POX-OVS-Mininet - CSE Labs User Home Pages
... • Read state Controller queries table, flow, or port counters ...
... • Read state Controller queries table, flow, or port counters ...
Receiver
... recall: UDP checksum to detect bit errors the question: how to recover from errors: acknowledgements (ACKs): receiver explicitly tells sender ...
... recall: UDP checksum to detect bit errors the question: how to recover from errors: acknowledgements (ACKs): receiver explicitly tells sender ...
transport layer
... may receive duplicate ACKs (see receiver) timer for each in-flight pkt timeout(n): retransmit pkt n and all higher seq # pkts in window ...
... may receive duplicate ACKs (see receiver) timer for each in-flight pkt timeout(n): retransmit pkt n and all higher seq # pkts in window ...
Network Hacking: Exploits, Intrusions and Defenses
... First: TCP (connection-based services) Later: UDP & ICMP (connection-less services) To send a TCP request, must initiate connection ...
... First: TCP (connection-based services) Later: UDP & ICMP (connection-less services) To send a TCP request, must initiate connection ...
Network Security - University of Engineering and Technology
... Covert Channel Attacks Firewalls and filtering routers do not check the data content, so it is possible to transmit malicious information in this packet. ► This is a covert channel. Most network routers pass, drop or return ICMP traffic. Since they don't filter the data content, it is possible to m ...
... Covert Channel Attacks Firewalls and filtering routers do not check the data content, so it is possible to transmit malicious information in this packet. ► This is a covert channel. Most network routers pass, drop or return ICMP traffic. Since they don't filter the data content, it is possible to m ...
Lecture 14
... layer to deal with the communications network (hiding the details from the upper layers). The network layer is responsible for routing data through the network, but with a broadcast network, routing is not needed. Other functions, such as sequencing, flow control, error control between end systems, ...
... layer to deal with the communications network (hiding the details from the upper layers). The network layer is responsible for routing data through the network, but with a broadcast network, routing is not needed. Other functions, such as sequencing, flow control, error control between end systems, ...
week8-1
... 11. NIC-C does two checkings; If failed, the packet will be discarded a) Length checking: the payload should be between 46 and 1500 bytes b) CRC checking 12. If the packet passes all checkings, NIC-C will strip off SOH, EOT, CRC, and forward “|C|A|I like you|” to P-C ...
... 11. NIC-C does two checkings; If failed, the packet will be discarded a) Length checking: the payload should be between 46 and 1500 bytes b) CRC checking 12. If the packet passes all checkings, NIC-C will strip off SOH, EOT, CRC, and forward “|C|A|I like you|” to P-C ...
Lecture 7
... • The IP layer allows packets to be sent over gateways to machines not on the physical network • Addresses used are IP addresses, 32-bit numbers divided into a network address (used for routing) and a host address • The IP protocol is connectionless, implying: – gateways route discrete packets indep ...
... • The IP layer allows packets to be sent over gateways to machines not on the physical network • Addresses used are IP addresses, 32-bit numbers divided into a network address (used for routing) and a host address • The IP protocol is connectionless, implying: – gateways route discrete packets indep ...
IP address
... • Used after a virtual connection setup by RSVP or RTSP • Adds a sequence number and a timestamp for helping applications to synchronize delivery • Uses UDP (because of its small header) as transport ...
... • Used after a virtual connection setup by RSVP or RTSP • Adds a sequence number and a timestamp for helping applications to synchronize delivery • Uses UDP (because of its small header) as transport ...
c - Mehran UET Scholars
... block traffic from hosts that make failed connection attempts to too many other hosts ...
... block traffic from hosts that make failed connection attempts to too many other hosts ...
Linux+ Guide to Linux Certification
... • Protocols define the standards for communication between nodes on a network • TCP/IP is most popular protocol suite, because of its low cost, open nature, ability to communicate between dissimilar platforms, and routability • TCP provides reliability through checksum, flow control, and sequencing ...
... • Protocols define the standards for communication between nodes on a network • TCP/IP is most popular protocol suite, because of its low cost, open nature, ability to communicate between dissimilar platforms, and routability • TCP provides reliability through checksum, flow control, and sequencing ...
Basics of TCP/IP, Switching, Routing and Firewalling. Why this article ?
... IP addresses, the NAT router needs a very large set of registered IP addresses. With static NAT, for each private IP host that needs Internet access, you need a publicly registered IP address. Overloading allows NAT to scale to support many clients with only a few public IP addresses. The key to und ...
... IP addresses, the NAT router needs a very large set of registered IP addresses. With static NAT, for each private IP host that needs Internet access, you need a publicly registered IP address. Overloading allows NAT to scale to support many clients with only a few public IP addresses. The key to und ...
No Slide Title
... The ARP reply is sent by the node whose IP address matches the target IP address in the ARP request. It fills its MAC address into the target Ethernet address field of the ARP request. It then swaps the two sender addresses (Ethernet and IP addresses) with the two target addresses, sets the op f ...
... The ARP reply is sent by the node whose IP address matches the target IP address in the ARP request. It fills its MAC address into the target Ethernet address field of the ARP request. It then swaps the two sender addresses (Ethernet and IP addresses) with the two target addresses, sets the op f ...
Ch07 ver 1
... The header of the IP datagram is made of two parts: a fixed part and a variable part. The fixed part is 20 bytes long and was discussed in the previous section. The variable part comprises the options, which can be a maximum of 40 bytes. Options, as the name implies, are not required for a datagram. ...
... The header of the IP datagram is made of two parts: a fixed part and a variable part. The fixed part is 20 bytes long and was discussed in the previous section. The variable part comprises the options, which can be a maximum of 40 bytes. Options, as the name implies, are not required for a datagram. ...
Exact Time Speaking System
... telephone exchanges [6], and it approaches the most severe conditions defined for CCS7 network [7]. For the largest allowed incoming traffic of 80 Erl we have ...
... telephone exchanges [6], and it approaches the most severe conditions defined for CCS7 network [7]. For the largest allowed incoming traffic of 80 Erl we have ...
Internet Protocol
... Transmission Control Protocol/Internetworking Protocol (TCP/IP) Internet Protocol next Generation (IPnG or IPv6) Extension of TCP over wireless ...
... Transmission Control Protocol/Internetworking Protocol (TCP/IP) Internet Protocol next Generation (IPnG or IPv6) Extension of TCP over wireless ...
CISSP – Chapter 7
... format of how data “Frames”* will be sent over the physical medium, so that two network cards of the same network type will actually be able to communicate. These frames are sent to the “physical” level to actually be turned into the electronic signals that are sent over a specific network. (layer 2 ...
... format of how data “Frames”* will be sent over the physical medium, so that two network cards of the same network type will actually be able to communicate. These frames are sent to the “physical” level to actually be turned into the electronic signals that are sent over a specific network. (layer 2 ...
Systems Programming 8 (Connection
... – Packets contain enough information so routers can decide how to get it to its final destination ...
... – Packets contain enough information so routers can decide how to get it to its final destination ...
Increasing Router Efficiency by Parallel Buffering and Packet Clustering Techniques
... The router buffer sizing is still an open issue. The traditional rule of thumb for internet routers states that the routers should be capable of buffering RTT*R data, Where RTT is a round-trip time for flows passing through the router, and R is the line rate. Many researchers claimed that the size o ...
... The router buffer sizing is still an open issue. The traditional rule of thumb for internet routers states that the routers should be capable of buffering RTT*R data, Where RTT is a round-trip time for flows passing through the router, and R is the line rate. Many researchers claimed that the size o ...
Skype Network - National Taiwan University
... HC was initialized with 7 IP:Port pairs Bootstrap SNs are connected to the Internet through 4 ISPs If the HC was flushed after the first login, SC was unable to connect to the Skype Network ...
... HC was initialized with 7 IP:Port pairs Bootstrap SNs are connected to the Internet through 4 ISPs If the HC was flushed after the first login, SC was unable to connect to the Skype Network ...