Lecture 27 - University of Wisconsin
... store, forward Ethernet frames examine incoming frame’s MAC address, selectively forward frame to one-or-more outgoing links when frame is to be forwarded on segment, uses CSMA/CD to access segment ...
... store, forward Ethernet frames examine incoming frame’s MAC address, selectively forward frame to one-or-more outgoing links when frame is to be forwarded on segment, uses CSMA/CD to access segment ...
2003 - Msjc
... The collection of devices that will hear a broadcast message sent at the DataLink layer regardless of network structure The use of bridges and LAN switches allow a single network segment to be broken into multiple collision domains although they remain a part of the same broadcast domain ...
... The collection of devices that will hear a broadcast message sent at the DataLink layer regardless of network structure The use of bridges and LAN switches allow a single network segment to be broken into multiple collision domains although they remain a part of the same broadcast domain ...
TCP and UDP
... data for transport over the network and •Processes data for use by applications •Assembles data received by network layer ...
... data for transport over the network and •Processes data for use by applications •Assembles data received by network layer ...
Network Interface Cards - Stanford Secure Computer Systems Group
... • PCB contains protocol-specific info. E.g., for TCP: - Pointer to IP TCB w. source/destination IP address and port - Information about received packets & position in stream - Information about unacknowledged sent packets - Information about timeouts - Information about connection state (setup/teard ...
... • PCB contains protocol-specific info. E.g., for TCP: - Pointer to IP TCB w. source/destination IP address and port - Information about received packets & position in stream - Information about unacknowledged sent packets - Information about timeouts - Information about connection state (setup/teard ...
Local Area Networks
... Be “Stateful” -keep track of TCP outgoing SYN packets (start of all TCP connections) (hard work). ...
... Be “Stateful” -keep track of TCP outgoing SYN packets (start of all TCP connections) (hard work). ...
Chapter 17 - Networking Essentials
... Protocols at the Internetwork Layer • Address Resolution Protocol (cont.) – To avoid sending an ARP request every time an IP packet is sent, PCs and other devices store learned IP address/MAC address pairs in an ARP cache, which is a temporary location in RAM – If the destination computer is on ano ...
... Protocols at the Internetwork Layer • Address Resolution Protocol (cont.) – To avoid sending an ARP request every time an IP packet is sent, PCs and other devices store learned IP address/MAC address pairs in an ARP cache, which is a temporary location in RAM – If the destination computer is on ano ...
Lecture 1
... – End to End Layers: • 7 – Application: interfaces directly with the user • 6 – Presentation: provides data independence (different representation of numbers, network byte order) ...
... – End to End Layers: • 7 – Application: interfaces directly with the user • 6 – Presentation: provides data independence (different representation of numbers, network byte order) ...
Internetworking, or IP and Networking Basics
... » encapsulates network layer packet inside data link layer frame » different framing on different underlying network types » receive from one link, forward to another link » There can be many hops from source to destination ...
... » encapsulates network layer packet inside data link layer frame » different framing on different underlying network types » receive from one link, forward to another link » There can be many hops from source to destination ...
DCN-9-Communication-Services
... •Address of where it is supposed to reach. –Destination IP address. ...
... •Address of where it is supposed to reach. –Destination IP address. ...
Communications Model
... • The complexity of the communication task is reduced by using multiple protocol layers: • Each protocol is implemented independently • Each protocol is responsible for a specific subtask • Protocols are grouped in a hierarchy • A structured set of protocols is called a communications architecture o ...
... • The complexity of the communication task is reduced by using multiple protocol layers: • Each protocol is implemented independently • Each protocol is responsible for a specific subtask • Protocols are grouped in a hierarchy • A structured set of protocols is called a communications architecture o ...
Introduction - SNS Courseware
... • The receiver sends an ACK when receiving an frame. • Neighbors keep silent until see ACK. • Collisions • There is no collision detection. • The senders know collision when they don’t receive CTS. • They each wait for the exponential backoff time. ...
... • The receiver sends an ACK when receiving an frame. • Neighbors keep silent until see ACK. • Collisions • There is no collision detection. • The senders know collision when they don’t receive CTS. • They each wait for the exponential backoff time. ...
Lecture notes I ppt-495KB
... The lowest layer, the physical layer, is concerned with transmitting raw bits over a communication channel. It is concerned with insuring that when one side sends a ``1'' bit, the other side receives a ``1'' bit. The physical layer is usually the focus of an electrical engineer and deals with such q ...
... The lowest layer, the physical layer, is concerned with transmitting raw bits over a communication channel. It is concerned with insuring that when one side sends a ``1'' bit, the other side receives a ``1'' bit. The physical layer is usually the focus of an electrical engineer and deals with such q ...
High Speed 1760 and FC-AE-1553
... specifies the use of a switched fabric. The fabric topology provides advantages in terms of the number of nodes supported and aggregate data throughput. Fibre Channel provides a highly robust low level protocol providing strong throughput and latency performance, along with provisions for flow contr ...
... specifies the use of a switched fabric. The fabric topology provides advantages in terms of the number of nodes supported and aggregate data throughput. Fibre Channel provides a highly robust low level protocol providing strong throughput and latency performance, along with provisions for flow contr ...
3rd Edition, Chapter 5 - Northwestern Networks Group
... Link Layer Services framing, link access: ...
... Link Layer Services framing, link access: ...
Data Link Layer: Flow Control Stop-and
... • Such elementary protocols are also called PAR (Positive Acknowledgment with Retransmission) or ARQ (Automatic Repeat reQuest). • Data frames are transmitted in one direction (simplex protocols ) where each frame is individually acknowledge by the receiver by a separate acknowledgment frame. • The ...
... • Such elementary protocols are also called PAR (Positive Acknowledgment with Retransmission) or ARQ (Automatic Repeat reQuest). • Data frames are transmitted in one direction (simplex protocols ) where each frame is individually acknowledge by the receiver by a separate acknowledgment frame. • The ...
Congestion Control
... • Used by hosts & routers to communicate network-level information – Error reporting ...
... • Used by hosts & routers to communicate network-level information – Error reporting ...
CS412 Computer Networks - Winona State University
... Sender: Data and control passed to layer below Data transmitted via physical media Receiver: Data and control passed to layer ...
... Sender: Data and control passed to layer below Data transmitted via physical media Receiver: Data and control passed to layer ...
Chapter 1
... • This can be done to an extent by ‘tunneling’. • Make multiple physical layers look like one layer to the IP layer by encapsulating layer ...
... • This can be done to an extent by ‘tunneling’. • Make multiple physical layers look like one layer to the IP layer by encapsulating layer ...