Cisco 3550 switch stp learning notes STP (Spanning Tree Protocol) (IEEE 802.1D) Spanning Tree Protocol-review the working principles of SW: 1. the frame it forwards cannot be modified. create a MAC-PORT ing table based on source MAC learning. forward the frames in the target MAC ing table directly from the corresponding port. for frames without target MAC ing/Target wide (Group) broadcasting, SW learns different commands from all port forwarding (exce
#十二步 Save ConfigurationDestination filename [startup-config]?Building configuration ...[OK]switch#-=--------Switch#reload#重新启动-----------Press RETURN to get started!00:00:14:%spantree-5-extended_sysid:extended sysid enabled for type VLAN00:00:17:%sys-5-config_i:configured from memory by console00:00:17:%sys-5-restart:system restarted--Cisco Internetwork Operating System SoftwareIOS (tm) C2950 software (c2950-i6q4l2-m), Version 12.1 (9) EA1, RELEASE Software (FC1)Copyright (c) 1986-2002 by Cisco
LAN switch full contact for you to explain the Catalyst series, about Cisco LAN switch maintenance and configuration application skills. This article mainly introduces the basic maintenance of the megast6000 series, Catalyst5000 series, Catalyst6000 series, and Catalyst5000 series.
LAN switches have evolved from a HUB-based LAN shared in the traditional sense to a broader space. Take Cisco's ipvst5000 series LAN switch as an example. It includes an in
ATI Display Driver--catalyst driver
ATI is currently one of the two major independent graphics manufacturers (has recently been acquired by AMD), its drive has a very long history, in fact, the previous ATI driver did not have a specific name, only version number, around June 2002, in order to counter the Nvidia side of the "Detonator" series Drive, ATI took out the "Catalyst
a very important application, which will prompt the IT team to rethink the Network Design of San Jose headquarters. Network convergence-transmitting data and voice over the same network-will save Cisco's long-term expenditure and serve as a platform for future development. However, in the short term, it will put heavy pressure on a diverse platform that forms the Cisco network infrastructure.
Cisco Catalyst 6500 switch and Gigabit Ethernet
The soluti
The previous articles introduced the spark SQL Catalyst Sqlparser, and analyzer, originally intended to write optimizer directly, but found forgetting to introduce TreeNode, the core concept of catalyst, This article explains how to better understand how optimizer is generating optimized Logical plan for optimizing analyzed Logical plan, which is explained by the TreeNode infrastructure.First, TreeNode type
Catalyst Optimizer, catalystoptimizer
For more information, see ChenZhongPu's Gitbook:Https://www.gitbook.com/book/chenzhongpu/bigdatanotes/details
The Catalyst of Spark SQL is easy to expand. It also supports rule-based and cost-based optimization methods.
Inside it, Catalyst contains a common library that represents the tree and operation tree rules. Under thi
The following describes a unique solution on the Cisco Catalyst Switch to prevent the harm of the worm in a very economical, effective, and scalable way, this greatly saves a lot of company losses.
What makes the administrators of many service operators and Enterprise Networks A headache is not only the constant development and variants, but also the increasing damage caused by attacks. Although worms do not usually destroy any data, the direct and in
Through significant improvements to the software infrastructure, the Cisco IOS software modular Catalyst 6500 maximizes operational efficiency and reduces downtime. By running the modular Cisco IOS subsystem as an independently recoverable process, this innovation can:
Through Fault suppression and stateful process restart, the unplanned downtime can be minimized to improve the availability of integrated applications;
By upgrading ISSU through soft
Spark SQL is one of the newest and most technologically complex components of spark. It supports SQL queries and the new Dataframe API. At the heart of Spark SQL is the Catalyst Optimizer, which uses advanced programming language features, such as Scala's pattern matching and quasiquotes, to build an extensible query optimizer in a novel way. We recently published a paper on Spark SQL, which will appear in Sigmod 2015 (by Davies liu,joseph K Bradley,x
AMD (ATI) today released the 9.6 version of the Linux Catalyst Driver, with two functional improvements: support for the new version of the Linux release version (SLED, SLED 11, RHEL 4.8) and enhanced support for MultiView (Multi-head output technology ). The MultiView feature makes full use of multiple GPUs and allows you to set, manage, and use Multiview configurations. A typical application is to build a multi-screen workstation. As early as 8.8 dr
Preparing the Catalyst 4500 switch for CNAThe switch restores the factory default restore command
Switch>enable
Switch#erase Startup-configSwitch#reload
To enable the switch to be managed by CNA, you must have the following two conditions: the IP address of the network management.Configuring IP for G1/1 ports
Switch#configureSwitch (config) #interface gigabitethernet 1/1Switch (config-if) #no SwitchportSwitch (config-if) #ip
Fast Ethernet and Gigabit Ethernet line cards
The Cisco Catalyst 4500 series scalable, modular, and high-density switches provide second, third, and fourth-layer switches and intelligent services with outstanding performance, enabling network control and permanent deployment. These switches provide a variety of Fast Ethernet and Gigabit Ethernet line cards, including desktops, branch backbone and servers for enterprise and commercial exchange solution
Step 1: Download Native IOS software for Catalyst 6509 from CCO Based on the flash card capacity;
Show slot0: shows the flash card capacity. The selected software size should be smaller than or equal to the flash card capacity.
If flash card capacity is 24 M, we choose the IOS software c6sup22-psv-mz.121-8b.E15 for Catalyst 6509, which is used for S2 and MSFC2, feature software for service providers, versio
Fast Ethernet and Gigabit Ethernet line cards
The Cisco Catalyst 4500 series scalable, modular, and high-density switches provide superior combined second-layer switching and intelligent services, which enable network control and sustainability. These switches provide a wide range of Fast Ethernet and Gigabit Ethernet line cards, including the desktop, branch backbone and servers for enterprise and commercial Exchange solutions, and the fiber and cop
AMD's recently released catalyst 10.6 driver package not only brings a lot of new features and game performance improvements to Windows systems, but also changes significantly in Linux systems, for example, the new 2D acceleration architecture is used by default, Red Hat Enterprise Linux 5.5 is officially supported, and OpenGL 4.0/3.3 is officially supported. In particular, the 2D acceleration architecture attracts attention.
In fact, AMD started to
Cisco's flagship Switch replaces the new brain with the new IOS software modularization to bridge the "operational gap" between IT talent and network service needs ".
On April 9, August 29, Cisco Systems announced the launch of a number of software improvements based on Cisco Internet Operating System IOS. These improved IOS software is mainly used in the Catalyst 6500 series switches, Cisco's flagship product. It will help IT managers improve network
According to the definition proposed by IUPAC in 1981, a catalyst is a substance that accelerates the rate of reaction without altering the standard Gibbs free enthalpy of the reaction. This action is called catalysis. A projection involving a catalyst is a catalytic reaction.This substance is not only in chemical reactions, but also in the Internet industry. For example, China today's internet industry can
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