cisco enterprise switches

First look at the requirements: (to make the following effect)Take a look at the overall topology diagram:put a Laptop : L0DHCP automatically get IPput a server-pt : DHCP ServerSet IPSet Config inside the DHCPGateway (first routed address IP )Dns Serverput a switch: sw0(No configuration required, just a function of the expansion port)Place several routers: R0 , R1 , R2,dte , DCEconfigure each port's IP Address requirements:The connection is ensured by means of seriesTwo cases need to expand the

unassigned YES unset up downFASTETHERNET1/12 unassigned YES unset up downFASTETHERNET1/13 unassigned YES unset up downFASTETHERNET1/14 unassigned YES unset up downFASTETHERNET1/15 unassigned YES unset up downVlan1 unassigned YES unset up downVlan10 192.168.10.1 YES Manual upVlan20 192.168.20.1 YES Manual upsw1#650) this.width=650; "src=" Https://s3.51cto.com/wyfs02/M00/08/82/wKiom1njV3KCWsVAAAAp30tzTpQ385.png "style=" float : Left; "title=" QQ picture 20171015203147.png "alt=" Wkiom1njv3kcwsvaa

Basic configurations of Cisco switches One vswitch and two PCs can communicate with each other and allow login to the vswitch terminal. Command Configuration: SW1 # vlan database // enter the vlan database % Warning: It is recommended to configure VLAN from config mode, As VLAN database mode is being deprecated. Please consult user Documentation for associating ing VTP/VLAN in config mode. SW1 (vlan) # vla

Password Recovery for Cisco switches 1. Press and hold the modem key to power on. After Entering the console, release: switch: 2. Load the flash_init file for initialization: switch: flash_init 3. view files in flash: switch: dir flash: 4. rename the configuration file: switch: rename flash: config. text flash: config. old (set at will) 5. Start the vswitch: boot 6. view flash in privileged mode: # di

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Password Recovery for Cisco switches 1, hold the modem key, power, to enter the console after release: switch: 2, loading flash_init file initialization: Switch:flash_init 3, view the files in Flash: Switch:dir Flash: 4, rename the configuration file: Switch:rename flash:config.text flash:config.old (optional set) 5. Start switch: Boot 6, in the privileged mode of view Flash: #dir Flash: 7. Change th

The second wave of 802.11ac may force the upgrade of Enterprise Ethernet Switches The second wave of high bandwidth of 802.11ac may force enterprises to upgrade to a faster Ethernet switch in 2015. With the adoption of the second wave of 802.11ac wireless technology in 2015, many enterprises may need to upgrade Ethernet switches to support wireless network conne

(config) # IP default-Gateway 192.168.8.1 M1 M1 (config) # int VLAN 1M1 (config-If) # IP add 192.168.8.1 255.255.255.0M1 (config-If) # No sh Port ing on asa1 Asa1 Ciscoasa (config) # static (inside, outside) TCP int telnet192.168.8.8 Telnet netmask 255.255.255.255 Add an entry in the ACL to allow R1 to access port 23 of E0/1.Ciscoasa (config) # access-List Test permit TCP 12.0.0.1 255.255.255.255 12.0.0.2 255.255.255 EQ 23 Test results on r1 R1 R1 # telnet 12.0.0.2Trying 12.0.0.2... open Us

Currently, small and medium-sized enterprises are using asymmetric switches, which are very cost-effective. Here we analyze how to use asymmetric switches to improve network performance. Asymmetric switches are the first choice for enterprises that have funds and are unable to purchase high-end switches to improve netw

Enterprise-level Core switches are worth learning. Here we mainly introduce four key elements of enterprise-level Core switches. Currently, most enterprises in China generally access their networks through the backbone networks of China Telecom. They can only complete some basic information exchange functions, it canno

Enterprise-level Core switches are still commonly used, so I have studied the four major elements of enterprise-level Core switches. Here I will share them with you, hoping they will be useful to you. Currently, most enterprises in China generally access their networks through the backbone networks of China Telecom. Th

Many enterprises are currently using core switches. Here we mainly explain the main factors and problems that affect the development of enterprise-level Core switches. Currently, most enterprises in China generally access their networks through the backbone networks of China Telecom. They can only complete some basic information exchange functions, it cannot meet

Enterprise switches are worth learning a lot. Here we mainly introduce common troubleshooting methods for enterprise switches. Enterprise switches have various faults, and different faults have different forms. In case of failure

Layer-3 switches are quite common, So I studied the mainstream enterprise-level layer-3 switches in the market and shared them with you here. I hope they will be useful to you. In recent years, the popularity of networks and the development of enterprises have overwhelmed the traditional exchange system, and the network environment of enterprises has been restric

Enterprise switches are still commonly used. So I have studied the remote management tips of Enterprise switches. I will share them with you here, hoping they will be useful to you. Vswitches should be familiar to every enterprise. More and more enterprises have taken

Quidway S1700 series enterprise network switches Product OverviewQuidway®S1700 series enterprise network switches (hereinafter referred to as S1700) are the next-generation green and energy-saving Ethernet access switches launched by Huawei. For various applications of

Currently, most enterprises in China generally access their networks through the backbone networks of China Telecom. They can only complete some basic information exchange functions, it cannot meet enterprises' complex network application requirements, such as handling diversified businesses, rapidly increasing branches for information exchange, and increasing information exchange volume. Therefore, building a core exchange network has become one of the top priorities of large and medium-sized e

Cisco Wireless AP Configuration Guide requirements in complex enterprise environments Overview: using Cisco AP to build an enterprise wireless LAN, users' laptops do not need to be added to the AD domain,You can log on to the wireless network. the user name and password of the domain are used for Logon. SSIDS hides the

Tags: IP source GuardNetwork topology structure:Scenario Description:Core layer: Each VLAN interface gateway is at the core layerAggregation layer: Two stacks, port-channel to the core layer, Port-channel Xia Lian to the access layer, do not run dynamic routingAccess layer: Two port Port-channel, link to two aggregation switches respectivelyObjective:Prevent internal enterprise network from accessing DHCP s

In recent years, the computer network, especially the Internet development is very rapid, ATM and IP over DWDM technology development so that the network transmission bandwidth quickly increased. While the development of network security and management technology is relatively lagging behind, although the voice of network security is high, but really fall to actually few. It is often believed that increasing the security mechanism of the enterprise ne