Running a VSAN PoC – Customer reactions – vNinja.net I recently set up a VMware Virtual SAN 6.1 Proof-of-Concept for a customer, configuring a 3-node cluster based on the following setup: Hardware: HP ProLiant DL380 G92 x Intel Xeon E5-2680 @ 2.50Ghz w/12 Cores392 GB RAM1 x Intel DC 3700 800GB NVMe6 x Intel DC S3610 1.6TB SSDHP FlexFabric 556FLR-SFP+ 10GBe NICs Virtual SAN Setup: Since this was a simple PoC setup, the VSAN was configured with 1 disk group pr host with all 6 Intel DC S3610 drives used as the capacity layer, and the Intel DC P3700 NVMe cards set up as the cache. This gives a total of 21.61TB of usable space for VSAN across the cluster. vMotion and VSAN traffic were set up to run on a separate VLANs over 2 x 10GBe interfaces, connected to a Cisco backend. Customer reaction: After the customer had been running it in test for a couple of weeks, I got a single line email from them simply stating: “WOW! They were so impressed with the performance (Those NVMe cards are FAST!) Like this: Like Loading...
Welcome! - SmoothWall Types of Network Protocols What is a Network Protocol A protocol is a set of rules that govern the communications between computers on a network. These rules include guidelines that regulate the following characteristics of a network: access method, allowed physical topologies, types of cabling, and speed of data transfer. Types of Network Protocols The most common network protocols are: Ethernet Local Talk Token Ring FDDI ATM The followings are some commonly used network symbols to draw different kinds of network protocols. Ethernet The Ethernet protocol is by far the most widely used one. The Ethernet protocol allows for linear bus, star, or tree topologies. Fast Ethernet To allow for an increased speed of transmission, the Ethernet protocol has developed a new standard that supports 100 Mbps. Local Talk Local Talk is a network protocol that was developed by Apple Computer, Inc. for Macintosh computers. The Local Talk protocol allows for linear bus, star, or tree topologies using twisted pair cable. Token Ring
Software Development Emulator Product Overview This emulator is called Intel® Software Development Emulator or Intel® SDE, for short. The current version is 8.16 and was released Jan 30, 2018. Emulation support for the additional Intel® Advanced Vector Extensions 512 (Intel® AVX-512) instructions present on Intel® Xeon® Scalable processors and on some future Intel® Xeon® processors. Intel SDE continues to support the features from previous releases: Intel® SSE4, AES and PCLMULQDQ and the Intel® AVXIntel® AVX2, RTM, BMI1 and BMI2 instructions being introduced on the Intel Haswell microarchitecture.The ADOX/ADCX instructions being introduced on the Intel Broadwell microarchitecture.Support for Hardware Lock Elision introduced on the Intel Haswell microarchitecture.Support for Restricted Transactional Memory introduced on the Intel Haswell microarchitecture.Support for the Intel® Secure Hash Algorithm (Intel® SHA) extensions present on the Intel Goldmont microarchtiecture. Related useful materials: Quick links: Installation
CCNA Practice Questions Disclaimer: All Simulation Exams practice tests, study guides and/or material are neither sponsored by, nor endorsed by, nor affiliated with Cisco® Systems, Inc., Microsoft® Corporation, Inc., CompTIA® , Check Point Software Corp., Prosoft® or any other company. All trademarks are trademarks of their respective owners and duly acknowledged. MCSE ™, MCSE+I ™ are registered trademarks of Microsoft® Corporation and CCNA™, CCNP™, CCIE™ are registered trade marks of Cisco® Systems. A+™, Network+™, i-Net+™, Server+™ are registered trade marks of CompTIA®. CCSA™, CCSE™ are registered trademarks of CheckPoint® Software Corp.
Wireshark: The World's Most Popular Network Protocol Analyzer Communications protocol In telecommunications, a communications protocol is a system of digital rules for data exchange within or between computers. In computer science, when data is exchanged through a computer network, the rules system is called a network protocol. Communicating systems use well-defined formats for exchanging messages. Each message has an exact meaning intended to provoke a particular response of the receiver. Communicating systems In digital computing systems, the rules can be expressed by algorithms and data structures. Operating systems usually consist of a set of cooperating processes that manipulate shared data to communicate with each other. In contrast, because there is no common memory, communicating systems have to communicate with each other using a shared transmission medium. To implement a networking protocol, the protocol software modules are interfaced with a framework implemented on the machine's operating system. Basic requirements of protocols Protocol design
TinyURL.com - shorten that long URL into a tiny URL Cisco Nexus 7000 Series NX-OS Security Configuration Guide, Release 4.1 - Configuring Traffic Storm Control [Cisco Nexus 7000 Series Switches] Table Of Contents Configuring Traffic Storm Control Information About Traffic Storm Control Virtualization Support For Traffic Storm Control Licensing Requirements for Traffic Storm Control Guidelines and Limitations Configuring Traffic Storm Control Verifying Traffic Storm Control Configuration Displaying Traffic Storm Control Counters Traffic Storm Control Example Configuration Default Settings Additional References Related Documents Feature History for Traffic Storm Control Configuring Traffic Storm Control This chapter describes how to configure traffic storm control on the NX-OS device. The traffic storm control threshold numbers and the time interval allow the traffic storm control algorithm to work with different levels of granularity. A higher threshold allows more packets to pass through. Traffic storm control on the Cisco NX-OS device is implemented in the hardware.
EtherApe, a graphical network monitor Computer Networking Computer networks differ in the physical media used to transmit their signals, the communications protocols to organize network traffic, the network's size, topology and organizational intent. In most cases, communications protocols are layered on (i.e. work using) other more specific or more general communications protocols, except for the physical layer that directly deals with the physical media. Computer networks support applications such as access to the World Wide Web, shared use of application and storage servers, printers, and fax machines, and use of email and instant messaging applications. History A computer network, or simply a network, is a collection of computers and other hardware components interconnected by communication channels that allow sharing of resources and information. The following is a chronology of significant computer network developments: Properties Network packet Main article: Network packet Network topology Network links
Storm Control | Community String I remember when I first saw Storm Control in a config and thought “woah, whats that looks really confusing”, but really its pretty simple stuff. We use storm control to rate limit layer 2 traffic, this helps us prevent a subnet from being flooded with broadcasts, multicasts which would adversely affect the performance of the entire subnet. Storm Control can only be configured on physical interfaces and will not work on subinterfaces, or an LACP/PAGP interface. Configuration The first command shown limits the broadcast to 200pps, and if this limit is reached will not forward any more broadcasts until this is reduced to 150pps (config-if)#storm-control broadcast level pps 200 150 In the final example unicast is limited to 80% of the interface bandwidth but a second value is not specified, this causes all unicast to be forwarded up to 80% of the bandwidth and it does not force the traffic to wait until it drops below a second level (config-if)#storm-control unicast level 80
Svitsjeprinsipper Innholdet i denne siden og sidene som ligger under alle pekerene, skal du ha kjennskap til. Både lyd og bilde kan digitaliseres. Derfor er elektronisk kommunikasjon basert på overføring av digitale signaler. En kilde sender ut en strøm av informasjon. Mange kilder med info-strøm skal behandles samtidig og overføres til mottaker så raskt som mulig. For å kunne skape en effektiv info-strøm, må info fra hver kilde deles i enheter. Figuren nedenfor viser i prinsippet hvordan enheter fra forskjellige kilder overføres på samme linje. Multipleksing er ikke en enkel metode eller prinsipp, men en samlebetegnelse på metoder og prinsipper som gjør det mulig å overføre mange signaler (telefonsamtaler, datafiler, bilder, video, ...) samtidig på en felles overføringskanal. Det skilles mellom to fundamentalt forskjellige priunsipper for multipleksing: frekvensdelt multipleksing (FDM) og tidsdelt multipleksing (TDM). Det er mulig å kombinere tids- og frekvensdelt multipleksing .