C-F6. Multi-VLAN configuration DHCP? C3750-E? CISCO switches, c-f6c3750-e
C-F6. Multi-VLAN configuration DHCP? C3750-E? CISCO switches. After VLAN and interface are allocated according to our plan, we need to consider which VLANs need to be configured with the DHCP service. There may be multiple VLANs that need to be configured with the DHCP service.
DHCP Configuration
According to the planning table, we c
configuration and still use it after the next reboot, use the command copy running-config startup-configin privileged mode and press ENTER when you are prompted for confirmation. Restore the original configurationWhen you need to restore the original configuration, only need to delete the boot configuration file (startup-config), restart the switch, in privileged mode using the command erase Startup-config, prompted to confirm the press ENTER. RestartWhen you need to restart the switch, you ca
upload a new iOS file.① also usesCopycommand, copy the TFTP server contents into FLASH, enter the TFTP address, the file name to be copied, enter the confirmation, and the copy process will be prompted.② through the dir command can the new IOS have been uploaded successfully. Modify the boot IOS fileAfter uploading the new IOS file, you will need to modify the startup file name.① Enter global configuration mode, use the boot System command to set the boot file to the new iOS file name under FLA
command keyword that can be used in this mode. The command can be executed in ① user mode.After you enter the command enable , you can see that the prompt has become a pound sign (#) from the greater than sign, so that the system enters privileged mode.The command can be executed in ② privileged mode.Enter the command in privileged mode Configure Terminal , you can see that the prompt has changed from the pound sign to "(config) #" so that the system enters the "global configuration Mode".The c
command again to see the VLAN condition, you can see that the VLAN100 is gone, and there are several interfaces under VLAN 100, and there is no return to the default VLAN 1.Alternatively, you can delete the entire Vlan.dat file by using the delete flash:vlan.dat privileged EXEC command. Once this command is executed and the switch is reloaded, the previously configured VLAN is no longer displayed. This method can effectively restore the VLAN configuration of the switch to the factory default st
Upgrade object: WS-C3750-24TS-E Ingredients: Cisco TFTP server, one cable (connecting hosts and switches), my ThinkPad Local Area Connection: 2.2.2.1 3750-vlan 1:2.2.2.2 Telnet to the switch for configuration 1. Setting up a TFTP server Close other network connections on the host to ensure that the TFTP server address is a locally attached IP (2.2.2.1). Copy the new iOS to the TFTP server root directory. 2. Test the connectivity of the switch to TF
A university batch upgrade iOS, just start manual upgrade. It feels slow and writes a similar script. as follows:1,topology
Eth_link Switch (3750x) --------------computer (TFTP32) 192.168.1.1/24 192.168.1.110/24
2, configuration———————————————————————————————————————————————EnConf tint VL 1No shutIP Add 192.168.1.1 255.255.255.0ExitExit//Exchange can be either managed IP or 3-layer IP with Local_computer to communicate.! Vlan1 start up takes a few s time, a little bit of w
switch is a gigabit switch (all interfaces are gigabit)TT: Indicates that the gigabit on-connection port of the switch is base-t (i.e.: RJ45 interface)TC: Indicates that the switch gigabit on the port is dual-use, directly with the BASE-T, you can add modules on it.TS: Indicates that the 37 switch also has a gigabit expansion slot.T: Indicates that the 37 switch does not have a gigabit expansion slot.E: Indicates that the switch is an enhanced three layer; S: Indicates that it is a standard thr
Company a device, Ws-c2960s-24ts-l, is the Cisco 24 Port 1000M Two layer Exchange Yang, the use of iOS version of 12.2 (UNIVERSALK9-M) iOS software, the company recently installed some digital cameras, The monitoring host and a billiard-type monitoring to the machine, the interface of the transmission rate is much larger than the rate of ordinary office, the following is the rate of the two interfaces I copied.G1/0/3 (Monitoring host interface)5 minute input rate 2087000 bits/sec, 4065 packets/s
About MAC address driftConnection between Cisco 3750 and H3C 3100, MAC floatingRecently, one of the company's devices is C3750, gi1/0/12, g1/0/22, and g1/0/2 each connect to an H3C 3100, and there is always a mac address (000f. e207.f2e0) in the above several ports float, no loop, no address spoofing, I do not know why, the log prompt is as follows:Aug 4 22:15:07. 292 GMT: % SW_MATM-4-MACFLAP_NOTIF: Host 000f. e207.f2e0 in vlan 800 is flapping between
, indicating electrical PortTC: Applicable to switch 2918,2928 and 2960, indicating electrical port + SFP dual-media portLT: includes two kinds of hybrid electrical ports: common electrical ports and POE electrical portsLC: Includes POE electrical port + common electrical port + 2SFP dual-media port and two hybrid electrical portsTS: Applicable to, indicating electrical port + SFPPS: Applicable to 3560,3750, indicating POE + SPFTD: Applicable to 3750, indicating electrical port + 10GBECommon Mod
computer using a network cable.
Switch # ping 192.168.0.254
If you can ping general rules, you can start importing configurations.
Switch # copytftp: // 192.168.0.254/vlan. dat flash:
Switch # copytftp: // 192.168.0.254/config. textrunning-config
Save Configuration
Switch # wr
Restart
Switch # reload
To upgrade the vswitch system, follow these steps:
1. Backup switch IOS file: copy the IOS file to the tftp host in privileged mode.
Switch # copy c3750e-universalk9-mz.122-44.SE2.bin tftp: // 192.
, 7200 of the business module can be used on 75, need a piece ofVIP card support.On top of that is the 12000 series: 12008,12016 These are currently the highest end. It is also necessarySupport for engine and business modules.Swap: The name of the switch is usually the WS beginning this is fixed, and then the next letter has two kinds of oneIs the C one is x,c represents the curing switch or chassis, X represents the module. Like seeing ws-.When we c3750
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