here - Redbrick DCU
... • The Presentation layer translates data from the Application layer into an intermediary format. This layer also manages security issues by providing services such as data encryption, and compresses data so that fewer bits need to be transferred on the network. • The Session layer allows two applica ...
... • The Presentation layer translates data from the Application layer into an intermediary format. This layer also manages security issues by providing services such as data encryption, and compresses data so that fewer bits need to be transferred on the network. • The Session layer allows two applica ...
document
... AIMD - Does not meet efficiency objective UDT uses modified AIMD algorithm to use 90% of the available Bandwidth ...
... AIMD - Does not meet efficiency objective UDT uses modified AIMD algorithm to use 90% of the available Bandwidth ...
Q and A slides
... On hosts and most routers they probably don’t change very often, if ever. They are based on the IP addresses assigned to interfaces, and a default route, which usually comes via DHCP or a routing ...
... On hosts and most routers they probably don’t change very often, if ever. They are based on the IP addresses assigned to interfaces, and a default route, which usually comes via DHCP or a routing ...
ppt
... • The size of the set is the window size • Assume window size is n • Let A be the last ack’d packet of sender without gap; ...
... • The size of the set is the window size • Assume window size is n • Let A be the last ack’d packet of sender without gap; ...
ECE537-Class 9_2009 - Electrical & Computer Engineering
... determines how many bots are sent during each round – If weighted 5, then 5 bits are sent per round ...
... determines how many bots are sent during each round – If weighted 5, then 5 bits are sent per round ...
Lecture3P1 - UniMAP Portal
... The transmitting station A misinterprets duplicate ACKs Incorrectly assumes second ACK acknowledges Frame 1 Question: How is the receiver to know second ACK is for frame 0? Answer: Add frame sequence number in ACK header ...
... The transmitting station A misinterprets duplicate ACKs Incorrectly assumes second ACK acknowledges Frame 1 Question: How is the receiver to know second ACK is for frame 0? Answer: Add frame sequence number in ACK header ...
Final Presentation - High Speed Digital Systems Laboratory
... • Test resistance and durability of networks connecting/serving devices as routers, servers or switches – Are some sort of packets get lost in particular device ? – What is the maximum rate of packets per second that a specific router can route ? – What is maximum open connections a target server ca ...
... • Test resistance and durability of networks connecting/serving devices as routers, servers or switches – Are some sort of packets get lost in particular device ? – What is the maximum rate of packets per second that a specific router can route ? – What is maximum open connections a target server ca ...
A loss-resistant method of seismic data transmission over wireless data networks
... project familiar to the author, employed an IEEE 802.11b wireless network with TCP protocol to transmit a continuous seismic data stream from a remote acquisition system to a data collection and processing system. The TCP/IP protocol was poorly suited for handling the (inevitable) wireless packet lo ...
... project familiar to the author, employed an IEEE 802.11b wireless network with TCP protocol to transmit a continuous seismic data stream from a remote acquisition system to a data collection and processing system. The TCP/IP protocol was poorly suited for handling the (inevitable) wireless packet lo ...
Becoming a Networking Expert
... • TCP guarantees delivery of data and also guarantees that packets will be delivered in the same order in which they were sent. ...
... • TCP guarantees delivery of data and also guarantees that packets will be delivered in the same order in which they were sent. ...
ppt
... • Type: indicates the higher layer protocol – Usually IP – But also Novell IPX, AppleTalk, … ...
... • Type: indicates the higher layer protocol – Usually IP – But also Novell IPX, AppleTalk, … ...
IT1402 - Mobile Computing
... 2 MARK QUESTIONS: 1.What is a socket pair? A TCP connection is identified by the tuple (Source IP address, source port, destination IP address, Destination port) known as socket pair. A socket consists of address and port. 2. Summarize the goal of mobile IP. //(AU NOV-DEC 2007) ...
... 2 MARK QUESTIONS: 1.What is a socket pair? A TCP connection is identified by the tuple (Source IP address, source port, destination IP address, Destination port) known as socket pair. A socket consists of address and port. 2. Summarize the goal of mobile IP. //(AU NOV-DEC 2007) ...
EECS 700: Network Security
... the TCP header is fragmented and the filter rule is based on TCP, it may fail – Firewall examine the SYN bit • Tiny fragment attack: Firewall only check the first fragment. The minimum fragment is 68 bytes (ICMP requirement), but the SYN bit maybe fall into the 2nd fragment with IP option. • Overlap ...
... the TCP header is fragmented and the filter rule is based on TCP, it may fail – Firewall examine the SYN bit • Tiny fragment attack: Firewall only check the first fragment. The minimum fragment is 68 bytes (ICMP requirement), but the SYN bit maybe fall into the 2nd fragment with IP option. • Overlap ...
Slide 1
... of Energy, Office of Defense Programs. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed-Martin Company, for the United States Department of ...
... of Energy, Office of Defense Programs. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed-Martin Company, for the United States Department of ...
scratch
... Feedback: Packet loss retransmit packets at IP layer transport layer slowing down the sending rate for that flow CN5E by Tanenbaum & Wetherall, © Pearson Education-Prentice Hall and D. Wetherall, 2011 ...
... Feedback: Packet loss retransmit packets at IP layer transport layer slowing down the sending rate for that flow CN5E by Tanenbaum & Wetherall, © Pearson Education-Prentice Hall and D. Wetherall, 2011 ...
LAB02-Network_Connectivity
... Posts active connections on TCP, but the number of the port and the addresses are in numerical format and no attempt is made to determine the names. ...
... Posts active connections on TCP, but the number of the port and the addresses are in numerical format and no attempt is made to determine the names. ...
Module 4: Processes
... Bits transmitted at a particular bandwidth can be regarded as having some width: (a) bits transmitted at 1Mbps (each bit 1 μs wide); (b) bits transmitted at 2Mbps (each bit 0.5 μs wide). CN_1.46 ...
... Bits transmitted at a particular bandwidth can be regarded as having some width: (a) bits transmitted at 1Mbps (each bit 1 μs wide); (b) bits transmitted at 2Mbps (each bit 0.5 μs wide). CN_1.46 ...
UNDERLAYS
and
MIDDLEBOXES
READING:
SECTION
8. COS
461:
Computer
Networks
Spring
2010
(MW
3:00‐4:20
in
COS
105)
... – Firewall rule based on IP addresses of dorms – … and the server IP address and port number – Problem: users may log in to another machine • E.g., connect from the dorms to another host • … and then onward to the blocked server ...
... – Firewall rule based on IP addresses of dorms – … and the server IP address and port number – Problem: users may log in to another machine • E.g., connect from the dorms to another host • … and then onward to the blocked server ...
IDS
... – Monitor shell commands and system calls executed by user applications and system programs • Pay a price in performance if every system call is filtered ...
... – Monitor shell commands and system calls executed by user applications and system programs • Pay a price in performance if every system call is filtered ...
Diapositive 1
... Mobile Ad Hoc networks: DTT • Algorithms which do not use redundancy cannot achieve an average delay of less than O(N). • No algorithm (with or without redundancy) which restricts packets to 2-hop paths can provide an average delay better than O N . ...
... Mobile Ad Hoc networks: DTT • Algorithms which do not use redundancy cannot achieve an average delay of less than O(N). • No algorithm (with or without redundancy) which restricts packets to 2-hop paths can provide an average delay better than O N . ...
AW36294299
... targeted port, the victim system would send out ICMP packet indicating the destination port is unreachable. As with smurfing, UDP flooding uses spoofed IP address when sending the attacking packet. By doing this, the return packets are sent to another system with spoofed address and not sent back to ...
... targeted port, the victim system would send out ICMP packet indicating the destination port is unreachable. As with smurfing, UDP flooding uses spoofed IP address when sending the attacking packet. By doing this, the return packets are sent to another system with spoofed address and not sent back to ...