change hostname cisco switch

Cisco switch status lights are all available on the front panel of the Cisco switch and are used to monitor system activity and performance. These LEDs are called LEDs ).The indicators on the front panel include: · system indicator www.2cto.com · remote power supply indicator · port mode indicator · Port Status Indicat

data from the next time.#第一次提示OK ..., enter this command again after 30 seconds[Email protected] ~]#/usr/local/nagios/libexec/check_traffic.sh-v 2c-c public-h 192.168.5.209-i 10001-w 200,300-c 400,500-k-BOk-the traffic in are 1.00KB, out are 0.62KB, Total is 1.62KB. The Check Interval is 46s | In=1.00kb;200;400;0;0 Out=0.62kb;300;500;0;0 Total=1.62kb;500;900;0;0 Interval=46s;1200;1800;0;04. Add the check_traffic command in Commands.cfg (added in monitoring Windows traffic)650) this.width=650; "

CISCO mds FC optical fiber switch configuration reference(1) There are several concepts that must be clarified (different from brocade ):(1) brocade divides zones directly. While mds divides zones under vsan, mds can divide several vsan first, and each vsan includes several zones.(2) brocase: the default port is open, while the default port of mds is closed.(3) mds has a Default zone: "The Default Zone ". i

Tags: Cisco configuration switch Management address and default gatewayConfigure the switch remote management address and default gatewayThe topology diagram is as follows:650) this.width=650; "Src=" Https://s1.51cto.com/oss/201710/29/1b8f7b6af37801733cf03704e748d09a.png-wh_500x0-wm_3 -wmp_4-s_475699717.png "title=" 57.png "alt=" 1b8f7b6af37801733cf03704e748d09a.

are all specified ports, and on each network segment, select a specified port.Specify the port selection order on the non-root bridge:The root path cost is lower > The value of the bridge ID of the switch is minimal > The value of the port ID is minimal.Finally, a logical structure without loop topology is formed.BPDU Bridge Protocol Data unit:BPDUs send BPDUs using group advertisements.There are two types of BPDUs:Configure BPDUs.Topology

and a switch are connected with the console lineHow it works: Switch password recovery fundamentals: Change the Config.text file name in the switch to a different file name, and then enter the configuration mode to change the password, and finally restore the Config.text fi

A Cisco 4506 switch in the user's actual environment could not log on, and the system could only be cracked because the maintenance staff did not remember the modified password.Environment:Cisco Catalyst 4506E switch, engine for WS-X45-SUP8-E, system version is cat4500es8-universal-mCrack steps:To restart the switch, p

One outlet had poor contact. Because there was no wiring module, I just fixed the wiring block and the network was ready for use. After a week, the network was broken again and I asked another colleague to change the wiring module, as a result, my colleague told me that changing the wiring module would not work, and the network would still be disconnected. I thought it was strange. I told him that the Network was originally accessible, but the wiring

I will talk about two tips, one about monitoring switch port traffic and the other about store value. 1. Monitor switch port traffic Switch monitoring document in the production environment on the Internet. Therefore, it is complete, and a key knowledge is interspersed in the middle. Zabbix is still innocent .!!! In this demonstration, I used the production envir

iOS supports SSH for high-end products such as the 7200 series, 7500 series, and 12000 Series (GSR) in the Cisco routers product family. The iOS version of the general support SSH file name is K3 or K4 words, K3 for 56bit SSH encryption, K4 represents 168bit SSH encryption. iOS like my provincial network GSR 12016 and 12008 is a version that supports 56bit SSH encryption. Cisco's products currently support only SSH-1 and do not support SSH-2. The foll

relay mode on the port connecting a switch to a vswitch or connecting a vswitch to a vro, this enables data frames belonging to different VLANs to be transmitted through this relay link. The frame format of VLAN relay is divided into two types: ISL (Inter-Switch Link, connection between switches) and 802.1Q. The former is the protocol unique to the Cisco

want to initialize the switch, you need to enter the Privileged EXEC mode. Enter setup in the command prompt symbol to start the initialization operation.The Privileged EXEC mode is introduced just now. In this case, we need to talk about several modes of machine change. Different modes can execute different operation commands. First, we need to talk about two basic modes.For the sake of security,

9148 Common configuration of fiber switchesSwitch Basic configuration1. Configure the switch nameswitch# Config TerminelSwitch (config) # switchname SwitchA2. Configure the management IP address of the switchSwitch (config) #Switch (config) # interface Mgmt 0Switch (config-if) # IP adress 192.168.100.10 255.255.255.0Switch (config-if) # no shutdownInterface Mgmt 0 represents the management port of the

interruptRommon 1 > "Interrupt"2.2go in Rommon mode start using the command configuration as follows Step:Rommon 1 > Confreg Choose y or N below the word bad I'll tell Y or N in the order of choice. Excuse me. The order is as follows: 1. Y 2.N 3.N 4.N 5.N 6.N 7.Y 8.N 9.N 10.N650) this.width=650; "style=" Float:none; "title=" 123.png "src=" http://s3.51cto.com/wyfs02/M02/71/37/ Wkiom1xjr8dtoehaaagcy3dy9aw290.jpg "alt=" Wkiom1xjr8dtoehaaagcy3dy9aw290.jpg "/>650) this.width=650; "style=" Float:non

Whether it's on a Cisco router or a network device such as a Cisco switch, the standard ACL access control list is always unable to match both the traffic source address and the destination address, nor does it meet the requirements of the "granular" control of the current network world, such as: A service function that allows access to a server, However, pinging

Cisco 3550 switch stp learning notes STP (Spanning Tree Protocol) (IEEE 802.1D) Spanning Tree Protocol-review the working principles of SW: 1. the frame it forwards cannot be modified. create a MAC-PORT ing table based on source MAC learning. forward the frames in the target MAC ing table directly from the corresponding port. for frames without target MAC ing/Target wide (Group) broadcasting, SW learns diff

Basic ConfigurationS> enable access to privileged modes# configure terminal into global configuration modeS (config) # hostname name change switch nameS (config) # Enable password level level_# password set user password (level_#=1) or privileged password (level_#=15)S (config) # line console 0 enters the console interfaceS (config-line) # password Console_passwo