Managing Ad Hoc Networks of Smartphones
... kernel modifications and make the system more portable. Usually a routing daemon is implemented in the user space and a packet sniffing module is implemented in the kernel space. The approach requires the use of packet sniffing tools such as Netfilter and Snoop to intercept all the incoming and outg ...
... kernel modifications and make the system more portable. Usually a routing daemon is implemented in the user space and a packet sniffing module is implemented in the kernel space. The approach requires the use of packet sniffing tools such as Netfilter and Snoop to intercept all the incoming and outg ...
Metrics for Degree of Reordering in Packet Sequences
... Proceedings of the 27th Annual IEEE Conference on Local Computer Networks (LCN’02) 0742-1303/02 $17.00 © 2002 IEEE ...
... Proceedings of the 27th Annual IEEE Conference on Local Computer Networks (LCN’02) 0742-1303/02 $17.00 © 2002 IEEE ...
Fall 2008 - 2 Hours - School of Computer Science
... Transport services and protocols provide logical communication between hosts. A) True B) False ...
... Transport services and protocols provide logical communication between hosts. A) True B) False ...
Chapter 2 Packet Switched Networks
... application. It provides for either full-duplex or half-duplex operation, and establishes check pointing, adjournment, termination, and restart procedures. The OSI model made this layer responsible for “graceful close” of sessions, which is a property of TCP, and also for session check pointing and ...
... application. It provides for either full-duplex or half-duplex operation, and establishes check pointing, adjournment, termination, and restart procedures. The OSI model made this layer responsible for “graceful close” of sessions, which is a property of TCP, and also for session check pointing and ...
Slide 1
... Easier to make it reliable (note it is not necessarily more reliable). Guaranteed/reserved bandwidth. Identify flows by connection identifier rather than source/destination address (tag switching) ENTS689L: Packet Processing and Switching Networking Technologies ...
... Easier to make it reliable (note it is not necessarily more reliable). Guaranteed/reserved bandwidth. Identify flows by connection identifier rather than source/destination address (tag switching) ENTS689L: Packet Processing and Switching Networking Technologies ...
How the TCP/IP Protocol Works
... • Identification: copied into fragment, allows destination to know which fragments belong to which datagram • Fragment Offset (12 bits): specifies the offset in the original datagram of the data being carried in the fragment – Measured in units of 8 bytes starting at 0 ...
... • Identification: copied into fragment, allows destination to know which fragments belong to which datagram • Fragment Offset (12 bits): specifies the offset in the original datagram of the data being carried in the fragment – Measured in units of 8 bytes starting at 0 ...
Wire 1
... Captures (“sniffs”) messages send/received by your computer – Also stores A passive application (does not send data itself) – Contrast that to active measurements – Gets a copy of all data send/received ...
... Captures (“sniffs”) messages send/received by your computer – Also stores A passive application (does not send data itself) – Contrast that to active measurements – Gets a copy of all data send/received ...
ppt
... – Recognize that destination IP address is NOT on same network. – Look up destination IP address in a (forwarding) table to find a match, called the next hop router IP address. – Send packet encapsulated in a LAN frame to the LAN address corresponding to the IP address of the next-hop router. ...
... – Recognize that destination IP address is NOT on same network. – Look up destination IP address in a (forwarding) table to find a match, called the next hop router IP address. – Send packet encapsulated in a LAN frame to the LAN address corresponding to the IP address of the next-hop router. ...
ppt
... If one end of a connection (device or Ethernet switch) is set for autonegotiation, and fails to see autonegotiation at the other end, the former sets itself to the default, half-duplex. Auto-negotiation can sometimes fail, even when both sides are set to auto ...
... If one end of a connection (device or Ethernet switch) is set for autonegotiation, and fails to see autonegotiation at the other end, the former sets itself to the default, half-duplex. Auto-negotiation can sometimes fail, even when both sides are set to auto ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... typically battery limited. Power consumption can occur due to receiving the data, transmitting the data traffic, mobility etc. Power failure of mobile node not only affects the node itself but also its ability to forward packets on behalf of others and hence overall network lifetime. It might not be ...
... typically battery limited. Power consumption can occur due to receiving the data, transmitting the data traffic, mobility etc. Power failure of mobile node not only affects the node itself but also its ability to forward packets on behalf of others and hence overall network lifetime. It might not be ...
LGW2EChapter5Presentation3v2
... supports multipoint links and point to point links, and can implement error control and flow control mechanisms. PPP uses HDLC-like frames but does not use error control and flow control protocols. Instead PPP supports powerful link and network control PPP is character based and can be implemented o ...
... supports multipoint links and point to point links, and can implement error control and flow control mechanisms. PPP uses HDLC-like frames but does not use error control and flow control protocols. Instead PPP supports powerful link and network control PPP is character based and can be implemented o ...
Lecture 1
... • Start delimiter has last 2 bits as 11 • Length of data field does not include any padding to get minimum size – In Ethernet II, is the Type field, value > 1500 • represents which memory buffer on dst it stored in = protocol of data field (IP = hex 0800) ...
... • Start delimiter has last 2 bits as 11 • Length of data field does not include any padding to get minimum size – In Ethernet II, is the Type field, value > 1500 • represents which memory buffer on dst it stored in = protocol of data field (IP = hex 0800) ...
module_52
... packets can be lost, duplicated, damaged. – Not guaranteed order of delivery Packets can take different routes – Reliability is responsibility of next layer up (e.g. TCP) K. Salah ...
... packets can be lost, duplicated, damaged. – Not guaranteed order of delivery Packets can take different routes – Reliability is responsibility of next layer up (e.g. TCP) K. Salah ...
Experimental Review of IPSec Features to Enhance IP Security By
... This is necessary because each connection might be using different rules and different encryption algorithms. Remember IPSec supports multiple encryption algorithms, so we must keep track of which connection is using which encryption algorithm and hash types. There are two main modes which IPSec use ...
... This is necessary because each connection might be using different rules and different encryption algorithms. Remember IPSec supports multiple encryption algorithms, so we must keep track of which connection is using which encryption algorithm and hash types. There are two main modes which IPSec use ...
Chapter 5
... Link State Routing Each router must do the following: A. Discover its neighbors, learn their network address. B. Measure the delay or cost to each of its neighbors. C. Construct a packet telling all it has just learned. D. Send this packet to all other routers. E. Compute the shortest path to every ...
... Link State Routing Each router must do the following: A. Discover its neighbors, learn their network address. B. Measure the delay or cost to each of its neighbors. C. Construct a packet telling all it has just learned. D. Send this packet to all other routers. E. Compute the shortest path to every ...
IP Version 6
... the packet should go to the “nearest” router with the specified cluster prefix. • A sequence of cluster addresses in a routing option identifies the “providers” over which the packet should travel, while allowing the routing mechanism to decide the best path to those clusters. ...
... the packet should go to the “nearest” router with the specified cluster prefix. • A sequence of cluster addresses in a routing option identifies the “providers” over which the packet should travel, while allowing the routing mechanism to decide the best path to those clusters. ...
Smart Dust and TinyOS: Hardware and Software for Network
... • Epidemic propagation from one source or many – Continuous propagation effort by all nodes – Turn on/off radios at will – Reach nodes with intermittent connectivity Will find a path if it exists ...
... • Epidemic propagation from one source or many – Continuous propagation effort by all nodes – Turn on/off radios at will – Reach nodes with intermittent connectivity Will find a path if it exists ...
MobiNet: A Scalable Emulation Infrastructure for Ad Hoc and Wireless Networks
... (edge) machines required for large-scale evaluations, our architecture allows for Virtual Edge Nodes (VNs). VNs enable the multiplexing of multiple application instances on a single client machine, each with its own unique IP address. Since MobiNet clients use internal IP addresses (10.*), the numbe ...
... (edge) machines required for large-scale evaluations, our architecture allows for Virtual Edge Nodes (VNs). VNs enable the multiplexing of multiple application instances on a single client machine, each with its own unique IP address. Since MobiNet clients use internal IP addresses (10.*), the numbe ...
1 a
... Flow and error control? – To be provided on a per-channel basis. – Use DLL protocol such as HDLC. • Examples: SONET (Synchronous Optical Network) for optical fiber. • +’s: simple, fair. • -’s: inefficient. ...
... Flow and error control? – To be provided on a per-channel basis. – Use DLL protocol such as HDLC. • Examples: SONET (Synchronous Optical Network) for optical fiber. • +’s: simple, fair. • -’s: inefficient. ...