Pen name is also large, commonly known as the small gameRecently work has become a little different, received their own network engineers exam is almost 2 doors are nearly point on the heart has a lot of depressed and lost, may be doomed to let me have a good reflection on it, for this today self-study review of the past Cisco Cisco Simple Foundation.Cisco commands and H3C are far apart, recalling that
. Even if someone intercepts the data, they cannot obtain useful information. At the same time, data is compressed, which greatly speeds up transmission.
2. How to set up the SSH service on the routing switch device:The following describes how to configure the SSH service on a CISCO router. The author uses GSR 12008, s
Cisco switch password settings www.2cto.com 1. set console password> enable # configure trminal (confing) # line console 0 secure console port ① (config-line) # password (cisco) Secure password (config-line) # login logs must not be small. console Password settings complete exit 2: set the global password www.2cto.com
CISCO 3750 Dual Switch stack operation, cisco3750 dual
Double switch stack operation
I. Basic Requirements:
The ios version must be consistent with the dedicated stack module and stack cable, and the maximum number of stacks is 9.
Ii. Stack advantages:
High-density ports, easy to manage, and stacked switches can be regarded as a unified configuration of a
, and the slot number is different)
Iii. Stack instances:
1: The stacked cables are physically connected. The connection method is master stack1, which is connected to slave stack2.
2: enable the master without any configuration. .
3: Server Load balancer is enabled.
4: No configuration is required. Line plug, automatic stacking election upon startup, master is highlighted)
Note: You can also configure stacks first, such as IP addresses and priorities
1. Unplug the power cord of the vswitch, press the switch Mode button, and re-plug the power cord of the vswitch. Release the Mode button after the LEDs on Port 1x are off.
2. For the Catalyst 2940/2950 L series:
Unplug the power cord of the switch, hold down the Mode button of the switch, and re-plug the power cord of the sw
-sa4 drwx 3776 Mar 1993 01:23:24 HTML66-rwx 1970 00:01:19 Env_vars68-rwx 1296 Mar 1993 06:55:51 Config.text 1728000 Bytes Total (456704 bytes free)6, switch>rename flash:config.text flash:config.old 7. switch>BootAfter renaming the configuration file, type the boot boot device under Switch>, and when the system starts to set, press N and when the setting is compl
After using the Console port to set IP address information for the switch and enable the HTTP service, you can access the switch through a Web browser that supports JAVA, you can modify the parameters of a vswitch through a Web browser and manage the vswitch. In fact, you can modify and set many important parameters of a vswitch on the Web interface, and view the
Access-enable allows routers to create temporary access list entries in the Dynamic access list
Access-group applies access control lists (ACLs) to interfaces
Access-list defines a standard IP ACL
Access-template manually replace the temporary access list entry on the attached router
APPN send commands to the APPN subsystem
Atmsig Execute ATM Signaling command
B manually boot the operating system
Bandwidth set the bandwidth of the interface
Ba
, the first file is not the correct iOS file, the second is the correct iOS file. It's a lot easier.
Set the startup mode to 2 with the Confreg command, and then manually boot from the correct iOS:
Rommon 2 >boot Bootflash:cat4000-is-mz.121-11b.ew
Rommon reg:0x30004180
Running diags ...
...
When the boot is finished, enter the iOS interface and modify the startup parameters:
Switch>enable
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
Tags: Cisco switchBasic configuration and management of switches• Technical Principles• The switch is managed in two basic ways: in-band management and out-of-band management.• The console port management switch through the switch is out-of-band management, which does not occupy the network 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
to say, after you set the password for level 1, you will be asked to enter the password next time you connect to the switch and enter K, this password is the password set for level 1. Level 15 is the privileged mode password that you enter after you enter the enable command.
Step 2: Set the VLAN name. Because the four VLANs belong to different switches, the command for VLAN naming is VLAN 'vlan No. 'name'
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 file nameSteps:1. Power off first2. Power off while holding down the mode key on the
Lab Environment:650) this.width=650; "alt=" Cisco Packet Tracert three-tier switch VLAN configuration-Ibm.chick-mingkang.zhou "src=" Http://img2.ph.126.net/2N Qfixjyba1gdiqtbuknhq==/6630601572768576164.png "style=" border:0px;height:auto;margin:0px 10px 0px 0px; "/>Experimental Purpose:1, the three layer switch divides three VLANs, is Vlan2\vnal3\vlan4, and the V
Use a cisco router to simulate how to configure a frame relay switch (configure 3640 as a frame relay switch): 3640 (config) # frame-relay switching ---------------------- enable the frame relay switching function of the router 3640 (config) # int s0/0 ------------------------------------- enter the s0/0 interface 3640
The combination of Huawei S2000-HI switch and cisco acs for certificationCase: Huawei S2000-HI switch and cisco acs combined certification I. Networking requirements: a company's internal network adopts unified management, send the authentication tasks for accounts and passwords of all devices to the Radius server (ACS
Layer-3 Switch for Cisco switches
Although single-arm routing solves the communication problem between different VLANs, it also has its fatal defects:
-The single arm itself is the Backbone link of the network, which is easy to form a network bottleneck.
-The sub-interface relies on physical interfaces, and the application is not flexible
-You need to view the route table for each vlan forwarding, wasting
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.