switch(config)#int type <no> switch(config-if)#switchport mode trunk switch(config-if)#switchport trunk allowed vlan all/vlan no switch(config-if)#exit switch(config)#exit switch#
VLAN 1 is the management VLAN. All switch ports are members of VLAN1.
The distinct type of VLAN used by an administrator to access and configure a switch is called the "Management VLAN." This VLAN is specifically designated for management traffic, allowing administrators to connect to the switch for configuration purposes. Typically, it is assigned a specific VLAN ID and is separate from user data traffic to enhance security and manageability.
the switchport access vlan 99 command is used to designate a specific VLAN for a switch port, allowing you to control how traffic on that port is treated and segregated from traffic on other ports and VLANs in the network. This is a fundamental configuration step in building and managing VLANs within a network infrastructure.
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VLAN
NVRAM
no vlan XXX copy run star
1) reset the revision number before installing. 2) have a backup switch with existing VLAN data.
The command "shutdown vlan 17" is used in network configuration to disable VLAN 17 on a network switch. When executed, it effectively prevents any traffic from being forwarded through this VLAN, rendering it inactive. This can be useful for network management purposes, such as troubleshooting or reconfiguring the VLAN. To reactivate the VLAN, the command "no shutdown vlan 17" would be used.
A VLAN is a virtual LAN. In technical terms, a VLAN is a broadcast domain created by switches. Normally, it is a router creating that broadcast domain. With VLANs, a switch can create the broadcast domain. This works by, you, the administrator, putting some switch ports in a VLAN other than 1, the default VLAN. All ports in a single VLAN are in a single broadcast domain. Because switches can talk to each other, some ports on switch A can be in VLAN 10 and other ports on switch B can be in VLAN 10. Broadcasts between these devices will not be seen on any other port in any other VLAN, other than 10. However, these devices can all communicate because they are on the same VLAN. Without additional configuration, they would not be able to communicate with any other devices, not in their VLAN.
Switch is faster than HUB. If you are using managed switch you can create VLAN, you can secure ports and many other things.