layer 2 network switch

broadcast storms due to the inability to divide broadcast domains. Although traditional routers can be used to isolate broadcasts, their performance is not guaranteed. The performance of a layer-3 switch is very high. It provides both layer-3 routing and layer-2 switching

The following describes in detail the structure and working principle of the layer-3 Switch. As long as there is a more direct layer-2 path between the source address and the destination address, the hardware maintains the route table, therefore, it can achieve line rate routing. The introduction of LAN switches enable

options for L3 protocols to meet the needs of various advanced network applications. 2. Comparison with L2 Switching The distributed L3 switch supports popular routing protocols and organically combines the advantages of L2 switches with vrouters. l3 switches can control IP addresses, making it easier to build large-scale local area networks. 3. Differences from

Layer-3 switches are quite common, so I have studied the comprehensive description of layer-3 switch technology. Here I will share it with you and hope it will be useful to you. The emergence of layer-3 switching technology solves the problem that the subnet must be managed by routers after the

Service improvements. I. What is Layer 4 switch technology? A simple definition of layer-4 switch is: it is a function, so it is not so much a hardware network device as a software network management system, in other words, it is

Why is a layer-3 switch used? 1. layer-3 switching is indispensable for network backbone To describe the role of a layer-3 Switch in many network devices, it is not described as a "mai

session connection corresponds to a transmission connection; a one-to-many relationship, a session connection corresponds to multiple transport connections; multi-pair relationship, multiple session connection corresponds to a transmission relationship, like a phone call, a person can talk to another person after speaking, Without having to let the telecommunications bureau know that someone else is talking. During a session, the session layer needs

Layer-3 switches are quite common, so I have studied the comprehensive analysis of the benefits of using layer-3 switches. Here I will share with you, hoping to help you. Layer-2 switches are based on mac addresses, frame layer-3 switches are based on IP addresses, and data

internal MAC address table. Speaking of exchange, in a broad sense, any data forwarding can be called exchange. However, the traditional and narrow layer-3 routing exchange technology only includes data link layer forwarding. Currently, layer-4 switching technology is mature. From the hardware point of view, the interface modules of the 2nd

1. layer-3 switching is indispensable for network backbone To describe the role of a layer-3 Switch in many network devices, it is not described as a "mainstay. In campus networks and urban education networks, three-layer switch

(1) The animation effect here refers to the interface switch animation effect, we often fade in and out, right out of exiting and so on, of course, there are some advanced animation, this animation suitable for the game class, for the general app will appear too fancy.(2) We do not add any framework (Quartzcore) here or import any header files (QuartzCore.h), you can create an object, such as Animation1, di

applicable to IP and IPX traffic, it also applies to IP address multiplexing and bridge traffic. Catalyst 2948G-L3 supports a high-performance architecture with 22 Gbps bandwidth. The Switched Optical Fiber supports all 48 10/100 ports and 2 gigabit uplink connections at a wire speed. The Catalyst 2948G-L3 can be installed in a 1.5RU chassis and can be equipped with an optional external redundant power supply. It supports 22 Gbit/s shared memory, com

A layer-3 Switch uses a new technology that combines layer-3 routing and layer-2 switching. If a large network is divided into small local networks by department, region, and other factors, the

legality of user access. IEEE 802.1x is a good medicine to solve this problem. It has been integrated into a layer-2 smart switch to complete access security review for users. 802.1x is a newly standardized LAN access control protocol that complies with the IEEE 802 protocol set. It is all called Port-based access control protocol. Based on the advantages of IEE

Switch#conf TSwitch (config) #no IP domain-lookupSwitch#vlan DatabaseSwitch (VLAN) #vlan 2Switch (VLAN) #vlan 3Switch (config) #int VLAN 2Switch (config-if) #ip address 192.168.2.1 255.255.255.0Switch (config-if) #no shutdownSwitch (config) #int VLAN 3Switch (config-if) #ip address 192.168.3.1 255.255.255.0Switch (config-if) #no shutdownSwitch (config) #interface fastethernet 0/24Switch (config-if) #switchport trunk Encapsulation dot1q--Cisco Configur

. However, this interface has all the features of physical interfaces, such as MAC addresses, you can configure the maximum transmission unit and the Ethernet frame type for transmission. In the above description, we mentioned that when the switch receives a data frame, it determines whether it is sent to itself, check whether the MAC address is the MAC address of the interface of the VLAN where the received data frame is located. If yes, perform

network systems. 2) the bridge is mainly used to connect two LAN networks and determine whether to forward received data frames through the MAC address of the data link layer. Host a and host B need to communicate. When the bridge receives data from host, determine whether A and B are in the same LAN Based on the MAC address and an address table maintained by th