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
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Packet Tracer: Startup guide for absolute beginners. - Kanishkas howto? There are a few tuts available for Packet tracer on internet but I have made this guide keeping absolute beginners in mind and when I say absolute beginners, I mean really absolute beginners. In this guide we are going to create a star topology and see the difference between hub and a switch. To those people who don’t know what Packet Tracer is, it is a software developed by Cisco that can simulate networks and can be really helpful for people preparing for CCNA. See How to install Packet Tracer on Windows and Linux. So Let’s start our tutorial. Click on Hubs. Click on the hub we just placed in our workspace. Click on the Config tab just beside the Physical tab. Now we are going to place five computers around the hub to form Hub and Spoke topology. Click on any PC. Click on the Config tab beside Physical tab. Perform this action for other PC’s also and name them differently. Click on Server. Click on DHCP. Click on the interface FastEthernet to the left. Do the same for all connections.
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
Emoji An emoji, created by the Noto project Emojis (Japanese: , English: /ɪˈmoʊdʒi/; Japanese: [emodʑi]; singular emoji, plural emoji or emojis) are ideograms and smileys used in electronic messages and web pages. Emoji exist in various genres, including facial expressions, common objects, places and types of weather, and animals. They are much like emoticons, but emoji are actual pictures instead of typographics. Originally meaning pictograph, the word emoji comes from Japanese e (絵, "picture") + moji (文字, "character"); the resemblance to the English words emotion and emoticon is purely coincidental. The ISO 15924 script code for emoji is Zsye. Originating on Japanese mobile phones in 1997, emoji became increasingly popular worldwide in the 2010s after being added to several mobile operating systems. They are now considered to be a large part of popular culture in the west. In 2015, Oxford Dictionaries named the Face with Tears of Joy emoji the Word of the Year. Apple
Networking - Computer and Wireless Networking Basics - Home Networks Tutorials 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