vostro 3550

Switch Port Security Summary The most common understanding of port security is based on the MAC address to do the control and management of network traffic, such as MAC address and specific port binding, limit the number of specific ports through the MAC address, or in the specific port does not allow some MAC address frame traffic through. A little extension of the lower port safety, which can be based on 802.1X to control the network access traffic. First, talk about MAC address and port bin

Port speed limit must start QoS on the switch Switch (config) #mls QoS//Start QoS on the switch Here are the implementation steps. First, create an ACL Since this is a three-layer switch, although the port speed limit, but also to consider the network address through the port, in this case, we choose to the CISCO3550 switch 22nd port speed limit, the port belongs to Vlan66,ip address segment 10.66/ 16, so first create an ACL, as follows: 3550#conf T E

I. Introduction Segmentation fault occurs when you use Android pre-installed gdbserver to debug the dynamic library. You have to use the existing compilation chain to re-compile a gdbserver. Thanks to Android-How-to rebuild gdbserver this article, refer to this article my solution process is as follows. Here we should emphasize one point:The following is the target path of sysroot during sysroot compilation and the sysroot path specified during gdbserver compilation. You must use the [absolute p

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 this method is effective. The specific implementation steps are as follows. 1. Create an ACL Because this

VswitchThe most commonPort SecurityYou can control and manage network traffic based on the MAC address. For example, you can bind a MAC address to a specific port to limit the number of MAC addresses that a specific port uses, or, the frame traffic of some MAC addresses cannot pass through the specific port. Port Security means you can control the network access traffic based on 802.1X. I. Binding MAC addresses and ports and configuring traffic permitted according to MAC addresses 1. Bind the MA

This article only targets some models that contain AMD dual-graphics cards and has tested DELL Vostro 3550/DELL flexibility 14R (AMD 6630 and Intel HD 3000 ). The entire installation process requires the use of the command line, but it is still very simple for beginners, you just need to paste the command into the command line, remember to press 1. Uninstall and delete the original driver Ii. Install the l

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 this method is effective. The specific implementation steps are as follows. 1. Create an ACL

Vswitch Port SecurityThe most common understanding of port security is to control and manage network traffic based on the MAC address, such as binding a MAC address to a specific port, restrict the number of MAC addresses that a specific port uses, or prohibit the frame traffic of certain MAC addresses from passing through a specific port. Port security means that the network access traffic can be controlled based on 802.1X. First, let's talk about binding the MAC address to the port and configu

generally not the case, we can find the answer we need by executing corresponding commands on the vswitch. I used the show inter command in the past, but this command displays too much information, which seems inconvenient. Now I am using the show inter status Command, this command displays the disconnected status of each port one by one (expressed by "connected" and "notconnect ), in this example, I found an idle Port 3 through this command for subsequent testing.

. 3550-1 # conf t 3550-1 (config) # int F0/1 3550-1 (config-If) # switchport Mode Access/Specify the port mode. 3550-1 (config-If) # switchport port-security Mac-address 00-90-f5-10-79-c1/configure the MAC address. 3550-1 (config-If) # switchport port-security maxi