transmission efficiency will be low due to a large number of broadcasts on the network. To avoid a broadcast storm caused by broadcasting on a large vswitch, You can further divide it into multiple virtual network VLANs ). However, this will cause a problem: Communication Between VLANs must be implemented through routers. However, traditional routers cannot perform communication tasks between VLANs, because the Routing Capability of traditional routers is too weak compared with the network traf
necessary means to solve the problem. A proper understanding of these features will be of great help to reasonably apply layer-3 switches. To this end, we will briefly introduce the mainstream features of layer-3 switches.
ProCurve5406zl is one of the mainstream three-tier switch
network VLANs ). However, this will cause a problem: Communication Between VLANs must be implemented through routers. However, traditional routers cannot perform communication tasks between VLANs, because the Routing Capability of traditional routers is too weak compared with the network traffic of LAN.
In addition, the price of a gigabit router is unacceptable. If you use a layer-
indispensable for connecting subnets
If the number of computers on the same network exceeds a certain number, usually around 200, depending on the communication protocol), it is likely that the network transmission efficiency will be low due to a large number of broadcasts on the network. To avoid a broadcast storm caused by broadcasting on a large vswitch, You can further divide it into multiple virtual network VLANs ). However, this will cause a problem: Communication Between VLANs must be im
price of a gigabit router is unacceptable. If you use a layer-3 Switch to connect to different subnets or VLANs through a gigabit or 10-Gigabit port, after Dividing subnets economically, subnets must rely on routers for communica
Intranet. It combines the advantages of layer-2 switches and layer-3 routers into a flexible solution to provide line rate performance at all levels. This integrated structure also introduces policy management attributes, which not only associate Layer 2 with Layer
protocol), the network transmission efficiency may be low due to a large number of broadcasts on the network. To avoid a broadcast storm caused by broadcasting on a large switch, you can further divide it into multiple virtual networks (VLANs ). However, this will cause a problem: Communication Between VLANs must be implemented through routers. However, traditional routers cannot perform communication tasks between VLANs, because the Routing Capabili
of the entire network base layer. If the network size is very large, in this case, it is best to select a gigabit switch so that the next layer of the network can continue to connect to the switch for expansion, if the network size is not very large (at least 200 computers
traffic of LAN.
In addition, the price of a gigabit router is unacceptable. If you use a layer-3 Switch to connect to different subnets or VLANs through a gigabit or 10-Gigabit port, after Dividing subnets economically, subnets m
The processing of layer-3 data packets by the Gigabit route switch technology, I insist on writing notes every day. Record your experiences and put more time into your career. In the traditional sense, only the device that processes Layer 2 Data Forwarding is called a
to select a gigabit switch so that the next layer of the network can continue to connect to the switch for expansion, if the network size is not very large (at least 200 computers are connected to a layer-3
advantages of layer-2 switches and layer-3 routers into a flexible solution to provide line rate performance at all levels. This integrated structure also introduces policy management attributes, which not only associate Layer 2 with Layer
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 centralized
a layer-3 test. Take the outstanding layer-3 Switch DGS3308TG of Digital China D-Link as an example. We connect the eight Gigabit ports of the vswitch with the eight Gigabit ports on t
, as the core of the network, there is no substantial breakthrough in the router technology that acts as the interconnection between networks. Therefore, a new routing technology came into being-layer-3 switching technology, which is a routing technology because it works on the layer-3 network protocol, the two-
of G.703-ETH bridge converter for access, the price is equivalent to G/V converter, therefore, with the new network access solution, the larger the scale, the more nodes that are connected to the downlink, the more cost savings.
When the center end of the uplink uses a layer-3 Switch for access, the downlink branch node does not need any grade router, only need
There are many things worth learning about layer-3 switches. Here we will mainly introduce the future trend of layer-3 switch technology. From the current Ethernet switch market, there are many things worth learning. Here we mainl
China 3 layer Switch VLAN isolation192.168.1.0---------g1/0/1 S SW g1/0/2-------192.168.2.0192.168.3.0-----------------------|192.168.4.0-----------------------|Prohibition of 1.0, 3.0, 4.0 and 2.0 visits[H3c]acl Num 3000[H3c-acl-adv-3000]rule deny IP source 192.168.1.0 0.0.0.255 destination 192.168.2.0 0.0.0.255//Forbidden 1.0 Access 2.0[H3c-acl-adv-3000]rule de
disadvantages of a vswitch should begin with three aspects: overall architecture, performance, and function. The overall architecture refers to the value of basic performance parameters such as the port density, the maximum rate supported by the port, and the switching capacity of a layer-3 Switch. This allows you to determine the location and grade of the devic
There are many things worth learning about security switches. Here we mainly introduce the meanings and new functions of the layer-3 security switch. Security Switch-the new darling of the network industry, the gatekeeper of the network entry, is aiming to raise a large knife to all insecure factors. With the advent of
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