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The port of the core switch is mainly a fiber type, but the price of the switch fibre port is very expensive and requires special attention from the user, while the fibre port of the switch is not stacked and can only be used for cascading purposes. Cascading can use either a normal port or a special mdi-ii port. A pass-through cable should be used when the two
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
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
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
In the complex network environment today, the switch has become indispensable, so the switch manufacturers also develop quickly, here to take Cisco to give us a simple exchange! Cisco: Cisco; A simple introduction: Cisco is the world's leading provider of network solutions. Cisco's name is taken from San Francisco, where it is known as the world's Golden Gate Bridge. It can be said that, relying on its own
1. Unplug the power cord of the vswitch, press the switch Mode button, and re-plug the power cord of the vswitch. Release the Mode button after the LEDs on Port 1x are off. 2. For the Catalyst 2940/2950 L series: Unplug the power cord of the switch, hold down the Mode button of the switch, and re-plug the power cord of the sw
The backboard bandwidth in a Gigabit Switch mainly refers to the maximum data volume between the processor and the data bus. It should be said that it represents the comprehensive performance of the Gigabit Switch, which is one of the parameters we must carefully look at when purchasing. At present, Gigabit Ethernet has become a strategic choice for high-speed and enterprise-level broadband network applicat
solved! How to judge the network loop Because almost all newly purchased switches support the port loop monitoring function, we can use this function to automatically determine whether a network loop occurs on the specified communication port. Once the loop monitoring function is enabled on the specified Ethernet communication port, the switch device can automatically and periodically scan and monitor all communication ports to determine whether the
When another vswitch in the LAN is not attacked by a network virus, it is likely that the performance of the vswitch is relatively stable and the switch system cannot be remotely managed, I hope this article will teach you more things. As one of the core devices in the LAN, the target switch's performance directly determines the network's data transmission performance. However, after a long period of work, the swi
Layer-3 Switch: the principle of layer-3 switch is that two hosts A and B Using IP addresses communicate with each other through the layer-3 switch. When Site A starts sending, it compares its IP address with the IP address of Site B to determine whether Site B is in the same subnet as it. If the destination site B and the destination site A are in the same subne
[Content of this section] The switch class cccontrolswitch inherits from the control class cccontrol. The control class cccontrol mainly provides a series of control trigger events for child classes. When a subcontrol triggers related events, it executes the related control Event Callback Function. This is similar to the menu button callback in ccmenu. The control class cccontrol has three subclasses: (1) Switch
Android-Implementation of the simplest Custom button in history, android Switch Reprinted please indicate the source: http://blog.csdn.net/l1028386804/article/details/48102871 Most of the time, we have such an effect in many Android and IOS apps. There is a button, and we click it to slide it, "On" will be displayed, and "off" will be displayed. This is the switch button. For example, many functions of the
In front of you to explain a multi-choice ElseIf statement, although this statement can make a variety of judgments, but when used, need to write a lot of if statements, to our program readability inconvenience, in order to avoid the IF statement too much and improve the readability of our program, you can use the switch multiple judgment statement, In this chapter we will introduce you to the "switch state
In a switched network, how do you decide where to start looking for problems? It is very difficult to delve into the "perspective" of a switched network. First of all, in the 2-tier exchange or bridge forwarding, but to the 3-tier exchange has more advanced features and forwarding rules, such as VLANs. To the 4-tier exchange, it is more complex, there are more advanced forwarding and load balancing technology, fault diagnosis and resolution of troubleshooting needs more knowledge of
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