complete, you can use the "show vlan #" command to display a specific vlan information and verify VLAN parameters. For example:Switch # show vlan 3
2. configuration of multiple switchesTo allow a VLAN to span multiple switches, you must configure the trunk (trunk) to connect to these switches. Cisco requires that trunk protocols such as ISL be used on such trunk links, so the command to enable trunk protoc
I found some posts about Cisco nav-10 WF configuration port forwarding sent by China Telecom Business pilot online, but it seems that one post said that later China Telecom gave him a newProgram, The Flash is normal. Later, he did not post the program. I found some information about business pilot. If you need to study it in depth, you can go and see:
Router the latest version of the program download: nav
domain COM settings vtp admin domain name com
PAR2 (VLAN) #vtp client to set the switch to clients mode
Par3#vlan database into VLAN configuration mode
PAR3 (VLAN) #vtp domain COM settings vtp admin domain name com
PAR3 (VLAN) #vtp client to set the switch to clients mode
Note: Setting the switch to server mode is to allow the creation, modification, deletion of VLANs and other configuration parameter
Vswitch span technology Overview + Cisco configuration example
1. Introduction to span
The span technology is mainly used to monitor data streams on vswitches. It can be divided into two types: Local span and remote span.---- Local Switched Port Analyzer (SPAN) and remote span (rspan) have slightly different implementation methods.
Using the span technology, we can copy data streams or mirror 1 on some vswi
How to back up configuration files for Cisco, ruijie, And Juniper Devices
For a company of a certain scale, network device configuration file backup is also a task that cannot be ignored, to prevent one day after your network device fails, you can recover in the shortest time, reduces losses for the company.
The following describes the backup operations for sever
In Cisco command configuration tip 1, we talked about using the Range Command to simplify our configuration.
However, if we often operate on a group of discontinuous ports
Such as interface-range fa1/1, fa1/3, fa1/5, fa1/7, fa1/11
Even using the Range Command is cumbersome.
We always think that the simpler the better (there are more commands, and the
Router> Router>enable Router#configure Terminal Router (config) #archive Router (config-archive) #path Backup Destination address/Backup build file name Router (config-archive) #write-memory Example: Router (config-archive) #path flash:/ Backup destination path/$h-config Router (config-archive) #path ftp://IP address/$h-config Router (config-archive) #write-memory Where: The URL path of ' $h ' is automatically replaced with the hostname. "$h-config" is the base file name, and the parameters are
This article mainly introduces the firewall security configuration for CISCO router IOS, and describes the NAT conversion function. I believe you have read this article to understand CISCO router IOS.
Network security technologies include authentication and authorization, data encryption, access control, and security audit. The following types of security gateway
Cisco AnyConnect, under Ubuntu configuration
Windows/mac/android/ios can be downloaded to the Cisco website AnyConnect software, all have visual software can be used.Linux can be connected to a Cisco VPN with VPNC.
sudo apt-cache search VPNC
You can see that a number of related packages have been returned. One of the
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' vlan name ', the following code configures VLAN 2, VLAN 3, VLAN 4, and VLAN 5 on the Switc
provided by the post office. Otherwise, packet loss may occur.
3. leased line configuration
# Conf t
# Ints2 (specifying S2 ports)
# Ip addr abcd xxxx (ABCD is an IP address of S2 and XXXX is a subnet mask)
# Exit
After the leased line port is configured, use the no shutdown command to activate the S2 port.
4. Frame Relay Configuration
# Conf t
# Int S0
# Ip addr abcd xxxx (ABCD is an IP address
1. Commands supported by the switch:Switch Basic Status:Switch:; Rom status, router is rommon>hostname>; user modehostname#; privileged modeHostname (config) #; global configuration modeHostname (CONFIG-IF) #; interface StateSwitch Password settings:switch>enable; Enter privileged modeSwitch#config terminal; Go to global configuration modeSwitch (config) #hostname, set the hostname of the switchSwitch (conf
After the new switch is bought, all need to be simple configuration to meet the unit network operation, after the configuration of the device will need to put it where it should be placed, but in the future we need to view or modify this device, we need to use remote login to configure it. Let's talk about the specific configuration of remote login.First, you nee
3.1 LAN switch configuration overview
Shared Ethernet, physical address, conflict domain, broadcast domain. Bridging, switching, MAC address table, VLAN. VLAN relay, and VLAN relay protocols. The concept of Spanning Tree Protocol is particularly important. This section briefly introduces these concepts.
Shared EthernetShared Ethernet is an Ethernet built on a bus topology. You can directly connect a computer to a shared Ethernet using a thin or crude
The following is the VOIP configuration of Cisco 3640. The structure is VOIP between Taipei and Shanghai, followed by Alcatel's PBX. There are many things to note.
Taipei configuration code:
Taipei # sh runBuilding configuration... Current configuration :! Version 12.0 serv
This article uses VPN technology to achieve interconnection between two parts of the network, simulate ISP, close to practicality, the article mainly shows us the specific operation steps, mainly the input of basic commands.
In this experiment, we use the Cisco 2600 router and VPN technology to achieve the network interconnection between one branch and two parts. To stay close to practicality, we still use Cisco
Cisco switch VLAN interface IP Address Configuration 1. vswitch VLAN Interface static IP Address Configuration switch VLAN Interface static IP Address Configuration function requirements and networking description "Configure Environment Parameters" www.2cto.com 1. switchA is a layer-3 switch. the Ethernet port E0/1 con
In the network operation, we will often take over some of the second-hand equipment, interface configuration needs to restore factory settings. I'll share it with the guys today. The Cisco Device Interface Configuration Cleanup command The default interface interface ID number, here is a Cisco router for example, to sh
China Mobile's GPRS network uses the APN method to connect to the GPRS device terminal and communicate with the server through the APN. The customer purchased the Cisco 2811 router, and the mobile company needed to pull the optical fiber through the E1 port, I spent more than 1000 RMB with an E1 module. mobile companies are doing very poorly, and optical fiber connectors are not provided at all. I also bought a switch for xxrmb, after a successful cal
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