explain icmp tcp ip udp protocol and their working

... hydrolysis of UDP- Glc to UDP and free glucose (Scheme 1) [6,11]. The molecular biology and domain structure of these toxins has been studied previously [12,13]. TcdA and TcdB share 43% homology and 63% ... Mg 2+ and UDP- Glc. MATERIALS AND METHODS Unless otherwise stated, all reagents were used without further purification. UDP- Glc, KCl, Hepes and dithiothre- itol were purchased from Sigma. UDP- [U- 14 C]glucose (320 ... MUG and UDP- Glc was observed under similar experimental conditions. Solutions of 50 n M MUG and 0.4 l M TcdA in 50 m M Hepes, pH 7.6 and 150 m M KCl containing varying concentrations of UDP- Glc...

Ngày tải lên: 08/03/2014, 22:20

... application layer of the TCP/ IP model handles high-level protocols, issues of representation, encoding, and dialog control. ã The Application layer of the TCP/ IP model has protocols to support ... host and the receiving host. ã End-to-end control is the primary duty of the transport layer when using TCP. 17 Version 3.0 IP Classes of Addresses 23 Version 3.0 IPv4 and IPv6 ã IPv6 uses ... address and a destination IP address. These addresses must be correct and match the destination MAC and IP addresses of the host device ã For communications between two LAN segments TCP/ IP has...

Ngày tải lên: 27/06/2014, 19:20

Ngày tải lên: 05/07/2014, 00:20

Ngày tải lên: 12/10/2014, 21:37

Ngày tải lên: 08/04/2015, 09:36

... host pClass B có đến 65.534 IP address. 1 Chương5 : PROTOCOL STACK TCP/ IP ü Tổngquan ü IP ü IP routing ü TCP v UDP ü Applications : DNS, SMTP, FTP, HTTP, SNMP, … 14 IP address classes: Class ... Class Host IP Address 26 Nếukhôngchiamạngcon (subnet) p NIC sẽ không đủđịachỉđể cungcấp 4 IP address format 7 Bits củaIP address p Network Bits: n Xác định network ID n Xác định class củaIP address n ... subnet mask là 255.255.240.0 39 Thiếtlậpđịachỉ IP 12 IP address classes: Class B p2 bits củaClass B là 10. p2octets xác định địachỉ mạng. pDãy địachỉ IP private 128.0.0.0 - 191.255.0.0. pCòn lại...

Ngày tải lên: 13/12/2013, 22:15

Ngày tải lên: 21/12/2013, 19:15

Ngày tải lên: 21/12/2013, 19:15

... side. xx TCP/ IP Tutorial and Technical Overview  TCP/ IP and System p: http://www.ibm.com/systems/p/library/index.html  TCP/ IP and System i: http://www.ibm.com/servers/eserver/iseries/tcpip/index.html  ... the desktop and small computer market. In the meantime, TCP/ IP and the Internet were developing rapidly, with deployment occurring at a very high rate. 1.3 TCP/ IP standards TCP/ IP has been ... the TCP/ IP Tutorial and Technical Overview provides not only an introduction to the TCP/ IP protocol suite, but also serves as a reference for advanced users seeking to keep their TCP/ IP skills...

Ngày tải lên: 23/12/2013, 02:19

... original datagram, in units of 8 bytes Protocol 1 ICMP 17 UDP 57 SKIP 2 IGMP 47 GRE 88 EIGRP 6 TCP 50 ESP 89 OSPF 9 IGRP 51 AH 115 L2TP Header Checksum Covers IP header only Addressing NET_ID RFC ... Offset Time to Live Protocol Header Checksum Source Address Destination Address Options (optional) IP Header Contents Version 4 IP version 4 Internet Header Length Number of 32-bit words in IP header; ... cost) 1 = ECN capable x (reserved and set to 0) 1 = congestion experienced Total Length Number of bytes in packet; maximum length = 65,535 Flags (xDM) x (reserved and set to 0) D (1 = Don't...

Ngày tải lên: 23/12/2013, 02:19

... serial link. Step 15 The debug ip icmp command. Type the debug ip icmp command to see the results of ping and trace activity. The Cisco trace and TCP/ IP tracert commands both use the TTL feature ... show tcp commands. Type the show tcp ? command to see TCP activity. Particularly the show tcp statistics command gives a good summary of TCP traffic sent and received. SanJose1#show tcp ? ... 6 The show ip protocols command. Type the show ip protocols command to display the supported protocols. While the command displays all protocols, let’s look at the OSPF. The command displays...

Ngày tải lên: 18/01/2014, 05:20

... HostID. dùng TCP/ IP làm giao thức chính cho mạng Windows2000. TCP/ IP là tập hợp của nhiều protocols, mà trong số đó cú cỏc Protocols chỏnh sau õy: ã TCP (Transmission Control Protocol) : Chuyên ... (RFC) (Yêu cầu cho biết ý kiến). Nếu đa số các guru về TCP/ IP thấy hay thì có thể lần lần đề nghị ấy đuợc cho vào TCP/ IP. Những TCP/ IP protocols và các công cụ Như ta biết, truyền thông giữa ... còn an toàn gì cả. Phân chia giai cấp A,B,C Căn bản về TCP/ IP TCP/ IP (Transmission Control Protocol/ Internet Protocol) là một bộ protocols (giao thức) được thiết kế để đạt hai mục tiêu chính:...

Ngày tải lên: 19/01/2014, 04:20

... they form the basis of all TCP/ IP protocol implementations. xxiv TCP/ IP Tutorial and Technical Overview 22 TCP/ IP Tutorial and Technical Overview The process of standardization is summarized ... protocols, refer to Part 2, TCP/ IP application protocols” on page 405. Client A TCP/ IP Client B TCP/ IP Server TCP/ IP Internet Network Contents xiii 18.9 Wireless protocols . . . . . . . . . ... recently been teaching an “Advanced TCP/ IP Networking” class at Andres Bello University. 2 TCP/ IP Tutorial and Technical Overview Finally, other standard protocols exist that might not necessarily...

Ngày tải lên: 27/01/2014, 08:20

...  SNMP SNMP Networking Basics Networking Basics TCP/ IP TRANSPORT TCP/ IP TRANSPORT and and APPLICATION LAYER APPLICATION LAYER Version 3.0 Cisco Regional Networking Academy  TCP: TCP: Sequence and acknowledgment Sequence ... ctt@yahoo.com.  TCP: TCP: Window and Acknowledgment Window and Acknowledgment  TCP: TCP: Three way handshaking Three way handshaking A B

Ngày tải lên: 16/02/2014, 07:20

... Overview 1.1 TCP/ IP architectural model The TCP/ IP protocol suite is so named for two of its most important protocols: Transmission Control Protocol (TCP) and Internet Protocol (IP) . A less used ... refer to Part 2, TCP/ IP application protocols” on page 405. Client A TCP/ IP Client B TCP/ IP Server TCP/ IP Internet Network Chapter 1. Architecture, history, standards, and trends 13 than ... the desktop and small computer market. In the meantime, TCP/ IP and the Internet were developing rapidly, with deployment occurring at a very high rate. 1.3 TCP/ IP standards TCP/ IP has been...

Ngày tải lên: 18/02/2014, 00:20

... Communications, Industrial Networking and TCP/ IP 8 Notes Notes Communications, Industrial Networking and TCP/ IP 15 Industrial Networking and TCP/ IP 2 Industrial Networking and TCP/ IP 2.1 Introduction A ... Bits (LSB) are down the le hand side. 2 IDC Technologies Communications, Industrial Networking and TCP/ IP 3 Communications, Industrial Networking and TCP/ IP â 2012 IDC Technologies & ... asserting DSRS. Table 1.2 Circuit Functions Communications, Industrial Networking and TCP/ IP 17 Industrial Networking and TCP/ IP ã Ring or Loop Topology Figure 2.2 Example of Ring Network Topology ã...

Ngày tải lên: 31/03/2014, 16:20

... higher TCP throughput and 93.2% shorter handoff Figure 8 Total transmission time of MIPv6, HMIPv6, CNLP, and ADA in BT mode as a function of g and a.  Figure 9 Total handoff latency of MIPv6, HMIPv6, ... handoff, ADA and CNLP will on aver- age receive 5.47 more packets every second than HMIPv6 and MIPv6. Actually, the intra- domain handoff latency for HMIPv6 is shorter than for CNLP and for MIPv6. ... each other and significantly better than that of MIPv6 and HMIPv6. When the MN experiences one handoff, there will be a service disruption in TCP for all four protocols. However, the TCP throughput...

Ngày tải lên: 21/06/2014, 02:20

... Standard. Communications, Industrial Networking and TCP/ IP 8 Notes Notes Communications, Industrial Networking and TCP/ IP 13 Data Communications 1.5 The RS-422 Standard The RS-422 standard ... subtraction, multiplication, division, inversion, AND, OR, NAND and NOR. ARP Address Resolution Protocol. A Transmission Control Protocol/ Internet Protocol (TCP/ IP) process that maps an IP address ... Industrial Networking and TCP/ IP 30 Theory of Fiber Optic Transmission Figure 3.9 Comparison of Data Rate, Distance and Fiber Type Communications, Industrial Networking and TCP/ IP 27 Theory...

Ngày tải lên: 28/06/2014, 22:20

Ngày tải lên: 03/07/2014, 19:21

Ngày tải lên: 03/07/2014, 19:21