PPT
... Ethernet Frame Structure (cont.) • Each protocol layer needs to provide some hooks to upper layer protocols • Demultiplexing: identify which upper layer protocol packet belongs to • E.g., port numbers allow TCP/UDP to identify target application • Ethernet uses Type field ...
... Ethernet Frame Structure (cont.) • Each protocol layer needs to provide some hooks to upper layer protocols • Demultiplexing: identify which upper layer protocol packet belongs to • E.g., port numbers allow TCP/UDP to identify target application • Ethernet uses Type field ...
02-Protocols and TCP-IP
... Trace of Simple Operation • Process associated with port 1 in host A sends message to port 2 in host B • Process at A hands down message to TCP to send to port 2 • TCP hands down to IP to send to host B • IP hands down to network layer (e.g. Ethernet) to send to router J • Generates a set of encaps ...
... Trace of Simple Operation • Process associated with port 1 in host A sends message to port 2 in host B • Process at A hands down message to TCP to send to port 2 • TCP hands down to IP to send to host B • IP hands down to network layer (e.g. Ethernet) to send to router J • Generates a set of encaps ...
Chapter 17-20
... Length of Protocol Address field depend on protocol, IPv4 uses 32-bit address ...
... Length of Protocol Address field depend on protocol, IPv4 uses 32-bit address ...
CHAPTER 1: Computer Systems
... 2. Dynamic Host Configuration Protocol (DHCP) Maintain a bank of available IP addresses and assign them dynamically to computers for use when the computers are attached to the network Method often used by large organizations, DSL and cable providers DHCP client on computer or network device br ...
... 2. Dynamic Host Configuration Protocol (DHCP) Maintain a bank of available IP addresses and assign them dynamically to computers for use when the computers are attached to the network Method often used by large organizations, DSL and cable providers DHCP client on computer or network device br ...
Data Modeling - Computer Science at Hiram College
... • Routing table is initially empty • For every frame, store source LAN address, incoming interface, and current time in table • If destination LAN address isn’t in table, forward to all interfaces, but if it is in the table, forward to only the correct interface • If an address in the table is too o ...
... • Routing table is initially empty • For every frame, store source LAN address, incoming interface, and current time in table • If destination LAN address isn’t in table, forward to all interfaces, but if it is in the table, forward to only the correct interface • If an address in the table is too o ...
The fundamentals of TCP/IP networking
... Error functions to determine the most likely way a packet will travel to it destination. What Traceroute does is principally this. First ping the destination with a TTL of 1. The packet will be discarded by the local router when it decrements TTL and it will send an ICMP error back, from which Trace ...
... Error functions to determine the most likely way a packet will travel to it destination. What Traceroute does is principally this. First ping the destination with a TTL of 1. The packet will be discarded by the local router when it decrements TTL and it will send an ICMP error back, from which Trace ...
NETWORK
... Broadcast Network :This technology is genrelly used in LAN environment ,Traffic can be Unicast, Multicast or Broadcast ...
... Broadcast Network :This technology is genrelly used in LAN environment ,Traffic can be Unicast, Multicast or Broadcast ...
IP - Florida State University
... • The NAT box will convert the internal IP address to the real IP address of the company, and pass the packet to the gateway router. • When there is a packet destined for an internal machine arrived at the router, what should the router and NAT box do? • For IP packets carrying TCP or UDP, use port ...
... • The NAT box will convert the internal IP address to the real IP address of the company, and pass the packet to the gateway router. • When there is a packet destined for an internal machine arrived at the router, what should the router and NAT box do? • For IP packets carrying TCP or UDP, use port ...
4. TCP/IP - Faculty of Computer Science and Information Technology
... locate the MAC address for the destination. If the source locates an entry in its table, it will associate the IP address to the MAC address If not found, the host broadcasts an ARP request If one of the local devices matches the IP address of the request, it sends back an ARP reply that conta ...
... locate the MAC address for the destination. If the source locates an entry in its table, it will associate the IP address to the MAC address If not found, the host broadcasts an ARP request If one of the local devices matches the IP address of the request, it sends back an ARP reply that conta ...
Chapter 2 (cont..)
... Telnet (RFC 854) • Provides general bi-directional byte-oriented TCP-based communications facility (Network Virtual Terminal) • Initiating machine treated as local to the remote host • Used to connect to port # of other servers and to interact with Serverthem using command line process ...
... Telnet (RFC 854) • Provides general bi-directional byte-oriented TCP-based communications facility (Network Virtual Terminal) • Initiating machine treated as local to the remote host • Used to connect to port # of other servers and to interact with Serverthem using command line process ...
Communication Networks Overview Nodes and Links Nodes and
... only pay the bus while you ride it. The fare is cheap because you can share the bus with many other people. But the bus route is fixed and you may have to change along the way to get to your destination. In addition, you may have to wait for the next available bus. This is similar to packet switchin ...
... only pay the bus while you ride it. The fare is cheap because you can share the bus with many other people. But the bus route is fixed and you may have to change along the way to get to your destination. In addition, you may have to wait for the next available bus. This is similar to packet switchin ...
DVTEL Latitude 6 Introduction to Networking
... Moving data within a LAN (Local Area Network) is simple as the switch directs traffic to the appropriate port via the MAC address. Even with Switches, saturation can occur as the network grows. A WAN (Wide Area Network) is made up of multiple LAN’s connected together by routers. Each LAN is typicall ...
... Moving data within a LAN (Local Area Network) is simple as the switch directs traffic to the appropriate port via the MAC address. Even with Switches, saturation can occur as the network grows. A WAN (Wide Area Network) is made up of multiple LAN’s connected together by routers. Each LAN is typicall ...
SAVAH: Source address validation with Host Identity Protocol
... require large scale deployment •Filtering based solutions, such as ingress filtering, are easy to deploy but lack security and accountability ...
... require large scale deployment •Filtering based solutions, such as ingress filtering, are easy to deploy but lack security and accountability ...
NETWORK FUNDAMENTALS
... IP Addresses Unique number used by computers to refer to each other when sending information through the Internet ...
... IP Addresses Unique number used by computers to refer to each other when sending information through the Internet ...
Sep 27, 2007
... Host A has a large amount of data that must be reliably sent to Host B. Assuming Stopand-Wait protocol is used to assure reliable delivery, the data frame size is 1000 bytes each, and the ACK frame size is 64 bytes. (A). Assuming that Host B takes 0 time to process an incoming data and send an ACK f ...
... Host A has a large amount of data that must be reliably sent to Host B. Assuming Stopand-Wait protocol is used to assure reliable delivery, the data frame size is 1000 bytes each, and the ACK frame size is 64 bytes. (A). Assuming that Host B takes 0 time to process an incoming data and send an ACK f ...
Advanced Computer Networks
... Wireless Networks and Mobile IP: Infrastructure of Wireless Networks, Wireless LAN Technologies. IEK1: S02.11 Wireless Standard, Cellular Networks, Mobile IP, Wireless Mesh Networks (WMNs) - Optical Networks and WDM Systems: Overview of Optical Networks, Basic Optical Networking Devices, Large-Scale ...
... Wireless Networks and Mobile IP: Infrastructure of Wireless Networks, Wireless LAN Technologies. IEK1: S02.11 Wireless Standard, Cellular Networks, Mobile IP, Wireless Mesh Networks (WMNs) - Optical Networks and WDM Systems: Overview of Optical Networks, Basic Optical Networking Devices, Large-Scale ...
Module 9
... • If the interface misses three consecutive keepalives, the line protocol is marked as down • If the line is down Layer 1 problem Cabling, connectors, equipment powered off or malfunctioning Administratively down - manually disabled in the configuration ...
... • If the interface misses three consecutive keepalives, the line protocol is marked as down • If the line is down Layer 1 problem Cabling, connectors, equipment powered off or malfunctioning Administratively down - manually disabled in the configuration ...
Section 09a
... – Nodes and servers share data roles – Nodes are called clients – Servers are used to control access – Database software • Access to data controlled by server ...
... – Nodes and servers share data roles – Nodes are called clients – Servers are used to control access – Database software • Access to data controlled by server ...
Chapter 14
... computers into a VLAN and to move workstations while maintaining their VLAN connection. Because VLANs are identified by addresses or switch ports and not by physical connections, LAN nodes can be moved from one location to another and remain on the same VLAN without having to change connections at t ...
... computers into a VLAN and to move workstations while maintaining their VLAN connection. Because VLANs are identified by addresses or switch ports and not by physical connections, LAN nodes can be moved from one location to another and remain on the same VLAN without having to change connections at t ...
csci5211: Computer Networks and Data Communications
... – packets: packet switching – calls: circuit switching communication links – fiber, copper, radio, … Different links transmit data with different transmission speed measured in bit/sec ...
... – packets: packet switching – calls: circuit switching communication links – fiber, copper, radio, … Different links transmit data with different transmission speed measured in bit/sec ...
Chapter 9
... • Two computers, anywhere in the world, following certain hardware, software, and protocol specifications, can communicate reliably. Standardization of practices and procedures for moving data across networks has made the Internet possible. ...
... • Two computers, anywhere in the world, following certain hardware, software, and protocol specifications, can communicate reliably. Standardization of practices and procedures for moving data across networks has made the Internet possible. ...
投影片 1
... destination vehicle as long as one exists. • Currently, our protocol is designed for IVC networks formed by a few vehicles moving on the same lane. ...
... destination vehicle as long as one exists. • Currently, our protocol is designed for IVC networks formed by a few vehicles moving on the same lane. ...
Review of Researches in Controller Area Networks Evolution and
... many others. CAN was designed to allow microcontrollers and devices to communicate with each other without the presence of a host computer and avoiding extensive load to the main controller. It is a high performance and high reliable advanced serial communication protocol which effectively supports ...
... many others. CAN was designed to allow microcontrollers and devices to communicate with each other without the presence of a host computer and avoiding extensive load to the main controller. It is a high performance and high reliable advanced serial communication protocol which effectively supports ...