Internetworking - Northwestern University
... Note: clients and servers are processes running on hosts (can be the same or different hosts). ...
... Note: clients and servers are processes running on hosts (can be the same or different hosts). ...
The Token Based Switch: per-packet access authorisation to optical shortcuts
... feeds the token builder module with packet handles. The token builder retrieves the first 64 bytes of the current packet from a shared packet buffer memory (PBuf) into local registers and then applies a custom mask over these bytes in order to hide unused fields like IP header length, 3.2 Software f ...
... feeds the token builder module with packet handles. The token builder retrieves the first 64 bytes of the current packet from a shared packet buffer memory (PBuf) into local registers and then applies a custom mask over these bytes in order to hide unused fields like IP header length, 3.2 Software f ...
CSC 311 - School of Computing Homepage
... need a technique to select the best among these many possibilities. In the highway example, what do you do if a bridge is out? Find an alternate route. Networks are frequently faced with the same problem when one of the nodes in the network fails or becomes congested. ...
... need a technique to select the best among these many possibilities. In the highway example, what do you do if a bridge is out? Find an alternate route. Networks are frequently faced with the same problem when one of the nodes in the network fails or becomes congested. ...
Binary Octet to Decimal Format Conversion
... said to have a dynamic IP address. The network administrator manually assigns static IP addresses, whereas the Dynamic Host Configuration Protocol (DHCP) assigns dynamic IP addresses. An operating system can also assign itself a dynamic address when a DHCP server and the network administrator are un ...
... said to have a dynamic IP address. The network administrator manually assigns static IP addresses, whereas the Dynamic Host Configuration Protocol (DHCP) assigns dynamic IP addresses. An operating system can also assign itself a dynamic address when a DHCP server and the network administrator are un ...
Routing
... A receives periodic update from C with 2-hop path to G A sets distance to G to 3 and sends update to F F decides it can reach G in 4 hops via A ...
... A receives periodic update from C with 2-hop path to G A sets distance to G to 3 and sends update to F F decides it can reach G in 4 hops via A ...
An Introduction to TCP/IP - Oakton Community College
... packet, which the other end acknowledges with an ACK. Therefore, a typical tear-down requires a pair of FIN and ACK segments from each TCP endpoint. A connection can be "half-open", in which case one side has terminated its end, but the other has not. The side that has terminated can no longer send ...
... packet, which the other end acknowledges with an ACK. Therefore, a typical tear-down requires a pair of FIN and ACK segments from each TCP endpoint. A connection can be "half-open", in which case one side has terminated its end, but the other has not. The side that has terminated can no longer send ...
Historical Overview
... • Client/server applications – Two computers and two applications involved – Communication occurs three levels • Hardware, operating system, application • Dependent on one computer addressing the other ...
... • Client/server applications – Two computers and two applications involved – Communication occurs three levels • Hardware, operating system, application • Dependent on one computer addressing the other ...
Chapter 1 - Lecturer
... Dividing Networks from Networks • There is a direct relationship, bit for bit, between the IP Address and it's associated subnet mask. • Any subnet mask bit that is a 1 means that the associated address bit belongs to the network number. • Any subnet mask bit that is a 0 means that the associated a ...
... Dividing Networks from Networks • There is a direct relationship, bit for bit, between the IP Address and it's associated subnet mask. • Any subnet mask bit that is a 1 means that the associated address bit belongs to the network number. • Any subnet mask bit that is a 0 means that the associated a ...
12-Exterior Routing Protocol
... —Each such router forwards if required —Use reverse path routing to determine source • Assume datagram from X enters AS at point advertising shortest route back to X • Use this to determine path of datagram through MOSPF AS ...
... —Each such router forwards if required —Use reverse path routing to determine source • Assume datagram from X enters AS at point advertising shortest route back to X • Use this to determine path of datagram through MOSPF AS ...
Flow control and TCP/IP
... But as “connectivity” grew in importance, one needed the ability not only to connect computers into a network, but also to connect networks into an internet. The networks can differ immensely (heterogeneity) at the lowest level, but there must be some overlying logic (software/protocol) providing th ...
... But as “connectivity” grew in importance, one needed the ability not only to connect computers into a network, but also to connect networks into an internet. The networks can differ immensely (heterogeneity) at the lowest level, but there must be some overlying logic (software/protocol) providing th ...
Windows Firewall
... Monitor state of active connection Record session information such as IP, Port no. Determines whether packets are allowed or not, by comparing state of that connection. Much secure than static packet filter e.g. only replies to users data requests are let back in. ...
... Monitor state of active connection Record session information such as IP, Port no. Determines whether packets are allowed or not, by comparing state of that connection. Much secure than static packet filter e.g. only replies to users data requests are let back in. ...
chapter_5_v6.011
... errors caused by signal attenuation, noise. receiver detects presence of errors: • signals sender for retransmission or drops frame ...
... errors caused by signal attenuation, noise. receiver detects presence of errors: • signals sender for retransmission or drops frame ...
Remote Deployment of Wireless Sensor Networks
... node for a randomly distributed network. • Need to gracefully transition when the head node’s power begins to wane. • What to do if head node drops off the map? • What to do if next in line is not available? ...
... node for a randomly distributed network. • Need to gracefully transition when the head node’s power begins to wane. • What to do if head node drops off the map? • What to do if next in line is not available? ...
Document
... route used to reach the target. • Available on most but not all systems that have an IP stack. • Relies on the fact that routers should always decrement the TTL of a packet as it passes. • Generally uses ICMP packets on Windows and UDP packets on UNIX systems. However any IP protocol could be used i ...
... route used to reach the target. • Available on most but not all systems that have an IP stack. • Relies on the fact that routers should always decrement the TTL of a packet as it passes. • Generally uses ICMP packets on Windows and UDP packets on UNIX systems. However any IP protocol could be used i ...
Routing Information Protocol 2 (RIP2)
... SOLUTION: Triggered Updates/Split Horizon for Preventing Two-hop Loops Split Horizon: "Split horizon" is a scheme for avoiding problems caused by including routes in updates sent to the router from which they were learned. – Simple - The information about destination routed on the link is omitted – ...
... SOLUTION: Triggered Updates/Split Horizon for Preventing Two-hop Loops Split Horizon: "Split horizon" is a scheme for avoiding problems caused by including routes in updates sent to the router from which they were learned. – Simple - The information about destination routed on the link is omitted – ...
Chapter 11 Interior Routing Protocols
... [Get Next Node] Find neighboring node not in Incorporate node into ...
... [Get Next Node] Find neighboring node not in Incorporate node into ...
Computer Networks and Internets
... The Point of Routing Exchange Each router runs routing software that learns about destinations other routers can reach, and informs other routers about destinations that it can reach. The routing software uses incoming information to update the local routing table ...
... The Point of Routing Exchange Each router runs routing software that learns about destinations other routers can reach, and informs other routers about destinations that it can reach. The routing software uses incoming information to update the local routing table ...
How to Simplify Network Discovery using SolarWinds® Engineer`s
... discovery mechanism. By discovering all the devices in a network, as well as the resources connected to them, network administrators can gather useful information like status of each device, machine type, location, and more. It gives them a glimpse of what devices they will monitor and the resources ...
... discovery mechanism. By discovering all the devices in a network, as well as the resources connected to them, network administrators can gather useful information like status of each device, machine type, location, and more. It gives them a glimpse of what devices they will monitor and the resources ...
Network Connectivity_PPT_ch09
... • A computer becomes a server when software is installed on it that provides a network service to client computers • The term “server” is also used in three contexts: – Server operating system – OS installed on a computer designed to share network resources and provide other network services – Serve ...
... • A computer becomes a server when software is installed on it that provides a network service to client computers • The term “server” is also used in three contexts: – Server operating system – OS installed on a computer designed to share network resources and provide other network services – Serve ...
2.1 Chapter 2 Network Models
... processes at this time with port addresses a, b, and c. The receiving computer is running two processes at this time with port addresses j and k. Process a in the sending computer needs to communicate with process j in the receiving computer. Note that although physical addresses change from hop to ...
... processes at this time with port addresses a, b, and c. The receiving computer is running two processes at this time with port addresses j and k. Process a in the sending computer needs to communicate with process j in the receiving computer. Note that although physical addresses change from hop to ...
Guide to Firewalls and Network Security with Intrusion Detection and
... Post Office Protocol version 3 (POP3) Internet E-mail Access Protocol version 4 (IMAP4) ...
... Post Office Protocol version 3 (POP3) Internet E-mail Access Protocol version 4 (IMAP4) ...
Chapter5b
... link-layer device: takes an active role store and forward Ethernet frames examine incoming frame’s MAC address, selectively forward frame to one-or-more outgoing links when frame is to be forwarded on segment, uses CSMA/CD to access segment transparent hosts are unaware of presence of switches ...
... link-layer device: takes an active role store and forward Ethernet frames examine incoming frame’s MAC address, selectively forward frame to one-or-more outgoing links when frame is to be forwarded on segment, uses CSMA/CD to access segment transparent hosts are unaware of presence of switches ...
The Data-Link Layer: Access Networks and Lans (Abridged Version)
... errors caused by signal attenuation, noise. receiver detects presence of errors: • signals sender for retransmission or drops frame ...
... errors caused by signal attenuation, noise. receiver detects presence of errors: • signals sender for retransmission or drops frame ...
ERouting Final Exam
... Refer to the exhibit. All routers are running the same routing protocol. Based on the exhibit and its displayed commands, which statement is true? Routers B, C, and D have no access to the Internet. The link to the ISP will be excluded from the routing protocol process. A default route must be confi ...
... Refer to the exhibit. All routers are running the same routing protocol. Based on the exhibit and its displayed commands, which statement is true? Routers B, C, and D have no access to the Internet. The link to the ISP will be excluded from the routing protocol process. A default route must be confi ...