lecture8
... • Binary encoding – Hard to distinguish 0 bit (0-volt) from idle (0-volt) – Requires clocks of all stations synchronized ...
... • Binary encoding – Hard to distinguish 0 bit (0-volt) from idle (0-volt) – Requires clocks of all stations synchronized ...
Limitations of Layer2 switching
... Flooding is used to distribute link-state packets. As the linkstate packets are flowing around the network, they must be managed. New ones are used to update and also sent on to adjacent nodes. Old ones are ignored and not forwarded. Using both Age and Sequence # prevents problems when routers reboo ...
... Flooding is used to distribute link-state packets. As the linkstate packets are flowing around the network, they must be managed. New ones are used to update and also sent on to adjacent nodes. Old ones are ignored and not forwarded. Using both Age and Sequence # prevents problems when routers reboo ...
Raising BACnet® to the Next Level
... important. That was not the case in the last decade of BACnet development in which several data link technologies were included — including Ethernet. But Ethernet is not IP, although it works well with IP networks. The BACnet community recognized the need for a convenient method of attaching to IP n ...
... important. That was not the case in the last decade of BACnet development in which several data link technologies were included — including Ethernet. But Ethernet is not IP, although it works well with IP networks. The BACnet community recognized the need for a convenient method of attaching to IP n ...
... A SYN flood is a form of denial-of-service attack in which an attacker sends a succession of SYN requests to a target's system. A malicious client can skip sending this last ACK message. Or by spoofing the source IP address in the SYN, it makes the server send the SYN-ACK to the falsified IP address ...
wireless broadband router base station-g
... AirStation 54Mbps Wireless Broadband Router Base Station and will help you connect to your broadband internet connection quickly. The high-speed AirStation Broadband Router Base Station (Access Point or AP), is a wireless 4-port router small/ medium business (SMB) network device that complies with t ...
... AirStation 54Mbps Wireless Broadband Router Base Station and will help you connect to your broadband internet connection quickly. The high-speed AirStation Broadband Router Base Station (Access Point or AP), is a wireless 4-port router small/ medium business (SMB) network device that complies with t ...
Addressing - Punjab University College of Information
... Which protocol is the desired recipient? Which protocol constructed the packet? IP ...
... Which protocol is the desired recipient? Which protocol constructed the packet? IP ...
1111 3333
... number of repeaters and segments on shared access Ethernet backbones in a tree topology. The 5-4-3 rule divides the network into two types of physical segments: populated (user) segments, and unpopulated (link) segments. User segments have users' systems connected to them. Link segments are used to ...
... number of repeaters and segments on shared access Ethernet backbones in a tree topology. The 5-4-3 rule divides the network into two types of physical segments: populated (user) segments, and unpopulated (link) segments. User segments have users' systems connected to them. Link segments are used to ...
FLATLANd: A Novel SDN-based Flat Layer-2
... the data throughput for a TCP connection. Where packets are buffered rather than dropped, the congestion algorithms do not alter their congestion windows appropriately. As a consequence, packets which have been subjected to long or variable buffering may arrive with either high latency or jitter [7] ...
... the data throughput for a TCP connection. Where packets are buffered rather than dropped, the congestion algorithms do not alter their congestion windows appropriately. As a consequence, packets which have been subjected to long or variable buffering may arrive with either high latency or jitter [7] ...
4Links Multi-link SpaceWire Analyzer MSA
... While PCs need to be replaced every few years, projects can last a decade or more. Ethernet and IP allow the use of the test equipment throughout the project, even as the computers and OS are changed. Detailed information about the wire signals, before during and after a SpaceWire protocol error, is ...
... While PCs need to be replaced every few years, projects can last a decade or more. Ethernet and IP allow the use of the test equipment throughout the project, even as the computers and OS are changed. Detailed information about the wire signals, before during and after a SpaceWire protocol error, is ...
Internet Secure Protocols
... almost (but not quite) as safe as a node disconnected from the net. Internal routers should not advertise paths to such nodes to the outside. Filter routes learned from the outside: ...
... almost (but not quite) as safe as a node disconnected from the net. Internal routers should not advertise paths to such nodes to the outside. Filter routes learned from the outside: ...
COEN 351
... almost (but not quite) as safe as a node disconnected from the net. Internal routers should not advertise paths to such nodes to the outside. Filter routes learned from the outside: ...
... almost (but not quite) as safe as a node disconnected from the net. Internal routers should not advertise paths to such nodes to the outside. Filter routes learned from the outside: ...
Spanning Tree Protocol (STP)
... TCP and IP headers and save bandwidth. • Van Jacobson TCP/IP header compression reduces the size of the TCP/IP headers to as few as 3 bytes. • This can be a significant improvement on slow serial lines, particularly for interactive traffic. ...
... TCP and IP headers and save bandwidth. • Van Jacobson TCP/IP header compression reduces the size of the TCP/IP headers to as few as 3 bytes. • This can be a significant improvement on slow serial lines, particularly for interactive traffic. ...
21netsec
... packets. This has caused the campus backbone to be up and down most of yesterday. The attack seems to start with connection attempts to port 1025 (Active Directory logon, which fails), then 6129 (DameWare backdoor, which fails), then 80 (which works as the 3Com’s support a web server, which can’t be ...
... packets. This has caused the campus backbone to be up and down most of yesterday. The attack seems to start with connection attempts to port 1025 (Active Directory logon, which fails), then 6129 (DameWare backdoor, which fails), then 80 (which works as the 3Com’s support a web server, which can’t be ...
Migration Strategies for Token Ring Users
... upcoming VLAN tagging IEEE 802.1Q standard — Token Ringin-Fast Ethernet (TR-in-FE). TR-in-FE technology simply tunnels Token Ring frames through Fast Ethernet frames. Rather than taking all the information from one type of packet and translating it to another format as bridges or routers do, TR-in-F ...
... upcoming VLAN tagging IEEE 802.1Q standard — Token Ringin-Fast Ethernet (TR-in-FE). TR-in-FE technology simply tunnels Token Ring frames through Fast Ethernet frames. Rather than taking all the information from one type of packet and translating it to another format as bridges or routers do, TR-in-F ...
Network Security Attacks & Defenses
... Why the Flaws? • TCP/IP was designed for connectivity – Had its origins in an innocent world – Assumed to have lots of trust – Security not intrinsic to design ...
... Why the Flaws? • TCP/IP was designed for connectivity – Had its origins in an innocent world – Assumed to have lots of trust – Security not intrinsic to design ...
1 Which statement is true about MAC addresses?
... Logical link control is implemented in software. Logical link control is specified in the IEEE 802.3 standard. The LLC sublayer interacts directly with the NIC driver software. The data link layer uses LLC to communicate with the upper layers of the protocol suite. The LLC sublayer is responsible fo ...
... Logical link control is implemented in software. Logical link control is specified in the IEEE 802.3 standard. The LLC sublayer interacts directly with the NIC driver software. The data link layer uses LLC to communicate with the upper layers of the protocol suite. The LLC sublayer is responsible fo ...
William Stallings Data and Computer Communications
... is broken into the series of ATM cells, and transmitted over the ATM backbone using the ATM virtual circuit identifier. Unfortunately this process can cause quite a delay (a reduction up to 50 %). ...
... is broken into the series of ATM cells, and transmitted over the ATM backbone using the ATM virtual circuit identifier. Unfortunately this process can cause quite a delay (a reduction up to 50 %). ...
Hands-on Networking Fundamentals
... • Uses cells instead of packets – Cell has three parts: header, control data, data payload ...
... • Uses cells instead of packets – Cell has three parts: header, control data, data payload ...
CAS: Central Authentication Service
... • IP packets are datagrams: – individually addressed packages, like envelopes in mail – "connectionless": every packet is independent of all others – unreliable -- packets can be damaged, lost, duplicated, delivered out of ...
... • IP packets are datagrams: – individually addressed packages, like envelopes in mail – "connectionless": every packet is independent of all others – unreliable -- packets can be damaged, lost, duplicated, delivered out of ...
Internetwork - Department of Computer Engineering
... Dijkstra algorithm used it to characterize the way it works To use LSR, packet switches periodically send messages across the network that carry the status of a link Every switch collects incoming status messages ...
... Dijkstra algorithm used it to characterize the way it works To use LSR, packet switches periodically send messages across the network that carry the status of a link Every switch collects incoming status messages ...
NIH PCKD/Emory University
... • 2 Patients Scanned with NIH Protocol • Both: Comparison with “Old Protocol” – Visual comparison – No SNR measurements performed ...
... • 2 Patients Scanned with NIH Protocol • Both: Comparison with “Old Protocol” – Visual comparison – No SNR measurements performed ...
PPT
... • At one point, ATM was viewed as a replacement for IP. • Could carry both traditional telephone traffic (CBR circuits) and other traffic (data, VBR) • Better than IP, since it supports QoS • Complex technology. • Switching core is fairly simple, but • Support for different traffic classes • Signali ...
... • At one point, ATM was viewed as a replacement for IP. • Could carry both traditional telephone traffic (CBR circuits) and other traffic (data, VBR) • Better than IP, since it supports QoS • Complex technology. • Switching core is fairly simple, but • Support for different traffic classes • Signali ...
ATM - La Salle University
... Establishing an connection • In the connection-oriented approach, transmission is requested and accepted. • Recall the DB9 connector (from homework), in addition to the Receive Data, Transmit Data, there were pins such as Carrier Detect, Request to Send, Clear to Send, etc. These are control pins u ...
... Establishing an connection • In the connection-oriented approach, transmission is requested and accepted. • Recall the DB9 connector (from homework), in addition to the Receive Data, Transmit Data, there were pins such as Carrier Detect, Request to Send, Clear to Send, etc. These are control pins u ...