Today, when the plug-in boxscroll, because if the conditions inside the judge more than two, so immediately want to rewrite switch. Change to half, suddenly remember Jshint and other code quality testing tool in a request, with = = = Replace = =, without unreliable forced transformation. Then suddenly guess, change to switch will not reduce efficiency ah? Switch
The layer-4 switch is quite common. So I studied the practical application of the layer-4 switch and shared it with you here. I hope it will be useful to you. With the increasing popularity of Mbit/s, Gbit/s, and even Mbit/s local area networks, broadband MAN networks and even broadband wide area networks are widely used. Whether it is Intranet, exclusive, or residential intelligent networks, it is increasi
The following article describes the parameter configuration of the Ethernet switch. The switch can be divided into Layer 2 switches, Layer 3 switches, and Layer 4 switches according to the working protocol layer, you can divide network-managed switches and non-managed switches based on whether the network management function is supported.
Packet forwarding rate indicates the size of the packet forwarding ca
The three-tier switch does have a certain "routing" feature that enables different subnet connectivity, but the particular concern is that its routing capabilities are much weaker relative to routers, and that three-tier switches can only use one network.
And it's usually just the interconnection between the LAN subnets, and it's not possible to connect the LAN to the WAN, or the Internet, because the routing protocols supported by the three-tier
Today to talk about customizing a single control, take the switch button to say, I believe you see a lot of such a, first look at the effect:
We can see a very common switch button, then analyze and analyze.
First of all:
This is composed of two pictures:
① a background picture with open and closed
② a sliding button for control on and off
First step:
Write a class to inherit view and rewrite sever
Method One:
Windows 10/8.1/8/7/XP systems are available by pressing ldquo; at the same time windows+lrdquo; the key combination to switch between different user accounts.
Method Two:
WIN10 System:
1. Press ldquo; at the same time under the system windows+drdquo; key combinations, all windows will be minimized and switched to the desktop;
2. Press ldquo; at the same time alt+f4rdquo; key combination, the center of the screen will pop ldquo; clos
As a basic component of network, the switch is one of the most common equipments of network, and its security has become the primary concern of many engineers and network administrators.
A switch is a network device that must be used in a unit local area network.
I work unit local area network use 15 Cisco Catalyst2950 switch. Management of the
User switch is a part of the national communication Network, but because of various reasons, the user switch can not play its effective function very well, one of the most prominent problems is the user switch extension users paging digital pager, the number displayed on the pager is the user switch out of the relay nu
I. Lab Objectives
Master the configuration of the switch tag VLAN;
Master the basic configuration methods of layer-3 switches;
Measure the test taker's knowledge about how to configure VLAN routing for a layer-3 switch;
Layer-3 switches are used to implement inter-VLAN communication;
Ii. Lab background
An enterprise has two main departments: the technical department and the sales
There was just one Cisco 2960 switch that failed this afternoon, replacing an alternate switch immediately, but the backup switch was transferred back from another branch and the password was forgotten. Just use the recovery password process, also share it.1. Set the Windows HyperTerminal, name customization. Recommended for SECURECRT:baud rate (number of bits pe
Switch as an essential statement in the selection structure is also added to Swift, as long as people with programming experience are not unfamiliar with switch statements, but Apple has greatly enhanced the switch to have features that are not available in other languages. Using the switch statement is simple:
The switch in JAVA7 supports the implementation details of stringAuthor: zsxwing Updated: 2013-03-04 21:08:02 posted: 2012-04-26 13:58:19Before JAVA7, switch can only support byte, short, char, int, or its corresponding wrapper class and enum type.In Java7, string support, which was called for a long time, was finally added. For example, here is a sample code that uses string in a
With the increase of Internet users and the expansion of bandwidth, the structure of the switch is also constantly developing, from the time of introduction, the Exchange architecture has experienced the bus-type and crossbar two stages.But since the development of Ethernet technology is thousands of miles, so the two architectures of the switch are currently active in the market. 1, the total line-type swi
In the formation of local area network, in accordance with the general wiring of generic specifications, the construction should be used with "rice standard" network cable or on both sides of the crystal head set dedicated "special-shaped number", and in the cabinet to do with "rice mark" or "Number tube" corresponding to the computer identification record
Many units have a small number of original computers, later, gradually added some computers, composed of a certain size of the local area ne
Mirror Port configurationMost switches support mirroring technology, which allows for easy troubleshooting of the switch. We call it "mirroring" or "Spanning". Mirroring is the copying of traffic from one port on the switch to the other (mirror port) for monitoring.CISCO3550 can be configured with 2 mirror portsCase: Mirroring Port 2~5 to Port 61. Mirror Port configurationSwitch>enableSwitch#conf T STEP3: C
In fact, the layer-4 switch is a network device, not a software network management system. It is mainly based on technology. In recent years, with the popularization of Mbit/s, Gbit/s, and even Mbit/s, the wide application of Broadband LAN and even Bandwidth WAN has driven the continuous development of switch technology.
In enterprise applications, the rapid development of Internet, the adoption of e-commer
Layer-3 Switch configuration-configure a group of layer-2 ports
Configure terminal enters configuration status
Nterface range {port-range} enters the group configuration status
Layer-3 Switch configuration-configure Layer-3 Ports
Configure terminal enters configuration status
Interface {fastethernet | gigabitethernet} interface-id} | {vlan-id} | {port-channel-number} enter the port configura
The current limits of vswitches and vrouters have been deprecated, and some products generally combine the two. For a wireless switch, its access method is wireless, and its role is the exchange function. However, its advantages improve the network performance of enterprises. Next, we will introduce the advantages of wireless switch Management in WLAN.
The problem is that managing multiple access points is
The rapid development of wireless networks brings about more expanded network space. In a wireless network, a large wireless network will certainly have a wireless switch, so let's analyze the outstanding advantages of the wireless switch function. See what skills it has.
The problem is that managing multiple access points is an insurmountable situation for networks that may involve hundreds or thousands of
A repeater or hub cannot isolate a conflict domain and cannot isolate a broadcast domain, a bridge or a switch can only isolate a conflict domain from the broadcast domain, and the router can isolate the conflict domain and isolate the broadcast domain.ResolutionThe first thing to know is the conflict domain and broadcast domain, when a piece of network card send information, it is possible to conflict with another NIC network adapter is called the co
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