catalyst 2960 x

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Frequently asked questions about switches

A. About stacking technology: How does the 1.Catalyst 3500XL/2900XL stack be implemented? A. Special tiered cabling is required, 1 m long or 50 cm long (cab-gs-1m or cab-gs-50cm) and a dedicated gigabit stacked card Gigastack GBIC (WS-X3500-XL) (which already contains cab-gs-50cm stacked cables). B. There are 2 stacking methods available: Daisy Chain (providing 1G of bandwidth) or point-to-point method (2G bandwidth available). C. 2 ways to do back

Three key elements for the future development of Ethernet switches

the storage network mass data transmission channel, a large number of mega-bandwidth convergence of the metropolitan Area Network, large financial institutions of data concentration, enterprise core business, ERP, CRM and other complex application extensions. Today gigabit as the backbone, hundred trillion for access to the mainstream structure, will gradually to the million trillion backbone, gigabit access to the structure of the transition. The new generation of Cisco Switch products

Latest for Vista RTM driver _ Common Tools

Special Note: Some of the following drivers are specifically designed for Windows Vista RTM, some of which were released prior to the introduction of Windows Vista RTM, and are not guaranteed to be available in Vista RTM. We will indicate whether or not to support RTM in each of the following drives, please read it carefully. In addition, after the Vista RTM release, more and more manufacturers will be released for Vista RTM, the official version of the driver, please pay close attention to our

Spark SQL Overview

Tags: query rdd make function object-oriented writing member map compilationPreface: Some logic with spark core to write, it will be more trouble, if the use of SQL to express, it is too convenientFirst, what is Spark SQLis a Spark component that specifically handles structured data Spark SQL provides two ways to manipulate data: SQL query Dataframes/datasets API Spark SQL = Schema + RDDSecond, Spark SQL introduced the main motiveWrite and run spark programs faster Write less code, read less dat

How to effectively use vswitches to prevent the invasion of worms

system, in addition, even when a worm occurs, we need to take measures to minimize its impact and protect our network infrastructure to ensure stable network operation .. This article describes a unique solution on a Cisco Catalyst Switch to prevent the harm of worms in a very economical, effective, and scalable way. First, we need to understand the abnormal behavior of the worm and have the means to detect its abnormal behavior as soon as possible.

Introduction to hardware in the Network

are suitable for the access layer or small and medium size convergence layer. Mainstream third-tier switches on the market include Cisco Catalyst 2948G-L3, Extreme Summit24, AlliedTelesyn Rapier24, and so on. These three-tier switch products have their own characteristics, covers most of the application features of layer-3 switches. Of course, when selecting a layer-3 switch, you can determine and select the products of the above products or other ma

Implement iSCSI on AIX

optimization part, which is optional, but we recommend that you do so. Prerequisites The process for configuring iSCSI on AIX assumes that the following conditions are met: AIX version 5.2 or later is installed on the server or host node. Cabling of all networks and optical fibers has been completed. Most importantly, the network configuration has been completed and tested, including the ability to perform Ping tests from the AIX node to the iSCSI IP address. Basic configurations include:

Switch Technology Introduction: Network Switch configuration skills

3. Basic vswitch Configuration After entering the configuration page, if this is the first configuration, You need to configure the IP address first, which is mainly for remote configuration later. The IP address configuration method is as follows: Enter "I" in "Enter Selection:" On the configuration page that appears, and click Enter. The following configuration information is displayed: The IP Configuration Menu appears. Catalyst 1900-IP Configurati

Disable dedicated display/switch graphics card under ubuntulinux-install atidriver

Ubuntulinux off the dedicated display/switch graphics card-installation of atidriver cause: linux CPU temperature is very high, fan conversion platform: ubuntu12.1032/64bit driver: unzip s12.11-atidriver 1. download ati compressed package amd-driver-installer-catalyst-12.11-beta-x86.x86 _... in ubuntu linux, disable the dedicated display/switch the graphics card-the reason for installing the atidriver: the CPU temperature in linux is very high, and th

Installation of the ATI graphics driver under Fedora 18

I installed my Fedora 18 on my laptop, AMD Radeon 6600 M and 6700 M Series. This is the result detected after the driver is installed (I always thought it was 76 Series, because the label is so pasted, I did not expect it to be pitted.) Let's Talk About the installation steps in detail. If the driver has been installed using the run file provided by AMD, uninstall and fix the Mesa Library: Su-c 'yum reinstall mesa-libGL' Setp 1: Update Kernel, Install kernel-devel [Root @ fedora ~] $ Yum update

Ubuntu14.04 installs AMD graphics driver dual-screen display complete solution

There are many ways to do it online, but there are few solutions for AMD graphics, so I would like to write a tutorial on AMD graphics today.First of all, go to this URL to download some things: http://support.amd.com/zh-cn/download/desktop?os=Ubuntu+x86+64, explained that this URL is for the Ubuntu64 bit system, 32-bit users please select the 32-bit file download. Which files are under?There are three of them:(1) AMD catalyst™14.12 proprietary Ubuntu

How to configure different VLANs to communicate with each other on a three-tier exchange

This experiment needs: By planning VLAN 100 and VLAN 200 in Cisco Catalyst 3550来, and configuring DHCP to have the VLAN100 personnel computer obtain an IP address for 192.168.0.0/ 24, let VLAN200 market computer to obtain IP address for 172.16.0.0/24. Because the marketing department and the Ministry of Personnel because of business relationship, need two servers to communicate with each other, where also need to configure the VLAN in 3550 to communi

The core process of Spark SQL source analysis

Since last year, Spark's Submit Michael Armbrust shared his catalyst, more than 1 years, spark SQL contributor from a few people to dozens of people, and the development speed is extremely rapid, the reason, personally think there are the following 2 points:1. Integration: The SQL Type Query language is integrated into Spark's core RDD concept. This can be applied to a variety of tasks, stream processing, batch processing, including machine learning c

ATM and Gigabit Ethernet switches directly affect network performance

original network equipment, the connection between the ATM and Gigabit Ethernet networking technologies is involved, this article introduces the solution to this problem based on our practical experience. During the Phase I project construction of our campus network, the backbone uses the ATM technology and installs a certain number of network devices. The backbone switch uses the 3COM Corebilder 7000HD, which currently works normally. In the phase II project construction, the backbone adopts t

Outlook on Linux desktop applications

graphics card used by the author is ATi MOBILITY Radeon X1300. After the Fedora Core 8 is installed, no settings have been made, and the catalyst driver is directly installed. After the installation, perform necessary settings, restart after the configuration, and enable the desktop effect under Gnome after the restart. Now, you can use the 3D desktop. The entire process is not complex, right? Anyone who has experience using Linux knows that the more

Campus Network Integrated Wiring System Design Scheme

multi-purpose Breakout trunk cable that is sufficient to support the communication capacity of several buildings is used to separate several small-capacity optical cables through the distribution frame, extend to the wiring room of each floor. In terms of application, backup, and resizing, due to the limited distance between multi-mode optical fiber for future Gigabit Ethernet and ATM Gbps support, therefore, from the network center to the branch Decreasing End Point, 36 or 48-core Single-Mode

Implement iSCSI on AIX

management and Cisco Storage Area Network (SAN. The steps in this process are related to the Cisco Fabric Manager configuration, Cisco Device Manager configuration, and AIX host configuration. We also provide the AIX optimization part, which is optional, but we recommend that you do so. Prerequisites The process for configuring iSCSI on AIX assumes that the following conditions are met: AIX Version 5.2 or later is installed on the server or host node. Cabling of all networks and optical fib

[Original] Ubuntu ATI/Intel dual-graphics Driver Installation

This article only targets some models that contain AMD dual-graphics cards and has tested DELL Vostro 3550/DELL flexibility 14R (AMD 6630 and Intel HD 3000 ). The entire installation process requires the use of the command line, but it is still very simple for beginners, you just need to paste the command into the command line, remember to press 1. Uninstall and delete the original driver Ii. Install the latest AMD catalyst Driver Download necessary

Analysis of layer-3 Switching Technology

L2 chip, the second-Layer Chip forwards the packet. Because low-cost CPU processing is slow, the processing speed of such a layer-3 switch is slow. Market product selection  In recent years, the construction of Broadband IP networks has become a hot topic. Next we will introduce some layer-3 switches that are suitable for the access layer or small and medium size convergence layer. Mainstream third-tier switches on the market include Cisco Catalyst 2

Introduction to vlan and VMPS of Huawei switches (1)

The introduction of vlan of a Huawei switch and three VMPS modes. In the explanation of vlan of a Huawei switch, there are three VMPS modes (but User Registration Tool, namely URT, only supports open mode ). How to configure dynamic vlan and VMPS of a CATALYST 4500 series switch? This article takes cisco ios 12.2 (31) SGA as an example. 1. Introduction to VMPS: VMPS is short for the Huawei vlanMembership Policy Server. as its name implies, it is a cen

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