cisco 48 port poe switch layer 3

We have explained a lot about the configurations of CISCO switches. Here we will mainly explain the port security configurations of CISCO 3550 switches. Scenario: There is a CISCO3550 switch in a certain unit. For the sake of network security, the security requirements for some ports are high, that is, only the specifi

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

complete forwarding simply by searching the layer-3 forwarding table items. This processing mechanism has a simple process and high forwarding efficiency, but also makes the configuration control of the hardware table item by the CPU software complicated. Each time the Mac and physical ports corresponding to the IP address change, the three-tier Forwarding Table item must be updated. There is a high possib

Example: 3026 2012 5012. The value of 2nd bits is 0 ~ 4 indicates that it is a layer-2 switch. 3550. The fifth digit is 5 ~ 9 indicates that it is a layer-3 switch. LI (LitesoftwareImage) indicates that the device is a weak feature version. SI (StandardsoftwareImage) i

Introduction As the core network switch of our company, the CISCO3550 has been running stably for many years, and its functions can also meet our needs. However, its port speed limit function is not as easy to implement as some other switches, fortunately, the implementation method has been found recently. After the configuration is complete, it is verified with the iperf software. The result shows that thi

interconnection between networks has no qualitative breakthrough. In this case, a new routing technology came into being. This is the layer-3 switching technology: it is a router because it can operate on the layer-3 of the network protocol, it is a type of routing that understands a device and can act as a route deci

Layer-3 switches of Cisco devices practice communication between different VLANs. Layer-3 switches of Cisco devices practice communication between different VLANs. Cisco device

when he cannot find the address, and the hub is only responsible for forwarding the email regardless of the Bounce Message. Vro A Router operates at the network layer, the third layer in the OSI Layer-7 network model. It works by removing the information of the second layer (data link

forwarding function between IP networks. On the backbone network, the main role of a router is routing selection. In man networks, routers are mainly used for network connection and route selection, and are responsible for connection and data forwarding between subordinate networks. In the campus network, routers are mainly used to isolate broadcast storms between subnets, simplify network management, and prevent unauthorized subnet access. Vro features are complex, so you can only use software

layer-2 switch or a layer-3 Router The basic function of a vswitch is to receive data packets on the receiving port, select the output port, and send the data packets. How to select an output

I. Overview:On the forum, I saw someone asking how to prevent long-distance fiber lines from being eavesdropped or connected to other illegal switches. If they are the same, port security is used to prevent random access, log on to the rack to perform the test and record the test results. Forum question link: Workshop.Ii. Basic Ideas:A. assume that the vswitch is a layer-

/100 Mpbs adaptive ports and 1 Gigabit expansion slot. You can purchase different types of Gigabit modules provided by youkang to achieve the function of connecting to a gigabit network. The UGS-7324RS has 15 Gbps non-blocking back-board bandwidth, in the layer-2 switch, the packet forwarding rate reaches the line speed value of Fast Ethernet; As a layer-

, 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-

1. Background Generally implement VLAN communication, or use a three-tier switch, or a single arm routing, both of which are very expensive, so when there is the need for VLAN communication, and the data volume of the VLAN communication is not very large, with 50 of Soho route to build a network is very affordable. My original demand is this:With an n-port two-layer