨터공학과 2 서브넷팅과슈퍼넷팅 서브넷팅 (subnetting) 하나의네트워크를여러개의서브넷 (subnet) 으로분할 슈퍼넷팅 (supernetting) 여러개의서브넷주소를결합 The idea

More information

슬라이드 1

슬라이드 1 DHCP (Dynamic Host Configuration Protocol) Oct 2006 Technical Support Div. Tel : 031-739-6800 Mail : support@corecess.com DHCP Motivations Automatic network configuration for clients No administrator intervention

More information

PCServerMgmt7

PCServerMgmt7 Web Windows NT/2000 Server DP&NM Lab 1 Contents 2 Windows NT Service Provider Management Application Web UI 3 . PC,, Client/Server Network 4 (1),,, PC Mainframe PC Backbone Server TCP/IP DCS PLC Network

More information

歯I-3_무선통신기반차세대망-조동호.PDF

歯I-3_무선통신기반차세대망-조동호.PDF KAIST 00-03-03 / #1 1. NGN 2. NGN 3. NGN 4. 5. 00-03-03 / #2 1. NGN 00-03-03 / #3 1.1 NGN, packet,, IP 00-03-03 / #4 Now: separate networks for separate services Low transmission delay Consistent availability

More information

PowerPoint 프레젠테이션

PowerPoint 프레젠테이션 (Host) set up : Linux Backend RS-232, Ethernet, parallel(jtag) Host terminal Target terminal : monitor (Minicom) JTAG Cross compiler Boot loader Pentium Redhat 9.0 Serial port Serial cross cable Ethernet

More information

BGP AS AS BGP AS BGP AS 65250

BGP AS AS BGP AS BGP AS 65250 BGP AS 65000 AS 64500 BGP AS 65500 BGP AS 65250 0 7 15 23 31 BGP Message 16byte Marker 2byte Length, 1byte Type. Marker : BGP Message, BGP Peer.Message Type Open Marker 1.. Length : BGP Message,

More information

PWR PWR HDD HDD USB USB Quick Network Setup Guide xdsl/cable Modem PC DVR 1~3 1.. DVR DVR IP xdsl Cable xdsl Cable PC PC DDNS (

PWR PWR HDD HDD USB USB Quick Network Setup Guide xdsl/cable Modem PC DVR 1~3 1.. DVR DVR IP xdsl Cable xdsl Cable PC PC DDNS ( PWR PWR HDD HDD USB USB Quick Network Setup Guide xdsl/cable Modem PC DVR 1~3 1.. DVR DVR IP xdsl Cable xdsl Cable PC PC DDNS (http://ddns.hanwha-security.com) Step 1~5. Step, PC, DVR Step 1. Cable Step

More information

歯이시홍).PDF

歯이시홍).PDF cwseo@netsgo.com Si-Hong Lee duckling@sktelecom.com SK Telecom Platform - 1 - 1. Digital AMPS CDMA (IS-95 A/B) CDMA (cdma2000-1x) IMT-2000 (IS-95 C) ( ) ( ) ( ) ( ) - 2 - 2. QoS Market QoS Coverage C/D

More information

1217 WebTrafMon II

1217 WebTrafMon II (1/28) (2/28) (10 Mbps ) Video, Audio. (3/28) 10 ~ 15 ( : telnet, ftp ),, (4/28) UDP/TCP (5/28) centralized environment packet header information analysis network traffic data, capture presentation network

More information

PowerPoint 프레젠테이션

PowerPoint 프레젠테이션 Reasons for Poor Performance Programs 60% Design 20% System 2.5% Database 17.5% Source: ORACLE Performance Tuning 1 SMS TOOL DBA Monitoring TOOL Administration TOOL Performance Insight Backup SQL TUNING

More information

[ 네트워크 1] 3 주차 1 차시. IPv4 주소클래스 3 주차 1 차시 IPv4 주소클래스 학습목표 1. IP 헤더필드의구성을파악하고요약하여설명할수있다. 2. Subnet ID 및 Subnet Mask 를설명할수있고, 각클래스의사용가능한호스트수와사설 IP 주소및네트

[ 네트워크 1] 3 주차 1 차시. IPv4 주소클래스 3 주차 1 차시 IPv4 주소클래스 학습목표 1. IP 헤더필드의구성을파악하고요약하여설명할수있다. 2. Subnet ID 및 Subnet Mask 를설명할수있고, 각클래스의사용가능한호스트수와사설 IP 주소및네트 3 주차 1 차시 IPv4 주소클래스 학습목표 1. IP 헤더필드의구성을파악하고요약하여설명할수있다. 2. Subnet ID 및 Subnet Mask 를설명할수있고, 각클래스의사용가능한호스트수와사설 IP 주소및네트워크주소와 브로드캐스트주소를설명할수있다. 학습내용 1 : IP 헤더필드구성 1. Network Layer Fields 2. IP 헤더필드의구성 1)

More information

Microsoft PowerPoint - 2.Catalyst Switch Intrastructure Protection_이충용_V1 0.ppt [호환 모드]

Microsoft PowerPoint - 2.Catalyst Switch Intrastructure Protection_이충용_V1 0.ppt [호환 모드] Catalyst Switch Infrastructure Protection Cisco Systems Korea SE 이충용 (choolee@cisco.com) Overview DoS (Denial of Service) 공격대상 - Server Resource - Network Resource - Network devices (Routers, Firewalls

More information

chapter4

chapter4 Basic Netw rk 1. ก ก ก 2. 3. ก ก 4. ก 2 1. 2. 3. 4. ก 5. ก 6. ก ก 7. ก 3 ก ก ก ก (Mainframe) ก ก ก ก (Terminal) ก ก ก ก ก ก ก ก 4 ก (Dumb Terminal) ก ก ก ก Mainframe ก CPU ก ก ก ก 5 ก ก ก ก ก ก ก ก ก ก

More information

歯III-2_VPN-김이한.PDF

歯III-2_VPN-김이한.PDF VPN 2000. 2. 23 yihan@kt.co.kr kr VPN 2 (1) (Private WAN) ( Virtual Private Networks ) Headquarters Public Network VPN Telecommuter Branch Office Mobile Worker 3 4 VPN VPN ( ) / Outsourcing Outsourcing

More information

Schedule

Schedule 1 Standards for Contents Delivery Systems - TCP/IP Model 2 2.1 TCP/IP Model 2.2 Transmission : Backbone Layer 2.3 Device Link 2.4 IP and Routing Layer 2.5 TCP / UDP Layer 2.6 RTP/RTCP : Application Layer

More information

슬라이드 제목 없음

슬라이드 제목 없음 (JTC1/SC6) sjkoh@knu.ac.kr JTC1 JTC1/SC6/WG7 ECTP/RMCP/MMC (JTC1/SC6) 2/48 JTC1 ISO/IEC JTC1 Joint Technical Committee 1 ( ) ISO/TC 97 ( ) IEC/TC 83 ( ) Information Technology (IT) http://www.jtc1.org

More information

USB USB DV25 DV25 REC SRN-475S REC SRN-475S LAN POWER LAN POWER Quick Network Setup Guide xdsl/cable Modem PC DVR 1~3 1.. DVR DVR IP xdsl Cable xdsl C

USB USB DV25 DV25 REC SRN-475S REC SRN-475S LAN POWER LAN POWER Quick Network Setup Guide xdsl/cable Modem PC DVR 1~3 1.. DVR DVR IP xdsl Cable xdsl C USB USB DV25 DV25 REC SRN-475S REC SRN-475S LAN POWER LAN POWER Quick Network Setup Guide xdsl/cable Modem PC DVR 1~3 1.. DVR DVR IP xdsl Cable xdsl Cable PC PC Step 1~5. Step, PC, DVR Step 1. Cable Step

More information

본교재는수업용으로제작된게시물입니다. 영리목적으로사용할경우저작권법제 30 조항에의거법적처벌을받을수있습니다. [ 실습 ] 스위치장비초기화 1. NVRAM 에저장되어있는 'startup-config' 파일이있다면, 삭제를실시한다. SWx>enable SWx#erase sta

본교재는수업용으로제작된게시물입니다. 영리목적으로사용할경우저작권법제 30 조항에의거법적처벌을받을수있습니다. [ 실습 ] 스위치장비초기화 1. NVRAM 에저장되어있는 'startup-config' 파일이있다면, 삭제를실시한다. SWx>enable SWx#erase sta [ 실습 ] 스위치장비초기화 1. NVRAM 에저장되어있는 'startup-config' 파일이있다면, 삭제를실시한다. SWx>enable SWx#erase startup-config Erasing the nvram filesystem will remove all configuration files Continue? [confirm] ( 엔터 ) [OK] Erase

More information

Switching

Switching Switching 강의의목표 Switching/Switching Network의필요성을이해한다. 세가지대표적교환기술에열거하고그차이를설명할수있다. 각교환기술의장, 단점을비교하여설명할수있다. Packet Switching 에서 Fairness 문제와 Pipelining 을 패킷크기와연계하여설명할수있다. Soft Switch 개념을이해하고설명할수있다. 교재 Chapter

More information

Microsoft PowerPoint - ch07.ppt

Microsoft PowerPoint - ch07.ppt chapter 07. 시스코라우터기본동작 한빛미디어 -1- 학습목표 시스코라우터외적, 내적구성요소 시스코라우터부팅단계 시스코라우터명령어모드 한빛미디어 -2- 시스코라우터구성요소 라우터외부구성요소 (1) [ 그림 ] 2600 라우터전면도 인터페이스카드 전원부 LED 라우터조건 한빛미디어 -3- 시스코라우터구성요소 라우터외부구성요소 (2) [ 그림 ] VTY 를이용한라우터접속

More information

DBPIA-NURIMEDIA

DBPIA-NURIMEDIA 무선 센서 네트워크 환경에서 링크 품질에 기반한 라우팅에 대한 효과적인 싱크홀 공격 탐지 기법 901 무선 센서 네트워크 환경에서 링크 품질에 기반한 라우팅에 대한 효과적인 싱크홀 공격 탐지 기법 (A Effective Sinkhole Attack Detection Mechanism for LQI based Routing in WSN) 최병구 조응준 (Byung

More information

SRC PLUS 제어기 MANUAL

SRC PLUS 제어기 MANUAL ,,,, DE FIN E I N T R E A L L O C E N D SU B E N D S U B M O TIO

More information

시스코 무선랜 설치운영 매뉴얼(AP1200s_v1.1)

시스코 무선랜 설치운영 매뉴얼(AP1200s_v1.1) [ Version 1.3 ] Access Point,. Access Point IP 10.0.0.1, Subnet Mask 255.255.255.224, DHCP Client. DHCP Server IP IP,, IP 10.0.0.X. (Tip: Auto Sensing Straight, Cross-over.) step 1]. step 2] LAN. step

More information

Microsoft Word Question.doc

Microsoft Word Question.doc 1. Switching 1. Frame-relay 구성 PVC만을사용할수있으며어떠한 Dynamic Circuit도허용되지않는다. FR 구간을설정하시오 A. R3, R4, R5를제외한나머지 Router에서는 Sub interface를사용할수없다. B. R4, R5는 FR point-to-point로구성하고, R3는 multipoint로구성하되반드시 subinterface를이용하여구성하시오.

More information

DBPIA-NURIMEDIA

DBPIA-NURIMEDIA 논문 10-35-03-03 한국통신학회논문지 '10-03 Vol. 35 No. 3 원활한 채널 변경을 지원하는 효율적인 IPTV 채널 관리 알고리즘 준회원 주 현 철*, 정회원 송 황 준* Effective IPTV Channel Control Algorithm Supporting Smooth Channel Zapping HyunChul Joo* Associate

More information

untitled

untitled CAN BUS RS232 Line Ethernet CAN H/W FIFO RS232 FIFO IP ARP CAN S/W FIFO TERMINAL Emulator COMMAND Interpreter ICMP TCP UDP PROTOCOL Converter TELNET DHCP C2E SW1 CAN RS232 RJ45 Power

More information

°í¼®ÁÖ Ãâ·Â

°í¼®ÁÖ Ãâ·Â Performance Optimization of SCTP in Wireless Internet Environments The existing works on Stream Control Transmission Protocol (SCTP) was focused on the fixed network environment. However, the number of

More information

Microsoft PowerPoint - ch10.ppt

Microsoft PowerPoint - ch10.ppt chapter 10. 라우팅프로토콜설정 한빛미디어 -1- 학습목표 시스코라우터의스태틱라우팅설정 시스코라우터의 RIP 설정 시스코라우터의 IGRP 설정 시스코라우터의 EIGRP 설정 시스코라우터의 OSPF 설정 한빛미디어 -2- 시스코라우터의스태틱라우팅설정 스태틱라우팅 루트 (route) / 라우팅테이블 스태틱라우팅예 [ 그림 ] 스태틱라우팅예 (1) 한빛미디어

More information

SLA QoS

SLA QoS SLA QoS 2002. 12. 13 Email: really97@postech.ac.kr QoS QoS SLA POS-SLMS (-Service Level Monitoring System) SLA (Service Level Agreement) SLA SLA TM Forum SLA QoS QoS SLA SLA QoS QoS SLA POS-SLMS ( Service

More information

ARMBOOT 1

ARMBOOT 1 100% 2003222 : : : () PGPnet 1 (Sniffer) 1, 2,,, (Sniffer), (Sniffer),, (Expert) 3, (Dashboard), (Host Table), (Matrix), (ART, Application Response Time), (History), (Protocol Distribution), 1 (Select

More information

hd1300_k_v1r2_Final_.PDF

hd1300_k_v1r2_Final_.PDF Starter's Kit for HelloDevice 1300 Version 11 1 2 1 2 3 31 32 33 34 35 36 4 41 42 43 5 51 52 6 61 62 Appendix A (cross-over) IP 3 Starter's Kit for HelloDevice 1300 1 HelloDevice 1300 Starter's Kit HelloDevice

More information

SK IoT IoT SK IoT onem2m OIC IoT onem2m LG IoT SK IoT KAIST NCSoft Yo Studio tidev kr 5 SK IoT DMB SK IoT A M LG SDS 6 OS API 7 ios API API BaaS Backend as a Service IoT IoT ThingPlug SK IoT SK M2M M2M

More information

Microsoft PowerPoint - 02 IPv6 Operation.ppt [호환 모드]

Microsoft PowerPoint - 02 IPv6 Operation.ppt [호환 모드] Module 2 IPv6 Operation Module 2 Outline Lesson 1: IPv6 Addressing Architecture Lesson 2: Enabling IPv6 on Cisco Routers Lesson 3: Neighbor Discovery Lesson 4: Cisco IOS Software IPv6 Configuration Example

More information

제20회_해킹방지워크샵_(이재석)

제20회_해킹방지워크샵_(이재석) IoT DDoS DNS (jaeseog@sherpain.net) (www.sherpain.net) DDoS DNS DDoS / DDoS(Distributed DoS)? B Asia Broadband B Bots connect to a C&C to create an overlay network (botnet) C&C Provider JP Corp. Bye Bye!

More information

Chap06(Interprocess Communication).PDF

Chap06(Interprocess Communication).PDF Interprocess Communication 2002 2 Hyun-Ju Park Introduction (interprocess communication; IPC) IPC data transfer sharing data event notification resource sharing process control Interprocess Communication

More information

ecorp-프로젝트제안서작성실무(양식3)

ecorp-프로젝트제안서작성실무(양식3) (BSC: Balanced ScoreCard) ( ) (Value Chain) (Firm Infrastructure) (Support Activities) (Human Resource Management) (Technology Development) (Primary Activities) (Procurement) (Inbound (Outbound (Marketing

More information

Remote UI Guide

Remote UI Guide Remote UI KOR Remote UI Remote UI PDF Adobe Reader/Adobe Acrobat Reader. Adobe Reader/Adobe Acrobat Reader Adobe Systems Incorporated.. Canon. Remote UI GIF Adobe Systems Incorporated Photoshop. ..........................................................

More information

歯A1.1함진호.ppt

歯A1.1함진호.ppt The Overall Architecture of Optical Internet ETRI ? ? Payload Header Header Recognition Processing, and Generation A 1 setup 1 1 C B 2 2 2 Delay line Synchronizer New Header D - : 20Km/sec, 1µsec200 A

More information

APOGEE Insight_KR_Base_3P11

APOGEE Insight_KR_Base_3P11 Technical Specification Sheet Document No. 149-332P25 September, 2010 Insight 3.11 Base Workstation 그림 1. Insight Base 메인메뉴 Insight Base Insight Insight Base, Insight Base Insight Base Insight Windows

More information

OPCTalk for Hitachi Ethernet 1 2. Path. DCOMwindow NT/2000 network server. Winsock update win95. . . 3 Excel CSV. Update Background Thread Client Command Queue Size Client Dynamic Scan Block Block

More information

Chapter 18 - William Stallings, Data and Computer Communications, 8/e

Chapter 18 - William Stallings, Data and Computer Communications, 8/e Internet Protocol (IP) v4 IP version 4 Defined in RFC 791 Two parts Specification of interface with a higher layer (TCP) Specification of actual protocol format and mechanisms Will (eventually) be replaced

More information

solution map_....

solution map_.... SOLUTION BROCHURE RELIABLE STORAGE SOLUTIONS ETERNUS FOR RELIABILITY AND AVAILABILITY PROTECT YOUR DATA AND SUPPORT BUSINESS FLEXIBILITY WITH FUJITSU STORAGE SOLUTIONS kr.fujitsu.com INDEX 1. Storage System

More information

歯Cablexpert제안서.PDF

歯Cablexpert제안서.PDF : CableXpert TM TEL:02-576-0471 / E-mail : lab@dakos.net 1. (CableXpert TM :CME1100 ) (PSTN) 100,. (CableXpert TM ).,,.... : : 324-1 2 : 02-576-0471 : 02-576-0474 : (E-mail : jangpo@dakos.net) 3. 1) S/W

More information

Microsoft PowerPoint - 네트워크요약3

Microsoft PowerPoint - 네트워크요약3 IP Routing Configuration Routing IP Routing 은한네트워크에서다른네트워크로패킷을이동시키는과정과네트워크안의호스트에게패킷들을전달하는과정의미함. 정적라우팅 (Static Routing) 디폴트라우팅 (Default Routing) 동적라우팅 (Dynamic Routing) - Distance Vector - Link state Static

More information

자바-11장N'1-502

자바-11장N'1-502 C h a p t e r 11 java.net.,,., (TCP/IP) (UDP/IP).,. 1 ISO OSI 7 1977 (ISO, International Standards Organization) (OSI, Open Systems Interconnection). 6 1983 X.200. OSI 7 [ 11-1] 7. 1 (Physical Layer),

More information

歯T1-4김병철2.PDF

歯T1-4김병철2.PDF 2. Mobile IPv6 IPv6 Mobile IPv6 1 IPv6 Sufficient Address Space 128 IPv4 : 32 Fixed IP header + Extension Processing overhead checksum (flow label) Stateless Address Auto-configuration Neighbor Discovery

More information

1.LAN의 특징과 각종 방식

1.LAN의 특징과 각종 방식 0 Chapter 1. LAN I. LAN 1. - - - - Switching - 2. LAN - (Topology) - (Cable) - - 2.1 1) / LAN - - (point to point) 2) LAN - 3) LAN - 2.2 1) Bound - - (Twisted Pair) - (Coaxial cable) - (Fiber Optics) 1

More information

OMA Bcast Service Guide ATSC 3.0 (S33-2) T-UHDTV 송수신정합 Part.1 Mobile Broadcast (Open Mobile Alliance) 기반 Data Model ATSC 3.0 을위한확장 - icon, Channel No.

OMA Bcast Service Guide ATSC 3.0 (S33-2) T-UHDTV 송수신정합 Part.1 Mobile Broadcast (Open Mobile Alliance) 기반 Data Model ATSC 3.0 을위한확장 - icon, Channel No. Special Report_Special Theme UHDTV 지상파 UHD ESG 및 IBB 표준기술 이동관 MBC 기술연구소차장 2.1 개요 2.2 표준구성 TTA Journal Vol.167 l 63 OMA Bcast Service Guide ATSC 3.0 (S33-2) T-UHDTV 송수신정합 Part.1 Mobile Broadcast (Open Mobile

More information

1. GigE Camera Interface를 위한 최소 PC 사양 CPU : Intel Core 2 Duo, 2.4GHz이상 RAM : 2GB 이상 LANcard : Intel PRO/1000xT 이상 VGA : PCI x 16, VRAM DDR2 RAM 256MB

1. GigE Camera Interface를 위한 최소 PC 사양 CPU : Intel Core 2 Duo, 2.4GHz이상 RAM : 2GB 이상 LANcard : Intel PRO/1000xT 이상 VGA : PCI x 16, VRAM DDR2 RAM 256MB Revision 1.0 Date 11th Nov. 2013 Description Established. Page Page 1 of 9 1. GigE Camera Interface를 위한 최소 PC 사양 CPU : Intel Core 2 Duo, 2.4GHz이상 RAM : 2GB 이상 LANcard : Intel PRO/1000xT 이상 VGA : PCI x

More information

Interstage5 SOAP서비스 설정 가이드

Interstage5 SOAP서비스 설정 가이드 Interstage 5 Application Server ( Solaris ) SOAP Service Internet Sample Test SOAP Server Application SOAP Client Application CORBA/SOAP Server Gateway CORBA/SOAP Gateway Client INTERSTAGE SOAP Service

More information

ORANGE FOR ORACLE V4.0 INSTALLATION GUIDE (Online Upgrade) ORANGE CONFIGURATION ADMIN O

ORANGE FOR ORACLE V4.0 INSTALLATION GUIDE (Online Upgrade) ORANGE CONFIGURATION ADMIN O Orange for ORACLE V4.0 Installation Guide ORANGE FOR ORACLE V4.0 INSTALLATION GUIDE...1 1....2 1.1...2 1.2...2 1.2.1...2 1.2.2 (Online Upgrade)...11 1.3 ORANGE CONFIGURATION ADMIN...12 1.3.1 Orange Configuration

More information

untitled

untitled Push... 2 Push... 4 Push... 5 Push... 13 Push... 15 1 FORCS Co., LTD A Leader of Enterprise e-business Solution Push (Daemon ), Push Push Observer. Push., Observer. Session. Thread Thread. Observer ID.

More information

thesis

thesis CORBA TMN Surveillance System DPNM Lab, GSIT, POSTECH Email: mnd@postech.ac.kr Contents Motivation & Goal Related Work CORBA TMN Surveillance System Implementation Conclusion & Future Work 2 Motivation

More information

IPv6Q 현배경 > 인터넷의급속한성장 -> IP 주소의고갈 개인휴대통신장치의보급 network TV, VOD 단말기등의인터넷연결 가정용품제어장치의인터넷연결 > 새로운 IP 로의이행문제 IPv4 호스트와의호환성문제를고려하여야합 ~ IPv4 의취약점보완 QoS 지원 인증

IPv6Q 현배경 > 인터넷의급속한성장 -> IP 주소의고갈 개인휴대통신장치의보급 network TV, VOD 단말기등의인터넷연결 가정용품제어장치의인터넷연결 > 새로운 IP 로의이행문제 IPv4 호스트와의호환성문제를고려하여야합 ~ IPv4 의취약점보완 QoS 지원 인증 IPv6 개요 서울대학교전산과학과 정보통신연구실! 득즈 CJ M" L.!... @SNUINCLab 내용 Þ> IPv6 으 출현배경, 발전과정및특징 Þ> IPv6 헤더형식및옵션 Þ> IPv6 으 I Address 구조 Þ> Advanced Routing þ> QoS þ> IPv6 로의전이방법 þ> Auto Configuration þ> Security > 결론

More information

4. 스위치재부팅을실시한다. ( 만약, Save 질문이나오면 'no' 를실시한다.) SWx#reload System configuration has been modified. Save? [yes/no]: no Proceed with reload? [confirm] (

4. 스위치재부팅을실시한다. ( 만약, Save 질문이나오면 'no' 를실시한다.) SWx#reload System configuration has been modified. Save? [yes/no]: no Proceed with reload? [confirm] ( [ 실습 ] 스위치장비초기화 1. NVRAM 에저장되어있는 'startup-config' 파일이있다면, 삭제를실시한다. SWx>enable SWx#erase startup-config Erasing the nvram filesystem will remove all configuration files Continue? [confirm] ( 엔터 ) [OK] Erase

More information

Intra_DW_Ch4.PDF

Intra_DW_Ch4.PDF The Intranet Data Warehouse Richard Tanler Ch4 : Online Analytic Processing: From Data To Information 2000. 4. 14 All rights reserved OLAP OLAP OLAP OLAP OLAP OLAP is a label, rather than a technology

More information

Microsoft PowerPoint - ch02_인터넷 이해와 활용.ppt

Microsoft PowerPoint - ch02_인터넷 이해와 활용.ppt 컴퓨터 활용과 실습 원리를 알면 IT가 맛있다 chapter 2. 윈도우XP, 한글25, 엑셀23, 파워포인트23 인터넷 이해와 활용 www.hanb.co.kr -1- 학습목표 목차 통신과 네트워크의 개념 통신과 네트워크 컴퓨터 통신망 인터넷정의및역사 인터넷주소체계 인터넷 정의와 역사 인터넷 주소 웹서비스의정의및특징 웹 서비스 웹 브라우저의 기능 웹 브라우저

More information

Something that can be seen, touched or otherwise sensed

Something that can be seen, touched or otherwise sensed Something that can be seen, touched or otherwise sensed Things about an object Weight Height Material Things an object does Pen writes Book stores words Water have Fresh water Rivers Oceans have

More information

미래인터넷과 창조경제에 관한 제언 65 초록 과학기술과의 융합을 통해 창조경제를 이루는 근간인 인터넷은 현재 새로운 혁신적 인터넷, 곧 미래인터넷으로 진화하는 길목에 있다. 창조와 창업 정신으로 무장하여 미래인터넷 실현에 범국가적으로 매진하는 것이 창조경제 구현의 지름

미래인터넷과 창조경제에 관한 제언 65 초록 과학기술과의 융합을 통해 창조경제를 이루는 근간인 인터넷은 현재 새로운 혁신적 인터넷, 곧 미래인터넷으로 진화하는 길목에 있다. 창조와 창업 정신으로 무장하여 미래인터넷 실현에 범국가적으로 매진하는 것이 창조경제 구현의 지름 미래인터넷과 창조경제에 관한 제언 김대영 Internet & Security Policy Review 김대영 충남대학교 정보통신공학과 교수, dykim@cnu.kr 본 내용은 KISA의 공식적인 견해가 아님을 밝히며, 인용시 출처를 명시하여 주시기 바랍니다. 미래인터넷과 창조경제에 관한 제언 65 초록 과학기술과의 융합을 통해 창조경제를 이루는 근간인 인터넷은

More information

소개 TeraStation 을 구입해 주셔서 감사합니다! 이 사용 설명서는 TeraStation 구성 정보를 제공합니다. 제품은 계속 업데이트되므로, 이 설명서의 이미지 및 텍스트는 사용자가 보유 중인 TeraStation 에 표시 된 이미지 및 텍스트와 약간 다를 수

소개 TeraStation 을 구입해 주셔서 감사합니다! 이 사용 설명서는 TeraStation 구성 정보를 제공합니다. 제품은 계속 업데이트되므로, 이 설명서의 이미지 및 텍스트는 사용자가 보유 중인 TeraStation 에 표시 된 이미지 및 텍스트와 약간 다를 수 사용 설명서 TeraStation Pro II TS-HTGL/R5 패키지 내용물: 본체 (TeraStation) 이더넷 케이블 전원 케이블 TeraNavigator 설치 CD 사용 설명서 (이 설명서) 제품 보증서 www.buffalotech.com 소개 TeraStation 을 구입해 주셔서 감사합니다! 이 사용 설명서는 TeraStation 구성 정보를

More information

Microsoft PowerPoint - ch15.ppt

Microsoft PowerPoint - ch15.ppt chapter 15. CCNA 준비 -1- 학습목표 CCNA 시험대비총정리 -2- OSI 계층별특징 -3- 데이터의인캡슐레이션 -4- TCP/IP 모델과 OSI 계층모델의대응 -5- 캐이블 내 용 동축 STP UTP 광 대역폭 10-100 100-1G -10G 매체크기 큼 보통 작음 작음 전자기장애 작음 작음 큼 없음 최대길이 500m 100m 100m 100km

More information

Voice Portal using Oracle 9i AS Wireless

Voice Portal using Oracle 9i AS Wireless Voice Portal Platform using Oracle9iAS Wireless 20020829 Oracle Technology Day 1 Contents Introduction Voice Portal Voice Web Voice XML Voice Portal Platform using Oracle9iAS Wireless Voice Portal Video

More information

1. 회사소개 및 연혁 - 회사소개 회사소개 회사연혁 대표이사: 한종열 관계사 설립일 : 03. 11. 05 자본금 : 11.5억원 인 원 : 18명 에스오넷 미도리야전기코리 아 미도리야전기(일본) 2008 2007 Cisco Premier Partner 취득 Cisco Physical Security ATP 취득(진행) 서울시 강남구 도심방범CCTV관제센터

More information

/ TV 80 () DAB 2001 2002 2003 2004 2005 2010 Analog/Digital CATV Services EPG TV ( 60 ) TV ( Basic, Tier, Premiums 60 ) VOD Services Movies In Demand ( 20 ) Education N- VOD (24 ) Digital Music

More information

Microsoft PowerPoint - tem_5

Microsoft PowerPoint - tem_5 2014 년도 1 학기 (961805-501) 컴퓨터네트워크 2014.04.30 장문정 (cathmjang@gmail.com) 홍익대학교게임소프트웨어전공 네트워크계층 이장의목표 : 네트워크계층서비스에대한기본원리를이해 네트워크계층서비스모델 포워딩 (forwarding) vs. 라우팅 (routing) 네트워크계층프로토콜 : IP, DHCP, ICMP 등 라우팅알고리즘

More information

2005 2004 2003 2002 2001 2000 Security Surveillance Ubiquitous Infra Internet Infra Telematics Security Surveillance Telematics Internet Infra Solutions Camera Site (NETWORK) Monitoring & Control

More information

Assign an IP Address and Access the Video Stream - Installation Guide

Assign an IP Address and Access the Video Stream - Installation Guide 설치 안내서 IP 주소 할당 및 비디오 스트림에 액세스 책임 본 문서는 최대한 주의를 기울여 작성되었습니다. 잘못되거나 누락된 정보가 있는 경우 엑시스 지사로 알려 주시기 바랍니다. Axis Communications AB는 기술적 또는 인쇄상의 오류에 대해 책 임을 지지 않으며 사전 통지 없이 제품 및 설명서를 변경할 수 있습니다. Axis Communications

More information

Microsoft PowerPoint - ch13.ppt

Microsoft PowerPoint - ch13.ppt chapter 13. 네트워크보안과 ACL 한빛미디어 -1- 학습목표 계층별네트워크보안이슈 시스코라우터의 ACL 시스코라우터의 ACL 설정 한빛미디어 -2- 계층별네트워크보안이슈 데이터링크계층보안 ARP 스푸핑 MAC 플러딩 한빛미디어 -3- 계층별네트워크보안이슈 방화벽 [ 그림 ] 방화벽구조 한빛미디어 -4- 계층별네트워크보안이슈 침입탐지시스템 (IDS)

More information

Intro to Servlet, EJB, JSP, WS

Intro to Servlet, EJB, JSP, WS ! Introduction to J2EE (2) - EJB, Web Services J2EE iseminar.. 1544-3355 ( ) iseminar Chat. 1 Who Are We? Business Solutions Consultant Oracle Application Server 10g Business Solutions Consultant Oracle10g

More information

PBNM CIM(Common Information Model) DEN, COPS LDAP 21 CIM (Common Information Model) CIM, specification schema [7]

PBNM CIM(Common Information Model) DEN, COPS LDAP 21 CIM (Common Information Model) CIM, specification schema [7] (Policy-Based Network Management Technology) ((ksok, dsyun)@ktcokr) PBNM CIM(Common Information Model) DEN, COPS LDAP 21 CIM (Common Information Model) CIM, specification schema [7] 1 CIM core model hierarchy

More information

VZ94-한글매뉴얼

VZ94-한글매뉴얼 KOREAN / KOREAN VZ9-4 #1 #2 #3 IR #4 #5 #6 #7 ( ) #8 #9 #10 #11 IR ( ) #12 #13 IR ( ) #14 ( ) #15 #16 #17 (#6) #18 HDMI #19 RGB #20 HDMI-1 #21 HDMI-2 #22 #23 #24 USB (WLAN ) #25 USB ( ) #26 USB ( ) #27

More information

Microsoft PowerPoint - MobileIPv6_김재철.ppt

Microsoft PowerPoint - MobileIPv6_김재철.ppt Jaecheol Kim Multimedia & Communications Lab. jchkim@mmlab.snu.ac.kr 2003. 9. 8 Contents IPv4 Overview IPv6 Overview 2 MIP 의필요성 Portable Computer 이동하며사용하지않음 이동시통신연결의유지필요없음 DHCP의경우Mobile IP 필요없음 Wireless

More information

6강.hwp

6강.hwp ----------------6강 정보통신과 인터넷(1)------------- **주요 키워드 ** (1) 인터넷 서비스 (2) 도메인네임, IP 주소 (3) 인터넷 익스플로러 (4) 정보검색 (5) 인터넷 용어 (1) 인터넷 서비스******************************* [08/4][08/2] 1. 다음 중 인터넷 서비스에 대한 설명으로

More information

<C0CCBCBCBFB52DC1A4B4EBBFF82DBCAEBBE7B3EDB9AE2D313939392D382E687770>

<C0CCBCBCBFB52DC1A4B4EBBFF82DBCAEBBE7B3EDB9AE2D313939392D382E687770> i ii iii iv v vi 1 2 3 4 가상대학 시스템의 국내외 현황 조사 가상대학 플랫폼 개발 이상적인 가상대학시스템의 미래상 제안 5 웹-기반 가상대학 시스템 전통적인 교수 방법 시간/공간 제약을 극복한 학습동기 부여 교수의 일방적인 내용전달 교수와 학생간의 상호작용 동료 학생들 간의 상호작용 가상대학 운영 공지사항,강의록 자료실, 메모 질의응답,

More information

歯규격(안).PDF

歯규격(안).PDF ETRI ETRI ETRI ETRI WTLS PKI Client, WIM IS-95B VMS VLR HLR/AC WPKI Cyber society BTS BSC MSC IWF TCP/IP Email Server Weather Internet WAP Gateway WTLS PKI Client, WIM BSC VMS VLR HLR/AC Wireless Network

More information

Sena Device Server Serial/IP TM Version

Sena Device Server Serial/IP TM Version Sena Device Server Serial/IP TM Version 1.0.0 2005. 3. 7. Release Note Revision Date Name Description V1.0.0 2005-03-7 HJ Jeon Serial/IP 4.3.2 ( ) 210 137-130, : (02) 573-5422 : (02) 573-7710 email: support@sena.com

More information

Microsoft PowerPoint - LG RouterÁ¦Ç°(02-03)

Microsoft PowerPoint - LG RouterÁ¦Ç°(02-03) Cost Effective LA & WA Internetworking LR300F 0 데이콤 대량 공급 제품 LR300F 제품은 제품의 안정성 및 성능이 검증된 중소형 라우터로서, 사용자별로 실시간 대역폭(Bandwidth) 사용 정도를 모니터 할 수 있으며 향후 IP v6 지원이 가능한 제품입니다. 2개의 WA Port와 개의 Fast Ethernet Port

More information

Backup Exec

Backup Exec (sjin.kim@veritas.com) www.veritas veritas.co..co.kr ? 24 X 7 X 365 Global Data Access.. 100% Storage Used Terabytes 9 8 7 6 5 4 3 2 1 0 2000 2001 2002 2003 IDC (TB) 93%. 199693,000 TB 2000831,000 TB.

More information

(SW3704) Gingerbread Source Build & Working Guide

(SW3704) Gingerbread Source Build & Working Guide (Mango-M32F4) Test Guide http://www.mangoboard.com/ http://cafe.naver.com/embeddedcrazyboys Crazy Embedded Laboratory www.mangoboard.com cafe.naver.com/embeddedcrazyboys CRZ Technology 1 Document History

More information

Microsoft PowerPoint - 13_appl.ppt

Microsoft PowerPoint - 13_appl.ppt 최양희서울대학교컴퓨터공학부 Telnet File Transfer (FTP) E-mail (SMTP) Web (HTTP) Internet Telephony (SIP/SDP) Presence Multimedia (Audio/Video Broadcasting, AoD/VoD) Network Management (SNMP) 2005 Yanghee Choi 2 Remote

More information

PowerPoint Presentation

PowerPoint Presentation Data Protection Rapid Recovery x86 DR Agent based Backup - Physical Machine - Virtual Machine - Cluster Agentless Backup - VMware ESXi Deploy Agents - Windows - AD, ESXi Restore Machine - Live Recovery

More information

놀이동산미아찾기시스템

놀이동산미아찾기시스템 TinyOS를이용한 놀이동산미아찾기시스템 윤정호 (mo0o1234@nate.com) 김영익 (youngicks7@daum.net) 김동익 (dongikkim@naver.com) 1 목차 1. 프로젝트개요 2. 전체시스템구성도 3. Tool & Language 4. 데이터흐름도 5. Graphic User Interface 6. 개선해야할사항 2 프로젝트개요

More information

vm-웨어-앞부속

vm-웨어-앞부속 VMware vsphere 4 This document was created using the official VMware icon and diagram library. Copyright 2009 VMware, Inc. All rights reserved. This product is protected by U.S. and international copyright

More information

네트워크 안정성을 지켜줄 최고의 기술과 성능 TrusGuard는 국내 최초의 통합보안솔루션으로서 지난 5년간 약 4천여 고객 사이트에 구축 운영되면서 기술의 안정성과 성능면에서 철저한 시장 검증을 거쳤습니다. 또한 TrusGuard는 단독 기능 또는 복합 기능 구동 시

네트워크 안정성을 지켜줄 최고의 기술과 성능 TrusGuard는 국내 최초의 통합보안솔루션으로서 지난 5년간 약 4천여 고객 사이트에 구축 운영되면서 기술의 안정성과 성능면에서 철저한 시장 검증을 거쳤습니다. 또한 TrusGuard는 단독 기능 또는 복합 기능 구동 시 네트워크 보안도 안철수연구소입니다 통합 보안의 No.1 파트너, AhnLab TrusGuard 네트워크 환경을 수호하는 최고의 통합 보안 시스템 고성능 방화벽ㆍVPN Security 기술과 고품질 Integrated Security 기술의 강력한 결합 네트워크 안정성을 지켜줄 최고의 기술과 성능 TrusGuard는 국내 최초의 통합보안솔루션으로서 지난 5년간

More information

1

1 1 1....6 1.1...6 2. Java Architecture...7 2.1 2SDK(Software Development Kit)...8 2.2 JRE(Java Runtime Environment)...9 2.3 (Java Virtual Machine, JVM)...10 2.4 JVM...11 2.5 (runtime)jvm...12 2.5.1 2.5.2

More information

Microsoft PowerPoint - IPv6-세미나.ppt

Microsoft PowerPoint - IPv6-세미나.ppt Internet Protocol Version 6 1. IPv6 Overview Version 4 와 Version 6 의 Network Layer 비교 IPv6-3 IPv6 의향상된기능 더넓어진주소공간 자동설정 (Auto-configuration) 플러그앤플레이 (Plug & Play) Renumbering 단순한헤더 Checksum 계산을하지않는다. Option

More information

Microsoft PowerPoint - IPv6-세미나.ppt

Microsoft PowerPoint - IPv6-세미나.ppt Internet Protocol Version 6 1. IPv6 Overview Version 4 와 Version 6 의 Network Layer 비교 TCP/IP-3 IPv6 의향상된기능 더넓어진주소공간 자동설정 (Auto-configuration) 플러그앤플레이 (Plug & Play) Renumbering 단순한헤더 Checksum 계산을하지않는다.

More information

로봇SW교육원 강의자료

로봇SW교육원 강의자료 UNIT 01 컴퓨터네트워크소개 광운대학교로봇학부 최용훈 학습목표 2 컴퓨터네트워크와인터넷에대한전반적인이해를한다. 본과목에서사용할용어들에대해서살펴본다. 다양한전송매체를알아본다. 네트워크에서사용하는성능지표들을살펴본다. 본과목에서사용하는교재 3 주교재 Jim Kurose and Keith Ross, Computer Networking: A Top Down Approach,

More information