Parallel and Cluster Computing with R
... clusterEvalQ(cluster, db_user) ## Error in checkForRemoteErrors(lapply(cl, recvResult)) : ## 2 nodes produced errors; first error: object 'db_user' not found clusterExport(cluster, c("db_user")) clusterEvalQ(cluster, db_user) ...
... clusterEvalQ(cluster, db_user) ## Error in checkForRemoteErrors(lapply(cl, recvResult)) : ## 2 nodes produced errors; first error: object 'db_user' not found clusterExport(cluster, c("db_user")) clusterEvalQ(cluster, db_user) ...
SDN basics and OpenFlow
... flow table. – If a packet matches an entry in the flow table, perform the actions (e.g. forward to port 10) according to the flow table. – If a packet does not match any entry in the flow table. Send it to the Openflow controller • The controller will figure out what to do with such packet • The con ...
... flow table. – If a packet matches an entry in the flow table, perform the actions (e.g. forward to port 10) according to the flow table. – If a packet does not match any entry in the flow table. Send it to the Openflow controller • The controller will figure out what to do with such packet • The con ...
XPort-485 Technical Application Note
... If you want to set a static IP address, you have two options: Device Installer, a free utility provided with the XPort-485 is the easiest method. Address Resolution Protocol (ARP) is recommended for those familiar with using it. Note: On a standard XPort (non-RS-485 version), there is also an op ...
... If you want to set a static IP address, you have two options: Device Installer, a free utility provided with the XPort-485 is the easiest method. Address Resolution Protocol (ARP) is recommended for those familiar with using it. Note: On a standard XPort (non-RS-485 version), there is also an op ...
FastpathUD
... at redundant links that are automatically discarded by receiving ports. Redundant links represent a low percentage of total network links. • Reduction of ARP path broadcast to hosts requires (as other proposals), an ARP Proxy function or centralized or distributed (DHT) host resolution. – ARP proxyi ...
... at redundant links that are automatically discarded by receiving ports. Redundant links represent a low percentage of total network links. • Reduction of ARP path broadcast to hosts requires (as other proposals), an ARP Proxy function or centralized or distributed (DHT) host resolution. – ARP proxyi ...
EX3300 Ethernet Switch
... Simplified Management and Operations When deployed in a Virtual Chassis configuration, the EX3300 dramatically simplifies network management. Up to 10 interconnected EX3300 switches can be managed as a single device utilizing a single Junos OS image file and a single configuration file, reducing the ...
... Simplified Management and Operations When deployed in a Virtual Chassis configuration, the EX3300 dramatically simplifies network management. Up to 10 interconnected EX3300 switches can be managed as a single device utilizing a single Junos OS image file and a single configuration file, reducing the ...
Manual - Maxon Australia
... All data and information contained in or disclosed by this document are confidential and proprietary information of Maxon Australia, and all rights therein are expressly reserved. By accepting this material, the recipient agrees that this material and the information contained therein are held in co ...
... All data and information contained in or disclosed by this document are confidential and proprietary information of Maxon Australia, and all rights therein are expressly reserved. By accepting this material, the recipient agrees that this material and the information contained therein are held in co ...
Eng. Ashraf presentation for the academy exam
... As with a computer, a router or switch or other Cisco devices cannot function without an operating system “IOS:. Cisco “IOS” Internetwork Operating System is stored in the flash memory but can be over written”. The IOS is copied into RAM to run from there when the device is powered on . This functio ...
... As with a computer, a router or switch or other Cisco devices cannot function without an operating system “IOS:. Cisco “IOS” Internetwork Operating System is stored in the flash memory but can be over written”. The IOS is copied into RAM to run from there when the device is powered on . This functio ...
WAVE Interface Modules
... WAVE appliances can be installed physically between two network devices (such as the branch office router and branch office LAN switch) by connecting the WAVE inline network adapter ports to the network devices using the proper cables. If you are connecting a WAVE inline appliance between two device ...
... WAVE appliances can be installed physically between two network devices (such as the branch office router and branch office LAN switch) by connecting the WAVE inline network adapter ports to the network devices using the proper cables. If you are connecting a WAVE inline appliance between two device ...
Lecture 3: Data Link Layer Security
... • Set up a rogue DHCP server serving clients with false details – E.g. giving them its own IP as default router – Result in all the traffic passing through the attacker’s computer ...
... • Set up a rogue DHCP server serving clients with false details – E.g. giving them its own IP as default router – Result in all the traffic passing through the attacker’s computer ...
DatagramPacket packet
... Unlike TCP streams, which establish a connection, UDP causes fewer overheads. Real-time applications that demand up-tothe-second or better performance may be candidates for UDP, as there are fewer delays due to error checking and flow control of TCP. ...
... Unlike TCP streams, which establish a connection, UDP causes fewer overheads. Real-time applications that demand up-tothe-second or better performance may be candidates for UDP, as there are fewer delays due to error checking and flow control of TCP. ...
Switching Concepts and LAN Design
... The full-duplex Ethernet switch takes advantage of the two pairs of wires in the cable by creating a direct connection between the transmit (TX) at one end of the circuit and the receive (RX) at the other end. Ethernet usually can only use 50%-60% of the available 10 Mbps of bandwidth because of col ...
... The full-duplex Ethernet switch takes advantage of the two pairs of wires in the cable by creating a direct connection between the transmit (TX) at one end of the circuit and the receive (RX) at the other end. Ethernet usually can only use 50%-60% of the available 10 Mbps of bandwidth because of col ...
NFX250 Network Services Platform
... routing services, as well as a Juniper Cloud-Enabled Branch solution. This automated, software-driven solution dynamically provisions new services on demand, resulting in a near instantaneous service delivery experience. Subsequent service updates and policy changes can be consistently and dynamical ...
... routing services, as well as a Juniper Cloud-Enabled Branch solution. This automated, software-driven solution dynamically provisions new services on demand, resulting in a near instantaneous service delivery experience. Subsequent service updates and policy changes can be consistently and dynamical ...
VoIP+NAT
... 10.1.1.1:4540;received=68.44.20.1;rport=9988; B (68.44.10.3:5060) C (68.44.20.1:9988) A ...
... 10.1.1.1:4540;received=68.44.20.1;rport=9988; B (68.44.10.3:5060) C (68.44.20.1:9988) A ...
Socket Programming
... • sa_family specifies the address type. • sa_data specifies the address value. CPE 401/601 Lecture 10 : Socket Programming ...
... • sa_family specifies the address type. • sa_data specifies the address value. CPE 401/601 Lecture 10 : Socket Programming ...
LANdesign
... process? Can all ports work simultaneously at maximum speed? Link aggregation (EtherChannel) – up to 8 ports bound together, acting as one, with combined bandwidth – can it do this? 25-May-17 ...
... process? Can all ports work simultaneously at maximum speed? Link aggregation (EtherChannel) – up to 8 ports bound together, acting as one, with combined bandwidth – can it do this? 25-May-17 ...
Sockets
... connection? Well, in that case, select() returns with that socket descriptor set as "ready to read". When you actually do recv() from it, recv() will return 0. That's how you know the client has closed the connection. One more note of interest about select(): if you have a socket that is listen()ing ...
... connection? Well, in that case, select() returns with that socket descriptor set as "ready to read". When you actually do recv() from it, recv() will return 0. That's how you know the client has closed the connection. One more note of interest about select(): if you have a socket that is listen()ing ...
NeoGate TE100 User Manual
... 5.3 system Preferences 5.3.1 Password Settings We can change the password of account ‘admin’ in this page, but you need to input the old password before input a new one. ...
... 5.3 system Preferences 5.3.1 Password Settings We can change the password of account ‘admin’ in this page, but you need to input the old password before input a new one. ...
a destination IP address
... be exchanged within the LAN however data cannot be routed to other networks. Also, the broadcast domain of one LAN is not isolated from another LAN’s broadcast domain. The solution for breaking up the broadcast domains and to provide network routing is to incorporate routing hardware into the networ ...
... be exchanged within the LAN however data cannot be routed to other networks. Also, the broadcast domain of one LAN is not isolated from another LAN’s broadcast domain. The solution for breaking up the broadcast domains and to provide network routing is to incorporate routing hardware into the networ ...
Troubleshooting Ethernet and Fragmentation Issues
... performance, intermittent connectivity problems and/or a complete loss of connectivity. A duplex mismatch occasionally happens when one or both ports on a link are reset and auto-negotiation doesn’t function properly. Another cause could be changing the duplex on either end of a link but forgetting ...
... performance, intermittent connectivity problems and/or a complete loss of connectivity. A duplex mismatch occasionally happens when one or both ports on a link are reset and auto-negotiation doesn’t function properly. Another cause could be changing the duplex on either end of a link but forgetting ...
Setup Wizard
... Caution 1: If the router fails to power up, or it malfunctions, first verify that the power supply is connected correctly. Then power it on again. If the problem persists, contact our technical support engineers. Caution 2: Before servicing or disassembling this equipment always disconnect all power ...
... Caution 1: If the router fails to power up, or it malfunctions, first verify that the power supply is connected correctly. Then power it on again. If the problem persists, contact our technical support engineers. Caution 2: Before servicing or disassembling this equipment always disconnect all power ...
More Info »
... populate the CTOG-250 with the routes required to manage the remote CDM-840s via their management IP addresses. The Return Link Routed Management Traffic is usually handled by entering a default route (0.0.0.0/0 “toWAN”) in the CDM-840’s routing table. As in “router” working mode, it is required tha ...
... populate the CTOG-250 with the routes required to manage the remote CDM-840s via their management IP addresses. The Return Link Routed Management Traffic is usually handled by entering a default route (0.0.0.0/0 “toWAN”) in the CDM-840’s routing table. As in “router” working mode, it is required tha ...
Quality is Advantage
... After completing this course, you will be able to: Describe the process for replacing or upgrading personal computer components and apply preventive maintenance and troubleshooting techniques Describe the processes used to install, upgrade, configure, and optimize a computer operating system, and ap ...
... After completing this course, you will be able to: Describe the process for replacing or upgrading personal computer components and apply preventive maintenance and troubleshooting techniques Describe the processes used to install, upgrade, configure, and optimize a computer operating system, and ap ...
Networked Applications (sockets)
... • Server creates a socket and binds address/port – Server creates a socket, just like the client does – Server associates the socket with the port number (and hopefully no other process is already using it!) ...
... • Server creates a socket and binds address/port – Server creates a socket, just like the client does – Server associates the socket with the port number (and hopefully no other process is already using it!) ...
Parallel port
A parallel port is a type of interface found on computers (personal and otherwise) for connecting peripherals. In computing, a parallel port is a parallel communication physical interface. It is also known as a printer port or Centronics port. It was an industry de facto standard for many years, and was finally standardized as IEEE 1284 in the late 1990s, which defined the Enhanced Parallel Port (EPP) and Extended Capability Port (ECP) bi-directional versions. Today, the parallel port interface is seeing decreasing use because of the rise of Universal Serial Bus (USB) devices, along with network printing using Ethernet.The parallel port interface was originally known as the Parallel Printer Adapter on IBM PC-compatible computers. It was primarily designed to operate a line printer that used IBM's 8-bit extended ASCII character set to print text, but could also be used to adapt other peripherals. Graphical printers, along with a host of other devices, have been designed to communicate with the system.