EE 122: Computer Networks
... Security Implications of ICMP? • Attacker can cause host to accept an ICMP if the excerpt looks correct (assuming the host checks) – Must guess recent IP packet header & 8B of payload – All that really matters is source/destination addresses and ports ...
... Security Implications of ICMP? • Attacker can cause host to accept an ICMP if the excerpt looks correct (assuming the host checks) – Must guess recent IP packet header & 8B of payload – All that really matters is source/destination addresses and ports ...
Agenda
... It is worth pointing out that packet-over-SONET (POS) interfaces are used, so there is SONET framing in the architecture to provide management capabilities like inline monitoring, framing and synchronization. The architecture is still referred to as IP-DWDM as there is no discrete SONET equipment be ...
... It is worth pointing out that packet-over-SONET (POS) interfaces are used, so there is SONET framing in the architecture to provide management capabilities like inline monitoring, framing and synchronization. The architecture is still referred to as IP-DWDM as there is no discrete SONET equipment be ...
Transport Control Protocol (TCP) & Applications
... • TCP monitors network health through segment transmission, i.e. ACK or timeout – first lost segment, TCP backs right off and sends just one segment – if this is not lost, doubles data size and sends two segments – continues exponential growth until half receiver’s window size is reached then slows ...
... • TCP monitors network health through segment transmission, i.e. ACK or timeout – first lost segment, TCP backs right off and sends just one segment – if this is not lost, doubles data size and sends two segments – continues exponential growth until half receiver’s window size is reached then slows ...
Appendix B - Roaming
... the situation. Essentially this means that either the applications or intervening hardware has failed to get an acknowledgement from the destination to say the data has been received. When this happens then the sender could redo the ARP message in order to relearn the MAC address route or the switch ...
... the situation. Essentially this means that either the applications or intervening hardware has failed to get an acknowledgement from the destination to say the data has been received. When this happens then the sender could redo the ARP message in order to relearn the MAC address route or the switch ...
EN7278
... A vehicular ad-hoc network (VANET) is a technology that is used to create a mobile network using moving cars. Here VANET will take the participating car, to form a router or node. VANET allows car to connect each other with an approximate range of 100 to 300 meters. Interconnecting the cars with eac ...
... A vehicular ad-hoc network (VANET) is a technology that is used to create a mobile network using moving cars. Here VANET will take the participating car, to form a router or node. VANET allows car to connect each other with an approximate range of 100 to 300 meters. Interconnecting the cars with eac ...
network layer
... • Packets are called datagrams (in analogy with telegrams) and the subnet is called a datagram subnet. . • Each datagram contains full destination addrs • Every router has an internal table telling it where to send packets for each possible destination. • Each table entry is a pair consisting of a d ...
... • Packets are called datagrams (in analogy with telegrams) and the subnet is called a datagram subnet. . • Each datagram contains full destination addrs • Every router has an internal table telling it where to send packets for each possible destination. • Each table entry is a pair consisting of a d ...
Darwin: Customizable Resource Management for Value
... • Addressing determines which packets are kept and which are packets are thrown away • Packets can be sent to: • Unicast – one destination • Multicast – group of nodes (e.g. “everyone playing Quake”) • Broadcast – everybody on wire ...
... • Addressing determines which packets are kept and which are packets are thrown away • Packets can be sent to: • Unicast – one destination • Multicast – group of nodes (e.g. “everyone playing Quake”) • Broadcast – everybody on wire ...
A Survey of Secure Wireless Ad Hoc Routing
... packet that includes the target D, its certificate (certS), a nonce N, and a timestamp t. 2. Each node that forwards this REQUEST checks the signature or signatures. Node C checks node B’s certificate certB, then checks the signature on the outer message. C then verifies the certificate certS for in ...
... packet that includes the target D, its certificate (certS), a nonce N, and a timestamp t. 2. Each node that forwards this REQUEST checks the signature or signatures. Node C checks node B’s certificate certB, then checks the signature on the outer message. C then verifies the certificate certS for in ...
EECC694 - Shaaban
... • Bootstrap protocol BOOTP: Uses UDP packets which can be forwarded to routers No need for a BOOTP server on each LAN. EECC694 - Shaaban #17 lec #9 Spring2000 4-4-2000 ...
... • Bootstrap protocol BOOTP: Uses UDP packets which can be forwarded to routers No need for a BOOTP server on each LAN. EECC694 - Shaaban #17 lec #9 Spring2000 4-4-2000 ...
D400 - GE Grid Solutions
... files such as ICD, CID, SCD) or directly from the intelligent substation device using the IEC 61850 self-description. The IEC 61850 device loader allows users to pick the specific logical nodes or data sets to be used for automation tasks or to be placed in the D400 database for upstream communicati ...
... files such as ICD, CID, SCD) or directly from the intelligent substation device using the IEC 61850 self-description. The IEC 61850 device loader allows users to pick the specific logical nodes or data sets to be used for automation tasks or to be placed in the D400 database for upstream communicati ...
Network Layer - SI-35-02
... • The network layer is responsible for navigating the data through the network. • The function of the network layer is to find the best path through the network. • The network layer's addressing scheme is used by devices to determine the destination of data as it moves through the network. • In this ...
... • The network layer is responsible for navigating the data through the network. • The function of the network layer is to find the best path through the network. • The network layer's addressing scheme is used by devices to determine the destination of data as it moves through the network. • In this ...
Computer Networking Basics
... • A Local Area Network spans a relatively small area • LAN are usually confined to one building or a group of buildings • Data travel between network devices via network cables. • The most common type of Local Area Network is called Ethernet ...
... • A Local Area Network spans a relatively small area • LAN are usually confined to one building or a group of buildings • Data travel between network devices via network cables. • The most common type of Local Area Network is called Ethernet ...
DZ21798800
... establishment and files to be transmitted has completed, the same software will transfer the files to the buffer memory for the Wi-Fi driver to pick up the data. Secondly, inside the bridge, at the Wi-Fi device end, the driver will take the data from buffer and will send it to the destination device ...
... establishment and files to be transmitted has completed, the same software will transfer the files to the buffer memory for the Wi-Fi driver to pick up the data. Secondly, inside the bridge, at the Wi-Fi device end, the driver will take the data from buffer and will send it to the destination device ...
Unit One – The Basics of Computer Networking
... • A Local Area Network spans a relatively small area • LAN are usually confined to one building or a group of buildings • Data travel between network devices via network cables. • The most common type of Local Area Network is called Ethernet ...
... • A Local Area Network spans a relatively small area • LAN are usually confined to one building or a group of buildings • Data travel between network devices via network cables. • The most common type of Local Area Network is called Ethernet ...
Overlay networks
... multiple paths exist between any sender and receiver pair Quick reconfigurable and robust Excessive message overhead ...
... multiple paths exist between any sender and receiver pair Quick reconfigurable and robust Excessive message overhead ...
Lesson 2-3: Ethernet Basics
... before attempting to retransmit data. The random time provision prevents simultaneous retransmissions. All devices on the same Carrier Sense Multiple Access/Collision Detection wire segment are part of the same collision domain. A collision domain is defined as those devices that share CSMA/CD of th ...
... before attempting to retransmit data. The random time provision prevents simultaneous retransmissions. All devices on the same Carrier Sense Multiple Access/Collision Detection wire segment are part of the same collision domain. A collision domain is defined as those devices that share CSMA/CD of th ...
paper
... Abstract—Parallel transmission is a known technique of transmitting flows over multiple paths from a source towards the same destination. In high-speed Ethernet standards, for instance, large bandwidth flows are inverse-multiplexed into multiple lowerspeed flows and transmitted in parallel. However, ...
... Abstract—Parallel transmission is a known technique of transmitting flows over multiple paths from a source towards the same destination. In high-speed Ethernet standards, for instance, large bandwidth flows are inverse-multiplexed into multiple lowerspeed flows and transmitted in parallel. However, ...