From a design point of view it was broadcast and control traffic can overwhelm the network crazy bad idea. In real-world production of multiple access network (such as Ethernet and you will find when you take the previous host for a given subnet 400+, can degrade network performance. 24 is the most common network size can resolve the 254 available IP address of the host's subnet mask.
How to create a network larger then 400+ node? Answer is actually quite simple 4 letter abbreviation is called VLAN. Virtual local area network in the most simple terms partition a physical switch into multiple independent local area network so that traffic on one VLAN cannot communicate with another VLAN traffic unless it's a router. As a 2nd tier network isolation, can easily explain the VLAN and the 3rd layer of isolation as a subnet will be discussed at the 6th Festival.
To create a layer 2 VLAN control are the key factors in a given network segment size, in order to broadcast and control traffic and exposure in a given network segment.
Free CCNA SW1 Binder GNS3 topology processing, please keep in mind that SW2 and SW3 NM 16ESW switch module with Cisco 3,640 series routers. Of this switch module configuration, the Cisco Catalyst series switches. Router to configure VLAN nm -16ESW module installed, you will need to create a VLAN in the VLAN database configuration mode. Keep in mind that the VLAN database configuration mode is now depreciated in newer Cisco switches and Cisco IOS software on the exchangers create VLAN global configuration mode using the VLAN# name VLAN_NAME command now.
In addition please note that verifying NM 16ESW switch configuration commands are slightly different, and then the catalyst switch running Cisco IOS. Recommended buying Cisco Catalyst switches 2950 g, or preferably 3,550 in order to familiarize yourself with the command on the Catalyst switch.
In this lab, you will familiarize yourself with the following command;
Lab Prerequisites:
Than load if you use GNS3 CCNA free Binder GNS3 topology than the starter, SW1.
Establish SW1 than configuring a device with the device console session respects the hostname (s).
Lab Instruction:
Step 1. On SW1 create VLAN 3. To name a sales VLAN 10, VLAN 20 and VLAN 30 marketing name.
To achieve this goal by using GNS3, you need to go to the VLAN database configuration mode use the VLAN database command in privileged mode. VLAN in the VLAN configuration mode number name vlan_name database command can be used to create a VLAN.
SW1 con0 is now available
Press RETURN to get started.
SW1>enable
SW1#config terminal
Enter configuration commands, one per line. End with CNTL/Z.
SW1(config)#vlan 10
SW1(config-vlan)#name Sales
SW1(config-vlan)#vlan 20
SW1(config-vlan)#name Development
SW1(config-vlan)#vlan 30
SW1(config-vlan)#name Marketing
SW1(config-vlan)#end
SW1#
Step 2. Assign port Fa0/1 interface Fa0/2 and assign a VLAN interface VLAN 10,VLAN 20 Fa0/3 30. Then check the configuration.
Switch port VLAN you want to configure a specific interface will use switch port access VLAN# in interface configuration mode. To verify that you use VLAN switches displayed when configuring NM16 ESW VLAN or VLAN configuration on the Cisco Catalyst series shows that consumers or privileged mode, as shown below on the catalyst switch series.
SW1#configure terminal
SW1(config)#interface Fa0/1
SW1(config-if)#switchport access vlan 10
SW1(config-if)#interface Fa0/2
SW1(config-if)#switchport access vlan 20
SW1(config-if)#interface Fa0/3
SW1(config-if)#switchport access vlan 30
SW1(config-if)#end
SW#show vlan
0 comments:
Post a Comment