PPT - ME Kabay
... IBM proprietary and de facto standard – half-duplex – stop-and-wait ARQ – point-to-point and multipoint datacomm Designed for ASCII, EBCDIC (and rarely used ...
... IBM proprietary and de facto standard – half-duplex – stop-and-wait ARQ – point-to-point and multipoint datacomm Designed for ASCII, EBCDIC (and rarely used ...
Networking
... together to form a new network • Operates by forwarding data to specific systems on the network • May be able to be piggy-backed, but may also require crossover cables • Have unmanaged and managed modes where unmanaged refers to plug-and-play ...
... together to form a new network • Operates by forwarding data to specific systems on the network • May be able to be piggy-backed, but may also require crossover cables • Have unmanaged and managed modes where unmanaged refers to plug-and-play ...
Performance Metric
... CIS 527 Computer Networks Introduction Professor Jinhua Guo (updated version) Fall 2003 ...
... CIS 527 Computer Networks Introduction Professor Jinhua Guo (updated version) Fall 2003 ...
Layer One Networking
... Application layer Presentation layer Session layer Transport layer Network layer Data link layer Physical layer ...
... Application layer Presentation layer Session layer Transport layer Network layer Data link layer Physical layer ...
Introduction
... • Most digital signals are aperiodic thus period or frequency is not appropriate • Bit Interval is time required to send one single bit • Bit Rate is no of bits sent per second • Example: A digital signal has a bit rate of 2000 bps. What is the duration of each bit (bit interval) • Solution: The bit ...
... • Most digital signals are aperiodic thus period or frequency is not appropriate • Bit Interval is time required to send one single bit • Bit Rate is no of bits sent per second • Example: A digital signal has a bit rate of 2000 bps. What is the duration of each bit (bit interval) • Solution: The bit ...
Week 2: Routing vs. Switching
... Services based on Layer 2 addresses • Frame forwarding • Learning and Spanning tree routing ...
... Services based on Layer 2 addresses • Frame forwarding • Learning and Spanning tree routing ...
William Stallings Data and Computer Communications
... Synchronization – know start and stop of message Exchange Management – cooperation of parties Error detection and correction – where errors cannot be ...
... Synchronization – know start and stop of message Exchange Management – cooperation of parties Error detection and correction – where errors cannot be ...
n - CMLab
... by a direct link of R =1 Mbps. Suppose the propagation speed over the link is 2.5‧108 meters/sec. (a) Calculate the bandwidth-delay product, R‧tprop. (b) Consider sending a file of 400,000 bits from Host A to Host B. Suppose the file is sent continuously as one big message. What is the maximum numbe ...
... by a direct link of R =1 Mbps. Suppose the propagation speed over the link is 2.5‧108 meters/sec. (a) Calculate the bandwidth-delay product, R‧tprop. (b) Consider sending a file of 400,000 bits from Host A to Host B. Suppose the file is sent continuously as one big message. What is the maximum numbe ...
Protcols for Highly-Dynamic Airborne Networks
... Best-effort connections Best-effort datagrams (fully UDP compatible) ...
... Best-effort connections Best-effort datagrams (fully UDP compatible) ...
The Transport Layer
... • Is optional in UDP • If checksum is non-zero, and receiver computes another value: – Silently drop the packet, no error message detected ...
... • Is optional in UDP • If checksum is non-zero, and receiver computes another value: – Silently drop the packet, no error message detected ...
packet switching exchange (PSE)
... • A dynamic protocol that uses distance-vector routing algorithms to decipher which route to send data packets. • The protocol calculates the direction or interface that packets should be forwarded to, as well as the distance from the destination. • RIPv1 and RIPv2 are common among today’s networks. ...
... • A dynamic protocol that uses distance-vector routing algorithms to decipher which route to send data packets. • The protocol calculates the direction or interface that packets should be forwarded to, as well as the distance from the destination. • RIPv1 and RIPv2 are common among today’s networks. ...
Optical Burst Switching.pdf
... Internet. A router is connected to two or more data lines from different networks. When data comes in on one of the lines, the router reads the address information in the packet to determine its ultimate destination. Then, using information in its routing table, it directs the packet to the next net ...
... Internet. A router is connected to two or more data lines from different networks. When data comes in on one of the lines, the router reads the address information in the packet to determine its ultimate destination. Then, using information in its routing table, it directs the packet to the next net ...
CMPE 150 – Spring 06
... • Nonreturn to zero inverted on ones • Constant voltage pulse for duration of bit • Data encoded as presence or absence of signal transition at beginning of bit time • Transition (low to high or high to low) denotes a binary 1 • No transition denotes binary 0 • An example of differential encoding ...
... • Nonreturn to zero inverted on ones • Constant voltage pulse for duration of bit • Data encoded as presence or absence of signal transition at beginning of bit time • Transition (low to high or high to low) denotes a binary 1 • No transition denotes binary 0 • An example of differential encoding ...
doc - EECS: www-inst.eecs.berkeley.edu
... 3.3 Simple Example Consider a 100-Mbps optical link with a length of 10km. Assume the link transmits packets of 10000 bits. (The speed of light is 2x108 m/sec). From the start of a packet transmission until the last bit of the packet arrives at the receiver, it takes how much time? Latency = Transmi ...
... 3.3 Simple Example Consider a 100-Mbps optical link with a length of 10km. Assume the link transmits packets of 10000 bits. (The speed of light is 2x108 m/sec). From the start of a packet transmission until the last bit of the packet arrives at the receiver, it takes how much time? Latency = Transmi ...
01-Overview
... of frame relay fixed packet (called cell) length with little overhead for error control anything from 10Mbps to Gbps constant data rate using packet switching technique with multiple virtual circuits ...
... of frame relay fixed packet (called cell) length with little overhead for error control anything from 10Mbps to Gbps constant data rate using packet switching technique with multiple virtual circuits ...
Part I: Introduction
... nodal processing: check bit errors determine output link queueing time waiting at output link for transmission depends on congestion level of router ...
... nodal processing: check bit errors determine output link queueing time waiting at output link for transmission depends on congestion level of router ...
CiscoS3C8
... • 1. Identify network/user problem. • 2. Gather data about network/user problem. • 3. Analyze data to come up with a possible solution to the problem. • 4. Implement solution to network to attempt correction to the system. • 5. If the problem isn't resolved, undo previous changes and modify data. • ...
... • 1. Identify network/user problem. • 2. Gather data about network/user problem. • 3. Analyze data to come up with a possible solution to the problem. • 4. Implement solution to network to attempt correction to the system. • 5. If the problem isn't resolved, undo previous changes and modify data. • ...
Computers I 4.5 Network Physical Structures
... TCP/IP stands for Transmission Control Protocol / Internet Protocol These Protocols are organized in layers that each provides a specific function when sending information through a network such as the Internet. ...
... TCP/IP stands for Transmission Control Protocol / Internet Protocol These Protocols are organized in layers that each provides a specific function when sending information through a network such as the Internet. ...
Document
... • Issues – Many routers filter out ICMP packets – It goes thru slow path on routers – RTT includes end system processing time ...
... • Issues – Many routers filter out ICMP packets – It goes thru slow path on routers – RTT includes end system processing time ...
High-Level Data Link Control
... • Checksum: FCS contains the remainder of a 16-bit CRC calculation of the frame. It may be extended to 32 bits, using a 32-bit CRC • Control: Three types of frames, I, S and U frames. The old protocol uses a sliding window with 3-bit sequence number and the maximum window size is N = 7. The control ...
... • Checksum: FCS contains the remainder of a 16-bit CRC calculation of the frame. It may be extended to 32 bits, using a 32-bit CRC • Control: Three types of frames, I, S and U frames. The old protocol uses a sliding window with 3-bit sequence number and the maximum window size is N = 7. The control ...
Wireless Communications and Networks
... Covers the physical interface between a data transmission device and a transmission medium or network ...
... Covers the physical interface between a data transmission device and a transmission medium or network ...