vostro 3550

The most important function of a vswitch is to speed up the fast data forwarding in a large local area network. The routing function is also used for this purpose, so the switch port issue is also very important, it is really not easy to set a vswitch port. In an Ethernet Switching environment, communication between two workstations is usually not intercepted by a third party. In some cases, we may need such listeners, such as protocol analysis, traffic analysis, and intrusion detection. Therefo

the bound hostNote:The above command sets a port on the switch to bind a specific MAC address, so that only this host can use the network, if the NIC of the host is changed or another PC wants to use the network via this port, it will not be available unless the MAC address bound to the port is deleted or modified.Note:The preceding functions are applicable to Cisco 2950, 3550, 4500, and 6500 series switches.2. solution 2-Expanded access list based o

-performance gigabit Ethernet, and the cost increase per port is not large. When connected to the new Catalyst 3550-12T multi-layer Gigabit Ethernet switch, the Catalyst 2950T-24 switch provides an integrated copper Gigabit Ethernet solution for medium market customers who need to upgrade their fast Ethernet trunk. Excellent Service Quality The Catalyst 2950 series provides excellent LAN edge QoS, Which is unmatched in the industry. All Catalyst 2950

)# Delete the MAC address of the bound host Note: The preceding command sets a port on the vswitch to bind a specific MAC address so that only the host can use the network, if the NIC of the host is changed or another PC wants to use the network via this port, it will not be available unless the MAC address bound to the port is deleted or modified. Note: The above functions are applicable to Cisco 2950, 3550, 4500, and 6500 series switches. 2. solutio

Take the Cisco 2950 vswitch as an example. log on to the vswitch and enter the management password to enter the configuration mode. Then, run the following command: Switch # config Terminal # Enter the Configuration Mode Switch (config) # interface fastethernet 0/1 # Enter the specific port configuration mode Switch (config-If) # switchport port-secruity # Configure port security mode Switch (config-If) switchport port-security Mac-address MAC (MAC address of the host) (Config-If) No switchport

) # Remove the MAC address of the binding host Attention: The above command sets a port on the switch to bind a specific MAC address. So only this host can use the network, if the host's network card has been replaced or other PCs want to use the network through this port is not available, unless you delete or modify the port binding on the MAC address to normal use. Attention: The above functions apply to Cisco 2950, 3550, 4500, 6500 series Swit

supports SFM for 256 Gbit/s backboard bandwidth ). Each slot supports 16 Gbit/s and is provided by 8 Gbit/s full-duplex dual-matrix connections to each module. The forwarding rate is as high as 210 Mpps. Supports 192 1 Gbps relay or 576 10/100/1000BaseT ports. The integrated POE (802.3af) supports up to 1152 IEEE-compliant 10/100 ports or 576 IEEE-compliant 10/100/1000 ports. Use common modules and operating system software on all Cisco Catalyst 6500 series chassis. The Catalyst 6500 series pro

BGP experiment, you can even use this configuration to establish full-network connectivity, and then create a tunnel port to implement the experiment topology. During remote configuration, you can save multiple configuration files and switch between them. The configuration file named router-confg can be used as a final backup-if you accidentally delete the configuration, there will still be an available configuration after the system restarts.Conclusion: The initial enchanting phenomenon is cau

following functions can be implemented on Cisco 2950, 3550, 4500, and 6500 series switches, but note that 2950 and 3550 require the switch to run the enhanced software image EnhancedImage ).MAC address-based user traffic Filtering:Switch (config) Macaccess-listextendedMAC10# Define a MAC address access control list and name it MAC10Switch (config) permithost0009.6bc4. d4bfany# A host with the MAC address 0

reason why ConfigMaker is no longer used is that this tool can only generate static configurations. The basis is that you tell it what to configure and what to configure), and then download these static configurations to the vro. However, over time, users began to want to have a network management tool that provides much more functionality than ConfigMaker. They want to get more real-time status and interface information from the vro. They want the software to create a more suitable configurati

Port Analyzer switch Port parser) feature, or the early "port mirroring", "Monitoring port" feature. The listening object can be one or more switch ports, or the entire VLAN. If the port to listen on ("Source port") or VLAN and the port of the Connection monitoring station ("target Port") is on the same switch, we only need to configure span; If you are not on the same switch, you need to configure Rspan (Remote SPAN). Different switches have different restrictions on span, such as the source a

command set a port on the switch to bind a specific MAC address, so that only this host can use the network, if the host computer network card is replaced or other PCs want to use the network through this port is not available, unless you delete or modify the port bound on the MAC address, to normal use.Note: The above features are available for Cisco 2950, 3550, 4500, 6500 series Switches2. Scenario 2--extended access list based on MAC addressSwitch

Failure phenomenon When the computer is unable to connect to the Internet, find the user's IP address from the document, try to ping several, and find all the connections timed out. Then, Ping the Library building's central switch is normal. The electronic reading Room uses Cisco Catalyst 2950t-24-smi as a hub device: and through a twisted pair of cables with the central switch of the library building Cisco Catalyst 3550-48-emi connection. Since all

As one of the world's most famous PC manufacturers, Dell released VostroV13 ultra-thin business laptop, which is Dell's first ultra-low price notebook dedicated to enterprise users. The starting price of the Low-configuration version is USD 449 (about RMB 3000). It uses the Intel saiyang 743ULV processor and pre-installs the UbuntuLinux operating system; the standard version starts with $649 (about $4400) and uses Intel Core2DuoSU7300, SU3500 processor, pre-installed Window As one of the world'

located; the installation machine is sda1; 2. view the UUID in Ubuntu, first Mount the hard disk partition, and then run the following command: (1) The UUID tdtc010 @ tdtc010-Vostro-270 of each partition :~ $ Ls-l/dev/disk/by-uuid (2) determine the CentOS partition tdtc010 @ tdtc010-Vostro-270 :~ $ Blkid/dev/disk/sdaX (X is 1, 2, 3 ......) until "/dev/sda6: LABEL ="/"UUID =" 9cd61716-6cdb-43d1-8e58-348089f

Microsoft launched its own Windows 8 x86 tablet SurfacePro, which will sooner or later steal the business of other PC manufacturers. Many hardware manufacturers have begun to plot countermeasures. Dell's countermeasure is to embrace Linux. Dell has just launched Ubuntu XPS13, pre-loaded Ubuntu12.04PrecisePangolin, for $1,449, $50 cheaper than Windows. XPS is mainly intended for the consumer market, but recently DellUSA once again announced Microsoft launched its own Windows 8 x86 flat Surface P

Implementation of Hard Disk Partitions In two Linux systems: 1. 30 GB-Ubuntu12.04 (desktop) 2. 4 GB 3. 80 GB-CentOS 4. 386 GB installation sequence: Ubuntu-> CentOS phenomenon: many websites that cannot access the CentOS operating system install CentOS first and then install Ubuntu! Reprinted please indicate the source: xiaobin_hlj80 solution steps are as follows: 1. Downgrade Grub2 to make Ubuntu compatible with the CentOS boot program, we need to change Grub2 of Ubuntu to Grub! This is importa

Despite the one-click installation in opensuse software package management, the one-click installation is always problematic and cannot be started. The prompt "X-server not running" appears, and a series of errors are displayed. Search the entire Google and finally find the solution:Installation environment: OS: opensuse 10.2MACHINE: Dell vostro 1310Graphics: NVIDIA geforoce 8400Memory: 3 GBHard Disk: 250 GBMotherboard: Intel 965 Traditional Method

SuperStack 3 Switch 4400 and other Gigabit Ethernet Switching Products, 3Com provides users with a complete set of advanced enterprise-level LAN Solutions. Cisco Catalyst 3550 features The Cisco Catalyst 3550 smart Ethernet switch is a stackable multi-layer switch product that improves network health through high availability, quality of service (QoS), and security. With a series of Fast Ethernet and Gigab

. When configuring SPAN, we need to provide the source port, VLAN number, and target port. 4000/6000 CatOS switch:Setspan6/176/19 // SPAN: the source port is 6/17, and the target port is 6/19. 2950/3550/IOS/6000IOS switch:Monitorsession1local // SPANMonitorsession1sourceinterfacefastethernet0/17 both // source port, or a VLANMonitorsession1destinationinterfacefastethernet0/19 // target port 2900/3500 XL switch:Interfacefastethernet0/19 // target portP