PowerPoint Presentation
|
|
- えりか しまむね
- 7 years ago
- Views:
Transcription
1 3
2 DHCP (Dynamic Host Configuration Protocol) IP IP CIDR / dest net /24 default next hop hop /5/29 2
3 IP link layer Ethernet LAN this network cf. IP hostall /5/29 3
4 DHCP DHCP IP DHCP Mac IP netmask, default router etc. 2002/5/29 4
5 DHCPDHCP client DHCP server startup DHCPDISCOVER (broadcast) DHCPOFFER (unicast) DHCPREQUEST (broadcast) DHCPACK (unicast) (lease expire request/ack shutdown DHCPRELEASE (unicast) 2002/5/29 5
6 TCP (Transmission Control Protocol) UDP (User Datagram Protocol) DNS (Domain Name System) 2002/5/29 6
7 application transport network data link network physical data link network physical data link physical network data link physical network data link physical logical end-end transport network data link physical enhance application transport network data link physical 2002/5/29 7
8 application transport network data link network (TCP) physical data link network data link physical physical network data link physical network data link ( best-effort ), physical network data link (UDP) physical application (RTP) transport network data link physical logical end-end transport 2002/5/29 8
9 Multiplexing/demultiplexing Demultiplexing: segment header segment application-layer data Ht M Hn segment P1 M application transport network P3 receiver M M application transport network P4 M P2 application transport network 2002/5/29 9
10 Multiplexing/demultiplexing Multiplexing: 32 bits demultiplexing source port # dest port # multiplexing/demultiplexing: src, dest IP src, dest other header fields application data (message) well-known port TCP/UDP 2002/5/29 10
11 Well-Known Ports purple: [263] % cat /etc/services # # Network services, Internet style # 8.1 (Berkeley) 6/9/93 # BSDI services,v /04/17 20:55:18 jch Exp # tcpmux 1/tcp # TCP port multiplexer (RFC1078) echo 7/tcp echo 7/udp discard 9/tcp sink null discard 9/udp sink null systat 11/tcp users systat 11/udp users daytime 13/tcp daytime 13/udp netstat 15/tcp qotd 17/tcp quote qotd 17/udp quote chargen 19/tcp ttytst source chargen 19/udp ttytst source ftp 21/tcp ssh 22/tcp # Secure shell 2002/5/29 11
12 Multiplexing/demultiplexing: host A source port: x dest. port: 23 server B Web client host C source port:23 dest. port: x telnet Source IP: C Dest IP: B source port: y dest. port: 80 Source IP: C Dest IP: B source port: x dest. port: 80 Web client host A Source IP: A Dest IP: B source port: x dest. port: 80 Web server B Web server 2002/5/29 12
13 UDP: User Datagram Protocol [RFC 768] UDP best effort UDP UDP UDP 2002/5/29 13
14 UDP: 32 bits source port # dest port # length checksum UDP DNS SNMP Application UDP data (message) NFS UDP 2002/5/29 14
15 UDP checksum 0 10 checksum NO 1 YES UDP checksum 2002/5/29 15
16 Reliable Transport unreliableip reliable reliable Link 2002/5/29 16
17 TCP: Overview RFCs: 793, 1122, 1323, 2018, 2581 socket door point-to-point: reliable MSS: maximum segment size connection-oriented: TCP window size send & receive buffers application writes data TCP send buffer segment application reads data TCP receive buffer 2002/5/29 17 socket door handshaking
18 Pipelined protocols ack RTT (round trip time) throughput 2002/5/29 18
19 TCP segment structure URG: urgent data (generally not used) ACK: ACK # valid PSH: push data now (generally not used) RST, SYN, FIN: connection estab (setup, teardown commands) Internet checksum (as in UDP) 32 bits source port # dest port # head len sequence number acknowledgement number not used UAP R S F checksum rcvr window size ptr urgent data Options (variable length) application data (variable length) counting by bytes of data (not segments!) # bytes rcvr willing to accept 2002/5/29 19
20 TCP ACK Host A User types C ACK: cumulative ACK ACK host ACKs receipt Q: of echoed C A: RFC Seq=43, ACK=80 Host B Seq=42, ACK=79, data = C Seq=79, ACK=43, data = C simple telnet scenario host ACKs receipt of C, echoes back C time 2002/5/29 20
21 TCP: reliable data transfer event: (simplified) wait for event event: y event: ACK y ACK 2002/5/29 21
22 TCP: reliable data transfer Simplified TCP sender 00 sendbase = initial_sequence number 01 nextseqnum = initial_sequence number loop (forever) { 04 switch(event) 05 event: data received from application above 06 create TCP segment with sequence number nextseqnum 07 start timer for segment nextseqnum 08 pass segment to IP 09 nextseqnum = nextseqnum + length(data) 10 event: timer timeout for segment with sequence number y 11 retransmit segment with sequence number y 12 compue new timeout interval for segment y 13 restart timer for sequence number y 14 event: ACK received, with ACK field value of y 15 if (y > sendbase) { /* cumulative ACK of all data up to y */ 16 cancel all timers for segments with sequence numbers < y 17 sendbase = y 18 } 19 else { /* a duplicate ACK for already ACKed segment */ 20 increment number of duplicate ACKs received for y 21 if (number of duplicate ACKS received for y == 3) { 22 /* TCP fast retransmit */ 23 resend segment with sequence number y 24 restart timer for segment y 25 } 26 } /* end of loop forever */ 2002/5/29 22
23 TCP ACK [RFC 1122, RFC 2581] Event TCP Receiver action delayed ACK. 500ms ACK ACK cumulative ACK delayed ACK duplicate ACK ACK 2002/5/29 23
24 TCP: Host A Host B Host A Host B Seq=92, 8 bytes data Seq=92, 8 bytes data Seq=100, 20 bytes data ACK=100 ACK=120 ACK=100 X timeout Seq=100 timeout Seq=92 timeout loss Seq=92, 8 bytes data Seq=92, 8 bytes data ACK=120 ACK=100 time lost ACK scenario time premature timeout, cumulative ACKs 2002/5/29 24
25 TCP RcvBuffer = size of TCP Receive Buffer RcvWindow RcvWindow = amount of spare room in Buffer ACK RcvWindow receiver buffering 2002/5/29 25
26 RTT Q: Q: RTT SampleRTT: RTT ACK RTT cumulatively ACK SampleRTT premature timeout SampleRTT 2002/5/29 26
27 RTT EstimatedRTT = (1-x)*EstimatedRTT + x*samplertt x = 0.1 EstimtedRTT EstimatedRTT Timeout = EstimatedRTT + 4*Deviation Deviation = (1-x)*Deviation + x* SampleRTT-EstimatedRTT 2002/5/29 27
28 TCP Three way handshake: Control segment RcvWindow Step 1: TCP SYN Step 2: SYNACK Socket clientsocket = new Socket("hostname","port number"); Socket connectionsocket = welcomesocket.accept(); ACK Step 3: 2002/5/29 28
29 TCP client server client closes socket: clientsocket.close(); close FIN Step 1: TCP FIN Step 2: ACK FIN timed wait closed ACK FIN ACK close 2002/5/29 29
30 TCP Step 3: client ACK timed wait Step 4: FIN closing timed wait closed FIN ACK FIN ACK server closing closed 2002/5/29 30
31 TCP 2002/5/29 31
32 active OPEN CLOSED < create TCB ^ snd SYN passive OPEN CLOSE create TCB delete TCB V CLOSE LISTEN delete TCB rcv SYN SEND V snd SYN,ACK / snd SYN < > SYN rcv SYN SYN RCVD < SENT snd ACK rcv ACK of SYN / rcv SYN,ACK x snd ACK V V CLOSE ESTAB snd FIN CLOSE rcv FIN V snd FIN / snd ACK FIN < > CLOSE WAIT WAIT rcv FIN rcv ACK of FIN CLOSE snd ACK V x V snd FIN V FINWAIT-2 CLOSING LAST-ACK rcv ACK of FIN rcv ACK of FIN rcv FIN Timeout=2MSL x V x V snd ACK delete TCB > TIME WAIT > CLOSED TCP Connection State Diagram 2002/5/29 32
33 (congestion) 3 (?) 2002/5/29 33
34 Mbps Mbps 80Mbps Mbps 80Mbps Mbps Mbps 2002/5/29 34
35 Mbps Mbps 50Mbps Mbps 50Mbps Mbps Mbps 2002/5/29 35
36 ... packet-loss sensitive TCPRTT throughput RTT-sensitive IP 2002/5/29 36
37 End-end : end system single bit indicating (original) TCP end system congestion (SNA, DECbit, TCP/IP ECN, ATM) TCP (ECN) 2002/5/29 37
38 TCP end-end control congestion window size Congwin Congwin MSS w 1 RTT throughput = w * MSS RTT Bytes/sec 2002/5/29 38
39 TCP slow start Congwin congestion avoidance Congwin threshold Congwin slow start congestion avoidance Congwin Congwin 2002/5/29 39
40 TCP Slowstart Slowstart algorithm initialize: Congwin = 1 for (each segment ACKed) Congwin++ until (loss event OR CongWin > threshold) RTT Host A Host B one segment two segments four segments CongWin RTT timeout (Tahoe TCP) and/or or three duplicate ACKs (Reno TCP) time 2002/5/29 40
41 TCP Congestion Avoidance Congestion avoidance /* slowstart is over */ /* Congwin > threshold */ Until (loss event) { every w segments ACKed: Congwin++ } threshold = Congwin/2 Congwin = 1 1 perform slowstart 1: TCP Reno skips slowstart (fast recovery) after three duplicate ACKs 2002/5/29 41
42 AIMD TCP Fairness TCP congestion avoidance: AIMD: additive increase, multiplicative decrease RTT window1 Fairness TCP connection 1 window N TCP 1/N TCP connection 2 bottleneck router capacity R 2002/5/29 42
43 Why is TCP fair? 2 throughput additive increase 1 throughput throughput R equal bandwidth share Conne ction 2 thro ughput Connection 1 throughput loss: decrease window by factor of 2 congestion avoidance: additive increase loss: decrease window by factor of 2 congestion avoidance: additive increase R 2002/5/29 43
44 TCP Q: WWW HTML R TCP W: congestion window S: MSS (bits) O: (bits) WS/R > RTT + S/R window ACK WS/R < RTT + S/R window ACK 2002/5/29 44
45 TCP latency Modeling K:= O/WS Case 1: latency = 2RTT + O/R Case 2: latency = 2RTT + O/R + (K-1)[S/R + RTT - WS/R] 2002/5/29 45
46 Slow Start Example: O/S = 15 segments K = 4 windows Q = 2 P = min{k-1,q} = 2 initiate TCP connection request object RTT first window = S/R second window = 2S/R third window = 4S/R Server stalls P=2 times. fourth window = 8S/R object delivered time at client time at server complete transmission 2002/5/29 46
47 DNS: Domain Name System IP 32 purple.ms.u-tokyo.ac.jp Domain Name System: Q: IP (resolve) 2002/5/29 47
48 URL $ ssh as301.ecc.u-tokyo.ac.jp 2002/5/29 48
49 RFC1035 DOMAIN NAMES IMPLEMENTATION AND SPECIFICATION as amended by RFC1123 Requirements for Internet Hosts Application and Support, Section /5/29 49
50 TLD: Top Level Domain gtld: generic TLD.com,.org,.net.int,.edu,.mil,.gov cctld: country code TLD.us,.jp, etc..uk (.gb ) New TLDs.biz,.info.aero,.coop,.museum,.name,.pro 2002/5/29 50
51 .jp AC, AD, CO, ED, GO, GR, NE, OR tokyo.jp, chiba.jp etc. JP < >.JP ( ) 2002/5/29 51
52 ICANN etc. ICANN: Internet Corporation for Assigned Names and Numbers Registry.org,.net,.com: VeriSign, Inc. Registrar JP ICANN accredited registrars JPNIC /5/29 52
53 idn: Internationalized Domain Name (Multilingual Domain Name) Multilingual Internet Names Consortium IETF idn WG implementation IE.jp DNS RealNames (2002.5/e) 2002/5/29 53
54 DNS : single point of failure... authoritative : IP 2002/5/29 54
55 DNS: (root) local name server host authoritative name server A M M 2002/5/29 55
56 root name server host surf.eurecom.fr 2 gaia.cs.umass.edu 5 IP 1. local DNS server, dns.eurecom.fr 2. dns.eurecom.fr root name server 1 local name server dns.eurecom.fr 3. root name server authoritative name server dns.umass.edu 6 requesting host surf.eurecom.fr 3 4 authorititive name server dns.umass.edu gaia.cs.umass.edu 2002/5/29 56
57 DNS root name server 2 authoratiative name server local name server dns.eurecom.fr 7 3 authoritative name server 1 8 requesting host surf.eurecom.fr 6 intermediate name server dns.umass.edu 4 5 authoritative name server dns.cs.umass.edu gaia.cs.umass.edu 2002/5/29 57
58 DNS: 2 root name server recursive query: root server iterated query: 2 local name server dns.eurecom.fr 1 8 I don t know this name, but ask this requesting host surf.eurecom.fr server iterated query intermediate name server dns.umass.edu 5 6 authoritative name server dns.cs.umass.edu gaia.cs.umass.edu 2002/5/29 58
59 DNS: (expire) authoritative 2002/5/29 59
60 DNS resource records (RR) Type=A Type=NS RR format: (name, value, type,ttl) name value IP name Type=CNAME name value (cannonical name) value Type=MX authoritative name value serverip 2002/5/29 60
61 DNS DNS : query reply identification: 16 query reply flags: query/reply recursion desired recursion available reply is authoritative 2002/5/29 61
62 RFC TCP RFC793, Transmission Control Protocol, RFC1122, Requirements for Internet Hosts --- Communication Layers, RFC1323, TCP Extensions for High Performance, RFC2018, TCP Selective Acknowledgment Options, RFC2581, TCP Congestion Control, UDP RFC768, User Datagram Protocol, DNS RFC1034, Domain Names --- Concepts and Facilities, RFC1035, Domain Names --- Implementation and Specification, /5/29 62
TCP T ransmission Control Protocol TCP TCP TCP TCP TCP TCP TCP TCP c /(18)
3 -- 4 1 TCP T ransmission Control Protocol 2013 12 TCP TCP TCP TCP TCP TCP TCP TCP c 2013 1/(18) 3 -- 4 -- 1 1--1 TCP 2013 12 TCP Transmission Control Protocol TCP TCP TCP 1981 RFC 793 Request for Comments
More informationuntitled
Chapter 3 Transport Layer A note on the use of these ppt slides: We re making these slides freely available to all (faculty, students, readers). They re in PowerPoint form so you can add, modify, and delete
More informationContents Part1: TCP Part2: TCP Part3: TCP Part4: Part5: TCP Part6:
TCP Yoshifumi Nishida nishida@csl.sony.co.jp Contents Part1: TCP Part2: TCP Part3: TCP Part4: Part5: TCP Part6: TCP TCP TCP Transmission Control Protocol IP TCP application TCP UDP IP DataLink header IP
More informationI TCP 1/2 1
I TCP 1/2 1 Transport layer: a birds-eye view Hosts maintain state for each transport endpoint Routers don t maintain perhost state H R R R R H Transport IP IP IP IP IP Copyright(C)2011 Youki Kadobayashi.
More information橡c03tcp詳説(3/24修正版).PDF
1 1 2 TCP 1 3 TCP 9 4 TCP 15 5 21 6 TCP 25 7 27 TCP 1 TCP Windows98 Linux Solaris TCP(Transmission Control Protocol) IP TCP UDP UDP TCP UDP TCP 1 TCP RFC793 RFC2581 TCP 4-1 - DataLink header IP header
More informationuntitled
ICMP 0466-XX-1395 t04000aa@sfc.keio.ac.jp 133.113.215.10 (ipv4) 2001:200:0:8803::53 (ipv6) (FQDN: Fully Qualified Domain Name) ( www.keio.ac.jp 131.113.215.10 /MAC ID 00:11:24:79:8e:82 Port Port = = Port
More information第1回 ネットワークとは
1 第 8 回 UDP TCP 計算機ネットワーク 2 L4 トランスポート層 PDU: Protocol Data Unit L4 セグメント L4 ヘッダ データ セグメントデータ最大長 =MSS maximum segment size L3 パケット IP ヘッダ TCP ヘッダ IP データ L2 フレーム イーサヘッダ IP ヘッダ TCP ヘッダ イーサネットデータ イーサトレイラ フレームデータ
More informationTCP/IP Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.3 Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.4 2
Japan Registry Service Co., Ltd. JPRS matuura@jprs.co.jp Internet Week 2002 [2002/12/17] Japan Registry Service Co., Ltd. No.1 TCP IP DNS Windows Internet Week 2002 [2002/12/17] Japan Registry Service
More informationNetEng-04.ppt
4(1) 1 5 end-to-end host-to-host point-to-point 2 multiplexingdemultiplexing UDP TCP (flow control) (congestion control) TCP 3 ()(IP) : best-effort 4 TCP (Transmission Control Protocol) (flow control)
More information128 64 32 16 8bit 7bit 6bit 5bit 4bit 3bit 2bit 1bit 8 4 2 1 3.6m 4.5m 5.5m 6.4m Tokyo:3.6m 3.6m 4.5m 3.6m 5.5m 6.4m JCSAT-3 AI 3 Hub WIDE Internet 2Mbps VSAT point-to-point/multicst
More informationRFC2131「Dynamic Host Configuration Protocol」における実装問題点
Barr Hibbs Implementation Issues with RFC 2131, "Dynamic Host Configuration Protocol" Internet Draft 2003 2 24 RFC2131 Dynamic Host Configuration Protocol 11300J083 Implementation Issues with RFC 2131,
More informationuntitled
()IP OSI ( ) (TCP/IP)TCP UDP ( ) IP + IP TCP / Web TCP/UDP IP / LAN IM xdsl/ () (FAX) 6bit(6556) FAX FAX ( ) UDP/TCP UDP(User Datagram Protocol) CL (Connectionless) TCP(Transmission Control Protocol) CO
More information2 1: OSI OSI,,,,,,,,, 4 TCP/IP TCP/IP, TCP, IP 2,, IP, IP. IP, ICMP, TCP, UDP, TELNET, FTP, HTTP TCP IP
1.,.. 2 OSI,,,,,,,,, TCP/IP,, IP, ICMP, ARP, TCP, UDP, FTP, TELNET, ssh,,,,,,,, IP,,, 3 OSI OSI(Open Systems Interconnection: ). 1 OSI 7. ( 1) 4 ( 4),,,,.,.,..,,... 1 2 1: OSI OSI,,,,,,,,, 4 TCP/IP TCP/IP,
More information2004 SYN/ACK SYN Flood G01P014-6
2004 SYN/ACK SYN Flood 2005 2 2 1G01P014-6 1 5 1.1...................................... 5 1.2...................................... 5 1.3..................................... 6 2 7 2.1..................................
More informationFlow Control Information Network 1 /
(2) Suguru Yamaguchi Nara Institute of Science and Technology Department of Information Science Flow Control Information Network 1 / 2012 2 Flow Control DLL : Automatic Repeat Request (ARQ) Stop-and-wait
More informationNetEng-05.ppt
5 (2) 5 1 ACK ACK (a) stop-and-wait (b) 2 Go-Back-N (GBN) Selective Repeat (SR) 5 2 Stop-and-wait vs. ACK 3. t = 0. t = L/R RTT. ACK ACK. t = RTT + L/R 2. ACK L: packet size (bit) R: rate (bit/sec) 5 Stop-and-wait
More information2011 I/ 2 1
2011 I/ 2 1 ISO 7 layer reference model TCP/IP ISO 7 layer reference model 5 7 2011 I/ 2 2 2011 I/ 2 3 OSI 7 Layer Reference Model 2011 I/ 2 4 Harry Nyquist (1924) Maximum data rate = 2H log 2 V (bits/s)
More informationuntitled
osamu@sfc.keio.ac.jp CNS 18 Web http://www.sfc.wide.ad.jp/~three/itbasic05/ 6/6 7/11 1 ls -la t04xxx student -rwxr-xrx three student - rwx r-x r-x Windows GUI UNIX Windows chmod CNS (755) (ug+x) % chmod
More informationtotal-all-nt.dvi
XI W I D E P R O J E C T 1 WIDE Reliable Multicast 1.1 TV 1 1 TCP WIDE JGN/JB SOI (DV) Reliable Multicast (RM) US Reliable Multicast IETF RMT-WG PGM Digital Fountain FEC Tornado Code Ruby Code 1.2 WIDE
More informationwide93.dvi
5 161 1 1.1 DDT WG DDT WG 1. \DDT" 2. DDT WG DDT WG 1.2 x ( IP) y ( X.25) x y \x overy" x y 1.1 IP X.25 IP IP IPX Appletalk OSI IP \encapsulation" \encapsulation header" \decapsulation" 163 164 1993 WIDE
More informationIP IP DHCP..
NICE 2008 4 14 1 NICE 2 1.1.................... 2 2 3 2.1........................................ 3 2.2....................................... 5 2.3.................................... 6 2.4...................................
More informationIP.dvi
... 3... 3... 3... 4... 6 VLAN... 6... 6 DHCP... 7... 7... 9... 9... 10... 12 R... 15... 15... 15 ARP... 18... 18 ARP... 18 DNS... 20... 20 DHCP/BOOTP... 21... 21 DHCP... 22 UDP... 23... 23... 23... 26...
More information卒研 .PDF
1. ------------------------------------------------------------------------------------------2 2. ---------------------------------------------------------------------------3 2.1 2.2 2.3 OSI 2.4 TCP/IP
More informationMacintosh HD:Users:ks91:Documents:lect:nm2002s:nm2002s03.dvi
3 ks91@sfc.wide.ad.jp April 22, 2002 1 2 1. over IP ( : Voice over IP; IP Internet Protocol ) over IP??? : 2002/4/20 23:59 JST : http://www.soi.wide.ad.jp/report/ 3 32 11 (4/22 ) 4 () 3 2 1? 4 ...... A.C.
More information$ cal ) ( cal $ cal cal cal 1. () ( clear) 2. ( cal) 3. ( man) \() ( ) --() +()
5 5 5.1 kernel UNIX OS (...) shell ( ) 5: UNIX: UNIXpp.133-134 UNIX UNIX Mac OS X $ % $ bash(bourne again shell)% tcsh() 5.2 5.2.1 5.1 clear $ clear 5.2 cal CLEAR $ cal CALender 5.2.2 1 cat /etc/shells
More informationMicrosoft PowerPoint ppt
トランスポート層が提供する機能 CP その 2 山口英奈良先端科学技術大学院大学 モデル : プロセス間の通信 通信相手のプロセスの指定 プロセス間の通信路の識別 プロセス (process) は ホストの中の処理単位で 同時に複数存在することが仮定されている 上位層へのインタフェースの提供 Connection oriented (virtual circuit) Connectionless (datagram)
More informationMicrosoft PowerPoint ppt [互換モード]
第 5 回 IP 計算機ネットワーク IP Internet Protocol Layer 3 ネットワーク層 機能 アドレッシング (IP アドレス ) IP Reachable 到達可能 = インターネット L2ではローカルのみ通信可 ルーティング フラグメント IP パケット IP パケット IP ヘッダ ペイロード イーサネットヘッダ ペイロード FCS 4 14 1500 イーサネットペイロード
More informationTTC技術書
JJ-20.24 Private Integrated Services Network(PISN)- Signalling protocols for IP-based connections as Inter-PINX Connections 2003 4 23 THE TELECOMMUNICATION TECHNOLOGY COMMITTEE ...5...6...6...6...7...7...7...7...7...7...7...7...7...7
More informationIP 2.2 (IP ) IP 2.3 DNS IP IP DNS DNS 3 (PC) PC PC PC Linux(ubuntu) PC TA 2
IP 2010 10 1 1 IP (IP ) 2 IP IP 2.1 IP (IP ) 1 IP 2.2 (IP ) IP 2.3 DNS IP IP DNS DNS 3 (PC) PC PC PC Linux(ubuntu) PC TA 2 4 1,2 4.1 (Protocol) IP:Internet Protocol) 4.2 internet The Internet (internet)
More information2.5 トランスポート層 147
2.5 トランスポート層 147 TCP と UDP TCP (Transmission Control Protocol) コネクション型 ギャランティード マルチキャスト ブロードキャスト不可 UDP (User Datagram Protocol) コネクションレス ベストエフォート マルチキャスト ブロードキャスト可 cf. IP (Internet Protocol) コネクションレス ベストエフォート
More informationict2-.key
IP TCP TCP/IP 1) TCP 2) TCPIP 3) IPLAN 4) IP パケット TCP パケット Ethernet パケット 発信元 送信先 ヘッダ 列番号 ポート番号 TCP パケットのデータ IP パケットのデータ 本当に送りたいデータ データ IP ヘッダデータ部ヘッダデータ部ヘッダデータ部 Ethernet パケット Ethernet パケット Ethernet パケット
More informationrzakg.ps
IBM Systems - iseries DHCP (Dynamic Host Configuration Protocol) 5 4 IBM Systems - iseries DHCP (Dynamic Host Configuration Protocol) 5 4 65 IBM i5/os ( 5722-SS1) 5 4 0 RISC CISC URL http://www.ibm.com/jp/manuals/main/mail.html
More informationtcp/ip.key
IP TCP IP ヘッダデータ部ヘッダデータ部ヘッダデータ部 Ethernet パケット Ethernet パケット Ethernet パケット IP(1) 0 8 16 24 31 () Version IHL () Time To Live () Identification () Type of Service ) Flags Protocol () Source Address IP) Destination
More informationtutorial.dvi
m-sato@yoko.nel.co.jp 1 (rough) OSI, ITU-T? ATM-Forum? DAVIC? 2 Internet Architecture Boad (IAB) IETF Engineering Steering Group (IESG) Internet PCA egistration Authority (IPA) Internet Assigned Number
More informationuntitled
IPv6 IPv4 I / 9 1 CIDR,, NAT IP IPv6 I / 9 2 I / 9 3 1 CIDR Classless Inter-Domain Routing RFC1519 IPv4 CIDR IPng (=IPv6) I / 9 4 Growth in BGP Route Table 90000 80000 Source: http//www.telstra.net/ ops/bgptable.html
More informationppt
/ 5 1 (error control) (flow control) / 5 2 Layer 1 gateway: repeater ( ) Layer 2 gateway: bridge ( ) Layer 3 gateway: router (datalink frame) / 5 3 Data link control (error detection / correction) (flow
More informationi TCP/IP NIC Intel 3com NIC TCP/IP *1 20 IPv4 IPv6 IPv6 TCP/IP TCP/IP *1 3
i TCP/IP NIC Intel 3com NIC TCP/IP 78 90 500 *1 20 IPv4 IPv6 IPv6 TCP/IP TCP/IP 79 80 *1 3 ii IPv4 IPv4 *2 *3 IPv6 5 IPv6 UDP UDP IP UDP IP TCP/IP IPv6 IPv4 TCP/IP IPv6 TCP/IP TCP/IP TCP/IP TCP/IP IPv6
More informationuntitled
2 1 Web 3 4 2 5 6 3 7 Internet = Inter Network 8 4 B B A B C A B C D D 9 A G D G F A B C D F D C D E F E F G H 10 5 11 Internet = Inter Network PC 12 6 1986 NSFNET 1995 1991 World Wide Web 1995 Windows95
More informationI j
I j06062 19.5.22 19.5.25 19.5.25 1 1 1 ping 3 2 2 ping 4 3 3 traceroute 5 4 4 netstat 5 4.1 netstat -i............................................. 5 4.2 netstat -r.............................................
More informationAgenda IPv4 over IPv6 MAP MAP IPv4 over IPv6 MAP packet MAP Protocol MAP domain MAP domain ASAMAP ASAMAP 2
MAP Tutorial @ 1 Agenda IPv4 over IPv6 MAP MAP IPv4 over IPv6 MAP packet MAP Protocol MAP domain MAP domain ASAMAP ASAMAP 2 IPv4 over IPv6 IPv6 network IPv4 service Internet Service ProviderISP IPv4 service
More informationIP L09( Tue) : Time-stamp: Tue 14:52 JST hig TCP/IP. IP,,,. ( ) L09 IP (2017) 1 / 28
L09(2017-11-21 Tue) : Time-stamp: 2017-11-21 Tue 14:52 JST hig TCP/IP. IP,,,. http://hig3.net L09 (2017) 1 / 28 9, IP, - L09 (2017) 2 / 28 C (ex. ) 1 TCP/IP 2 3 ( ) ( L09 (2017) 3 / 28 50+5, ( )50+5. (
More information集中講義 インターネットテクノロジー 第5回
5 ichii@ms.u-tokyo.ac.jp 2002/5/31 2 IPv6 2002/5/31 3 IPv6 32 IP 2008 streamline QoS anycast anycast: IPv6 40 128 2002/5/31 4 IP ICANN Ad Hoc Group on Numbering and Addressing McFadden/Holmes Report of
More informationmain2.dvi
15 WWW 501 1 W4C WG 1 WWW (HTTP[53, 22]) WIDE WWW 1997 3 WIDE WWW WIDE CacheBone WG 2 WWW WG WWW W4C WG 2 WIDE CacheBone 3 4 5 6 WWW 1 W4C WG:WIDE World-Wide Web Cache Working Group 503 2 WIDE CacheBone
More information1 Linux UNIX-PC LAN. UNIX. LAN. UNIX. 1.1 UNIX LAN. 1.2 Linux PC Linux. 1.3 studenta odd kumabari studentb even kumabari studentc odd kumabari student
LAN 0000000000 6/6, 6/13, 6/20 1 Linux UNIX-PC LAN. UNIX. LAN. UNIX. 1.1 UNIX LAN. 1.2 Linux PC Linux. 1.3 studenta odd kumabari studentb even kumabari studentc odd kumabari studentd even kumabari 1: LAN
More information3. LISP B EID RLOC ETR B 4. ETR B ITR A 1: LISP 5. ITR A B EID RLOC 6. A SYN 7. ITR A ITR A B EID RLOC SYN ITR A RLOC ETR B RLOC 8. ETR B SYN ETR B B
L-020 SYN Cookies Locator/ID Separation Protocol Locator/ID Separation Protocol implementation considering SYN Cookies Watanabe Takaya Takashi Imaizumi 1. AS Autonomous System ISP IETF Locator/ID Separation
More informationWIDE 1
WIDE 1 2 Web Web Web Web Web Web Web Web Web Web? Web Web Things to cover Web Web Web Web Caching Proxy 3 Things NOT covered / How to execute Perl Scripts as CGI binaries on Windows NT How to avoid access
More information帯域を測ってみよう (適応型QoS/QoS連携/帯域検出機能)
RTX1100 client server network service ( ) RTX3000 ( ) RTX1500 2 Sound Network Division, YAMAHA 3 Sound Network Division, YAMAHA 172.16.1.100/24 172.16.2.100/24 LAN2 LAN3 RTX1500 RTX1100 client 172.16.1.1/24
More informationトランスポートレイヤの仕事 計算機間での良好なデータのやり取りを実現する 誤りがないように 再送 パリティー情報による自動再生 (FEC; Forward Error Correction) データを取りこぼさないように それ以外に欲しくなる機能 並列データ転送 ネットワークに やさしく 道が混まな
トランスポートレイヤ技術 - TCP; Transmission Control Protocol - 1 トランスポートレイヤの仕事 計算機間での良好なデータのやり取りを実現する 誤りがないように 再送 パリティー情報による自動再生 (FEC; Forward Error Correction) データを取りこぼさないように それ以外に欲しくなる機能 並列データ転送 ネットワークに やさしく 道が混まないように
More informationMicrosoft PowerPoint - network8forPDF
第 8 章 トランスポート層とフロー制御 インターネット上の TCP による高信頼 通信サービス 発信ノード あて先ノード 発信ノード あて先ノード アプリデータ アプリデータ アプリケーション層 アプリデータ アプリデータ TCP セグメント トランスポート層 高信頼 TCP コネクション TCP セグメント TCP コネクション型通信送信 TCP セグメント TCP コネクション型通信受信 TCP
More information<Documents Title Here>
Oracle Application Server 10g Release 2 (10.1.2) for Microsoft Windows Business Intelligence Standalone Oracle Application Server 10g Release 2 (10.1.2) for Microsoft Windows Business Intelligence Standalone
More informationLogitec NAS シリーズ ソフトウェアマニュアル
LAS-SFB V05 LAS-RAN LAS-MRN LHD-NAS ... 4... 4... 7... 8 1... 10... 11 1... 12 Windows... 12 Macintosh... 15 2IP... 16 IP Windows... 16 IP Macintosh... 19... 23... 29... 30 Windows Me2000 SMB... 30 Windows
More informationict4.key
IP IP IP IP IP IPv4 32 0-1 IPv6 128 0-1 Web IP 192.47.204.101 IP addressing IP IP IP DNS daito.ac.jp st.daito.ac.jp ic.daito.ac.jp jm.daito.ac.jp DNS =host name....tld www.daito.ac.jp, www.google.com,
More informationLogitec NAS シリーズ ソフトウェアマニュアル
LAS-SFB V03A LAS-RAN LAS-MRN LAS-1UMR LAS-1U LHD-NAS ... 3... 3... 5... 6 1... 8... 9 1... 10 Windows... 10 Macintosh... 13 2IP... 14 IP Windows... 14 IP Macintosh... 17... 19... 24... 25 Windows Me2000
More information第1回 ネットワークとは
第 6 回 IP 計算機ネットワーク ルーティング IP パケットの宛先に応じて次の転送先インターフェースを決定 D:192.168.30.5 パケット 192.168.10.0/24 fe0 192.168.20.0/24 fe1 fe3 fe2 192.168.30.0/24 ルーティングテーブル 192.168.40.0/24 192.168.10.0 direct fe0 192.168.20.0
More informationのコピー
DNSSEC Masakazu Asama @ NISOC 1 What? DNS SECurity extensions. DNS Resource Record(RR), RR. (Validator) RR. RR. 2 Why? Thread Analysis of the Domain Name System(RFC3833): Packet Interception ID Guessing
More informationIP RTP 2 QoS i
17 IP A study on IP path quality forecasting from the IP path delay measurements 1060339 2006 3 10 IP RTP 2 QoS i Abstract A study on IP path quality forecasting from the IP path delay measurements Kotaro
More informationスライド タイトルなし
画像情報特論 (3) -TCP/IP (2) TCP (Transport Control Protocol) UDP (User Datagram Protocol) 2004.04.30 情報ネットワーク専攻甲藤二郎 E-Mail: katto@waseda.jp TCP Transport Control Protocol インターネットの基礎 プロトコルスタック 端末 T アプリケーション
More information設定例集
REMOTE ROUTER 1999. 2. 2 YAMAHA NetWare Novell,Inc. INS 64 YAMAHA! M E M O 1 1 1.1 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 1 1.2 : : : : : : : : : : : : : : : : : : : : :
More informationA Study on Traffic Characteristics in Multi-hop Wireless Networks 2010 3 Yoichi Yamasaki ( ) 21 Local Area Network (LAN) LAN LAN LAN (AP, Access Point) LAN AP LAN AP AP AP (MWN, Multi-hop Wireless Network)
More informationMac OS X Server QuickTime Streaming Server 5.0 の管理(バージョン 10.3 以降用)
Mac OS X Server QuickTime Streaming Server 5.0 Mac OS X Server 10.3 apple Apple Computer, Inc. 2003 Apple Computer, Inc. All rights reserved. QuickTime Streaming Server Apple Apple Computer, Inc. Apple
More informationDNS DNS 2002/12/19 Internet Week 2002/DNS DAY 2
DNS 2002 12 19 2003 1 16 Internet Week 2002/DNS DAY ( ) (JPRS) DNS DNS 2002/12/19 Internet Week 2002/DNS DAY 2 DNS SOA SOA TTL $TTL NS MX CNAME 2002/12/19 Internet Week 2002/DNS DAY
More information情報通信ネットワーク特論 TCP/IP (3)
情報通信ネットワーク特論 TCP/IP (3) 2004/04/21(WED) 渡邊晃 担当 : 鈴木秀和 参考文献 マスタリング TCP/IP 入門編 [ 第 3 版 ] 竹下隆史 村山公保荒井透 苅田幸雄共著 オーム社 (2002) 2 流れ 第 6 章 TCP と UDP TCP と UDP ポート番号 TCP の目的と特徴 シーケンス番号と確認応答 再送制御と重複制御 ウィンドウ制御 フロー制御
More informationNetLec17TCPIP1.ppt
大阪市立大学創造都市研究科ネットワークシステム概論 3 帝塚山学院大学情報メディア学科教授大阪市立大学名誉教授 堺市情報セキュリティアドバイザ 中野秀男 [ 検索 ] ネットワークシステム概論 1 今日の話 TCP/IP までの世界 プロセス間通信 プロトコル TCP/IP のポイント OSI IP アドレスと DNS IP アドレス ポート番号 議論 ネットワークシステム概論 2 TCP/IP までの世界
More informationMFC-8660DN Presto! PageManager TEL/ FAX/
MFC-8660DN http://solutions.brother.co.jp Presto! PageManager TEL/03-5472-7008 FAX/03-5472-7009 7 CD-ROM HTML PDF PDF 1 P.XXX P.XXX P.XX P.XXX XXX XXX XX PDFXXX 2 3 4 5 P.73 P.76 6 Windows P.39 Macintosh
More informationGA-1190J
GA-1190J 1 1. 2. 3. 4. 2 5. 3 PDF 4 PDF PDF PDF PDF PDF PDF PDF PDF 5 6 ...1...2...4 1...12 2...16...18 3...22 PCL/PS...23 4...26 5...30 ETHERNET...31 TCP/IP...33 IPX/SPX...38 AppleTalk...40 HTTP...42
More informationIPv4aaSを実現する技術の紹介
: ( ) : (IIJ) : 2003 4 ( ) IPv6 IIJ SEIL DS-Lite JANOG Softwire wg / Interop Tokyo 2013 IIJ SEIL MAP-E 2 IPv4aaS 3 4 IPv4aaS 5 IPv4 1990 IPv4 IPv4 32 IPv4 2 = 42 = IP IPv6 6 IPv6 1998 IPv6 (RFC2460) ICMP6,
More information14 G 1 ...3...4...4...4...4...4...4...5...5...6...7...7...8...9...9... 11... 11...12...13...14...16...16 5.2...17...19...24...24...25 2 PC LAN 2002 Intrusion Detection System IDS snort 3 IDS IDS snort
More informationSRT/RTX/RT設定例集
Network Equipment Rev.6.03, Rev.7.00, Rev.7.01 Rev.8.01, Rev.8.02, Rev.8.03 Rev.9.00, Rev.10.00, Rev.10.01 2 3 4 5 6 1 2 3 1 2 3 7 RTX1000 RTX1000 8 help > help show command > show command console character
More informationMicrosoft Word - Open_Alliance_TC8_A02.docx
Intrepid Control Systems, Inc. ガイド Vehicle Spy --- OPEN Alliance 及び認証試験 (TC8) の紹介 --- ( 株 ) 日本イントリピッド コントロール システムズ ( 株 ) 日本イントリピッド コントロール システムズ 1 目次 1. 概要... 3 2. OPEN Alliance とは... 3 2.1. OPEN Alliance
More informationAirMac ネットワーク構成の手引き
AirMac 1 1 5 6 AirMac 6 7 AirMac Extreme AirMac Express 7 AirMac 8 AirMac Express 8 AirMac 9 AirMac 10 AirTunes 10 AirMac Extreme AirMac Express 10 2 13 15 Mac OS X IP 16 Mac OS X AirMac 3 17 AirMac 17
More informationTeradici Corporation #101-4621 Canada Way, Burnaby, BC V5G 4X8 Canada p +1 604 451 5800 f +1 604 451 5818 www.teradici.com Teradici Corporation Teradi
PCoIP TER0806003 TER0806003 Issue 2 0 Teradici Corporation #101-4621 Canada Way, Burnaby, BC V5G 4X8 Canada p +1 604 451 5800 f +1 604 451 5818 www.teradici.com Teradici Corporation Teradici Teradici Teradici
More information2 PC [1], [2], [3] 2.1 OS 2.1 ifconfig 2.1 lo ifconfig -a 2.1 enp1s0, enx0090cce7c734, lo 3 enp1s0 enx0090cce7c734 PC 2.1 (eth0, eth1) PC 14
2 PC [1], [2], [3] 2.1 OS 2.1 ifconfig 2.1 lo ifconfig -a 2.1 enp1s0, enx0090cce7c734, lo 3 enp1s0 enx0090cce7c734 PC 2.1 (eth0, eth1) PC 14 $ ifconfig lo Link encap: inet :127.0.0.1 :255.0.0.0 inet6 :
More information設定例集_Rev.8.03, Rev.9.00, Rev.10.01対応
Network Equipment 設定例集 Rev.8.03, Rev.9.00, Rev.10.01 対応 2 3 4 5 6 7 8 help > help show command > show command console character administrator pp disable disconnect 9 pp enable save Password: login timer
More informationTCP/IP IEEE Bluetooth LAN TCP TCP BEC FEC M T M R M T 2. 2 [5] AODV [4]DSR [3] 1 MS 100m 5 /100m 2 MD 2 c 2009 Information Processing Society of
IEEE802.11 [1]Bluetooth [2] 1 1 (1) [6] Ack (Ack) BEC FEC (BEC) BEC FEC 100 20 BEC FEC 6.19% 14.1% High Throughput and Highly Reliable Transmission in MANET Masaaki Kosugi 1 and Hiroaki Higaki 1 1. LAN
More informationVMware NFSまたはVMware VMFSでのVNXeシステムの使用
EMC VNXe VMware NFS VMware VMFS VNXe VNXe Operating Environment 2.4 P/N 300-010-553 04 Copyright 2013 EMC Corporation. All rights reserved. 2013 5 EMC Corporation EMC Corporation EMC EMC 2 EMC EMC EMC
More informationMicrosoft Windows, Windows CE, Microsoft Corporation Citrix ICA Citrix Presentation Server Citrix Systems, Inc IBM IBM Corporation
CE(Windows CE) Version 2.0.1 Microsoft Windows, Windows CE, Microsoft Corporation Citrix ICA Citrix Presentation Server Citrix Systems, Inc IBM IBM Corporation 2.0.1 2009 1 2009 2 APTi (CE ) APTi (CE )
More information08+11Extra
A - - #8 bit, Byte, Yutaka Yasuda bit : データの最小単位 1bit = 最小状態の単位 = 二進一桁 コンピュータ内部は電気配線 配線に電気が通っている いな い だけで処理 状態は2種 二値 二進 動作にうまく対応 二進一桁を配線一本で実現 0と1 二進数 で動作 の実体 1bit = 二進一桁 = 配線一本 Byte : Byte bit 8 1 Byte
More informationTCP/IP Protocols and Services
00ィイ09020102ィェィィ02 070905ィョ00ィィ 09 Internet 02ィ ィエ06 0607ィィ09ィ ィェィィ02 ィェィ TCP/IP 070806ィー06ィコ0605ィィ TCP 070806ィー06ィコ0605 IP 070806ィー06ィコ0605 Ethernet 070806ィー06ィコ0605 TCP/IP 05ィーィ ィェ01ィ 08ィーィィ (RFC) 00ィ
More informationuntitled
25: Part ( ) Chief Technology Officer mshindo@fivefront.com SNMP MRTG HP/OV RMON INTERNET WEEK 2006/12/08 Copyright 2006 Fivefront Corporation, All Rights Reserved. 2 1 SNMP IfInUcastPkts, IfOutUcastPkts
More informationAirMac ネットワーク for Windows
AirMac for Windows Windows XP Windows 2000 1 1 5 6 AirMac 6 7 AirMac Extreme AirMac Express 7 AirMac for Windows 7 AirMac Express 8 AirMac 9 AirTunes 9 AirMac Extreme 10 2 11 AirMac 11 AirMac 12 AirMac
More informationDNS (BIND, djbdns) JPNIC・JPCERT/CC Security Seminar 2005
DNS 2005 10 6 JPNIC JPCERT/CC Security Seminar 2005 DNS Pharming BIND djbdns 2 DNS DNS (Domain Name System)? IP www.example.jp IP 172.16.37.65 http://www.example.jp/ - http://172.16.37.65/
More informationMUA (Mail User Agent) MTA (Mail Transfer Agent) DNS (Domain Name System) DNS MUA MTA MTA MUA MB mailbox MB
MUA (Mail User Agent) MTA (Mail Transfer Agent) DNS (Domain Name System) DNS MUA MTA MTA MUA MB mailbox MB »» SMTP MAIL FROM: 250 sender ok RCPT TO: 250 recipient
More informationR70_Software_Manual_JP1.3
R70 Ethernet CAN (1.3 JP) R70 Ethernet CAN Version 1.3 JP, 08/2008, DOC01816 Copyright 2008 by d&b audiotechnik GmbH; all rights reserved. d&b audiotechnik GmbH Eugen-Adolff-Strasse 134, D-71522 Backnang,
More information... 4 HTML IP TC
MFC-7820N ... 4 HTML... 5... 7... 7... 7... 8... 8... 8... 9 1... 11... 12... 13... 13... 14... 15... 15... 16... 18... 18 IP... 19 2... 21... 22... 22... 22 TCP/IP... 23 IP... 24 IP... 25... 26... 27
More informationTCP-STAR a) Implementation and Evaluation of TCP-STAR: TCP Congestion Control Method for Satellite Internet Hiroyasu OBATA a), Kazuhiro TAIRA, and Ken
TCP-STAR a) Implementation and Evaluation of TCP-STAR: TCP Congestion Control Method for Satellite Internet Hiroyasu OBATA a), Kazuhiro TAIRA, and Kenji ISHIDA TCP NewReno TCP TCP-STAR TCP-STAR TCP TCP-STAR
More informationjohokiso-internet
1 2 (Internet) : ( internet) : IP (The Internet) = Web? Internet, 1960 ARPAnet (Advanced Research Project Agency) : 1988 1989 + 1992 IIJ () 3 4 = (etc.) + = 1 () A B: A3 defaut: A2 A1 A3 B1 defaut: A2
More informationUsersGuide_INR-HG5497c_.doc
UPS / Web/SNMP VCCI A Web/SNMP... 1.. WEB...1.. SNMP...1.. NETSHUT...1.. 100BASE-TX...1... 2 Web... 4.....5.....7......7......8......9.. UPS...10... UPS...10...13......14......14...15......17......17..
More information$ ifconfig lo Link encap: inet : : inet6 : ::1/128 : UP LOOPBACK RUNNING MTU:65536 :1 RX :8 :0 :0 :0 :0 TX :8 :0 :0 :0 :0 (Collision
2 (1) (2)PC [1], [2], [3] 2.1 OS ifconfig OS 2.1 ifconfig ( ) ifconfig -a 2.1 PC PC enp1s0, enx0090cce7c734, lo 3 PC 2.1 13 $ ifconfig lo Link encap: inet :127.0.0.1 :255.0.0.0 inet6 : ::1/128 : UP LOOPBACK
More informationHP Server tc2120 Microsoft Windows 2000 Server SP3 HP P
HP Server tc2120 Microsoft Windows 2000 ServerSP3 HP P312977-191 200210 Hewlett-Packard Company Hewlett- Packard Company Hewlett-Packard Company Intel Corporation MicrosoftMS-DOSWindows Windows NT Microsoft
More information第1回 ネットワークとは
第 6 回 IP 計算機ネットワーク 2 前回まで Ethernet LAN 内通信 MAC アドレス (32:43:55 : BA:F5:DE) IP アドレス ベンダ (OUI) NIC IP アドレス ( 187.45.147.154 ) network host 組織端末 IP アドレス : 187.45.147.154 どこの組織? どのネットワーク? ネットワークアドレス ネットワーク部
More informationLHD-LAN_E_G_PDF.}.j...A...p65
LHD-LAN -2- LHD-LAN LHD-LAN Mac OS 9 Mac OS 9 Mac OS 9 Mac OS 9-3- 1 Windows LHD-LAN CD- ROM 1. 1. 2. 2. Mac OS X LHD-LAN CD- ROM 1. 2. Mac OS X 3. 1.CD-ROM 2.Mac OS X 3. -4- 2 1. 2. 3 LHD-LAN 4 OK LHD-LAN
More informationSi-R30取扱説明書
IP 317 318 IP 319 322 327 332 335 337 339 339 340 342 DNS ProxyDNS 344 DNS 344 DNS 348 DNS 349 DNS 350 DHCP 352 DHCP 353 DHCP 355 NAT 35 NAT 359 30 34 ID 38 371 374 CBCP 375 CBCP 377 379 380 TA 382 URL
More informationPacket Tracer: 拡張 ACL の設定 : シナリオ 1 トポロジ アドレステーブル R1 デバイスインターフェイス IP アドレスサブネットマスクデフォルトゲートウェイ G0/ N/A G0/
トポロジ アドレステーブル R1 デバイスインターフェイス IP アドレスサブネットマスクデフォルトゲートウェイ G0/0 172.22.34.65 255.255.255.224 N/A G0/1 172.22.34.97 255.255.255.240 N/A G0/2 172.22.34.1 255.255.255.192 N/A Server NIC 172.22.34.62 255.255.255.192
More informationスライド タイトルなし
トランスポートレイヤ 技 術 - TCP; Transmission Control Protocol - 1 トランスポートレイヤの 仕 事 計 算 機 のインターフェース(Socket) 間 での 良 好 な データのやり 取 りを 実 現 する 誤 りがないように 再 送 パリティー 情 報 による 自 動 再 生 (FEC; Forward Error Correction) データを 取
More information2/ PPPoE AC(Access Concentrator) PPPoE PPPoE Ping FTP PP
PPPoE HATS LAN 2/31... 4... 4... 5... 6... 6... 7... 8... 8... 9... 10 PPPoE... 10 AC(Access Concentrator)... 10...11 PPPoE... 11 PPPoE... 13 Ping... 13 FTP... 14 PPPoE... 14... 15... 15 3/31... 17 PPPoE...
More informationuntitled
... 2... 2... 2... 3 VLAN... 3... 3... 4... 4 ADD ADDRESS... 5 DELETE... 7 PING.... 8 SET... 10 SHOW... 11 CentreCOM GS900SS 1.6.19 1 Internet Protocol 2 Telnet FTP 1. 2. VLAN VLAN default ADD ADDRESS=192.168.10.5
More informationDocuWide 2051/2051MF 補足説明書
ëêèõ . 2 3 4 5 6 7 8 9 0 2 3 4 [PLOTTER CONFIGURATION] [DocuWide 2050/205 Version 2.2.0] [SERIAL] BAUD_RATE =9600 DATA_BIT =7 STOP_BIT = PARITY =EVEN HANDSHAKE =XON/XOFF EOP_TIMEOUT_VALUE =0 OUTPUT RESPONSE
More information橡sirahasi.PDF
Internet Week 2000 T5 IPsec VPN 2000/12/18 1 Virtual Private Network 2 IPsec 3 IPsec VPN 4 IPsec VPN 2 1 Virtual Private Network 3 Ethernet, WAN PPTP(PPP) IPSec SSL/TLS SOCKS V5 SSH, SSL-Telnet, PET PGP,
More informationヤマハ ルーター ファイアウォール機能~説明資料~
1 RT140i #1(PPP) RT105i RTA52i R (PP#) (LAN#) [NAT] R LAN LAN 2 #2() RT300i RTW65b RT140e RT105e (LAN2) R (LAN1) RTA55i R LAN LAN 3 #3(PPPoE) R (LAN#) (PP#) (PP#) LAN ISDN/ LAN 4 RT300i RT105 #4(VPN) R
More informationinstall
SCore SCore 5.0 2001.03.19 devel@pccluster.org SCore Backbone LAN Ethernet EEPRO100 Myrinet-2000 Fibre 02/03/20 2 1 NIC (Network Interface Card) NIC 100Mbps Ethernet EEPRO100 Tulip 3C905B Network Trunking
More information