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Many new client/server applications and the advent of multimedia technology, resulting in traditional shared network is far from satisfying the requirements, which also promote the emergence of LAN switches. 1, the definition of the switch The LAN switch has many ports, each with its own dedicated bandwidth, and can connect to different network segments. The communication between each port of the
In the early 90, with the improvement of computer performance and the increase of traffic, traditional LAN has more and more exceeded its own load, switching Ethernet technology came into being, which greatly improved the performance of LAN. The two-tier switch plays a key role in the development of the switch technology, but with the maturity of the two-layer switch
The use of the SNMP protocol in switches I'm sure you're not unfamiliar, so let's go over 5 basic switch SNMP configuration commands in detail. The completion of the switch SNMP configuration commands is a common problem, how to complete the switch SNMP configuration commands, it also has any related password and so on, all will be comprehensively solved in this
To realize the mutual exchange between different VLAN and different network segment, it is necessary to use the VTP technology of the switch, the application of the switch VTP technology can reduce the management of the VLAN by the network administrator, and make the network administrator easy to add, remove and adjust the VLAN in the network and maintain the unity of VLAN programming. Set core
The LAN contains a large number of computers and relies solely on anti-virus software to scan and kill one by one. The workload is huge, and it is not conducive to solving network faults efficiently, therefore, I plan to test whether the communication speed between computers in the LAN is normal. The following describes what is a switch fault, which causes many kinds of switch faults. For example, if the mo
Fault types that can be solved by the RF restart Command Group in a Programmable switch The restart command can solve the following fault types: First, the software operation failure is caused by some interference of the switch; Second, when the switch system enters the maintenance application stage, the maintenance operator's maintenance level is faulty or the f
The layer-4 switch is quite common. So I studied the comprehensive application of the layer-4 switch and shared it with you here. I hope it will be useful to you. With the popularization of broadband and the deepening of various network applications, our local network is undertaking heavy business traffic. The amount of transmitted audio, video, data, and other information in the network system is full of b
For switches in an SDN network, the above exchange functions can be implemented using software or hardware based on the needs of the Use scenario. Software-implemented SDN switches are usually integrated with virtualized Hypervisor to support multi-tenant flexible networking and other services in cloud computing scenarios. The hardware-implemented switch can support networking Based on hardware devices and meet the hybrid networking requirements of SD
such as the Cisco 2960x-24ps-l (24,000 Gigabit Port 4,000 gigabit), forwarding bandwidth 108Gbps, switching bandwidth 216Gbps, packet forwarding rate 71.4Mpps, according to the non-clogging line speed forwarding to calculate, exchange capacity of 2*28*1gbps=56gbps, The nominal 216Gbps is much higher than this, why? Is it due to the different design of the switch matrix? How did he figure out the 216Gbps? Again, for example: its packet forwarding rate
Contact with the switch has been for some time also, you can find that some of the content seems more confused, such as: Switch configuration default gateway, configuration of the specific command has been very familiar, but now is not quite understand why to complete the switch gateway settings, I also find some information on the Internet, and some say to remot
What exactly is trunk? What are the advantages of using the trunk function to us in the application? And how to switch trunk configuration in a specific switch product, let's take a look at these areas of knowledge. In the performance parameters of the two-tier switch. often mentions an important metric: TRUNK, many of the two-tier
The last article on how to use LoadRunner monitor Linux performance indicators, but the CPU on a few indicators are not clear, the following detailed said. CPU Utilization good understanding, that is, CPU utilization, more than 75% is higher (also has the argument is 80% or higher). In addition to this indicator, but also in combination with the load average and context Switch rate, it is possible that the high CPU is due to the latter two high indic
the cache entries of the old a address space will affect the translation of the address space of the B process, so when the process switches, the TLB operation is required to clear the effects of the old process. We have one by one discussions below.2, absolutely no problem, but poor performance of the programWhen the system has a process switch, from process A to process B, which causes the address space to swit
Switch principle, Switch principle, the concept of switching in networks and telecommunications. Frames on the Ethernet include the source MAC address and destination MAC address. The switch receives frames from the source device and quickly sends them to the destination address. The basic concept of exchange refers to the devices that make decisions based on the
When creating an ACL on a vswitch, you can use a string or a number to name the ACL. Generally, you can use a string + a number to name the ACL for easy identification; the standard ACL or extended ACL is identified by fields. For example, standard ACL and extended ACL are identified by extended ACL.The configuration in the following example shows how to create an extended ACL named anti-virus on the vswitch and apply the acl to the in direction of fastEthernet port 0/1:
next time the computer communicates with the same IP address, the MAC address is not queried, but the MAC address in the cache is referenced directly. In switched networks, the switch maintains a MAC address table and sends the data to the destination computer based on the MAC address. Why to bind Mac with IP address: IP address modification is very easy, and MAC address is stored in the network card EEPROM, and the MAC address of the network card
In the daily use of switches, There will be various problems. The first problem is that the environment is wet, the circuit board is damp and short-circuited, or the components are due to high temperature and other problems, the following article describes the classification and troubleshooting of switch faults. Common switch fault categories: Several smart solutions are provided. The following describes
Command for basic configuration of Cisco2950 vswitch 1. Configure the IP address To be able to be managed by a network management switch, a management IP address must be assigned to it. By default, VLAN 1 of a CISCO switch is managed. VLAN, Which is configured with an IP address for the VLAN, and the switch can be managed by the network. The command is as foll
In recent years, with the rapid development of internet/intranet and the wide application of B/S computing mode, the business of cross region and network has been growing rapidly, and the industry and users have deeply felt the bottleneck effect of traditional routers in the network. The three-layer switch can operate on the third layer of the network protocol, play the role of routing decision, and have the speed of the second layer exchange, and the
the setting method of Tplink router switching working mode TP Mini Routers offer a variety of operating modes: Router (Router), AP (wireless access point), Repeater (relay), client (clients), Bridge (bridging), suitable for use in different network environments. Note: If it is a 3G mini router, there is also 3G mode. Used in different network environments, mini routers may need to switch to different working modes, such as using router mode at home
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