How to add a VLAN to the allowed list?

How to add a VLAN to the allowed list?

You have to already have a VLAN in the allowed list (not “all”) before you can use the add command to append to the existing list. So, first, use: switchport trunk allowed vlan 52 Then you can use: switchport trunk allowed vlan add 160,176,177,247

Can you add a VLAN to the trunk?

If you remove the addkeyword, then you simply set the allowed VLANs on the trunk to those in your command. You only use the addkeyword to add VLANs to an already restricted list. The default list is all VLANs, so the addkeyword does nothing. Leaving out the addkeyword will simply restrict the trunk to those VLAN in the command.

How to assign a VLAN as an access port?

To know how to assign an interface VLAN as an Access or Trunk port through the web-based utility of the switch, click here. 1. Create the VLANs. To learn how to configure the VLAN settings on your switch through the web-based utility, click here. For CLI-based instructions, click here.

What can be done with a VLAN interface?

Unicast, broadcast, and multicast packets are forwarded and flooded out ports in the same VLAN. VLANs can also be used to enhance performance by reducing the need to send broadcasts and multicasts to unnecessary destinations. It also eases network configuration by logically connecting devices without physically relocating those devices.

Where is the vlan.dat file stored in NVRAM?

Switch (config)# vtp file vtpconfig Setting device to store VLAN database at filename vtpconfig. Switch (config)# The vlan.dat stored in NVRAM alone can be accessed by the switch. The vlan.dat file can be copied from its location for backup purposes. The memory location name where the vlan.dat file is stored varies from device to device.

Can a VLAN be added to a trunk link?

When a trunk link is established, all of the configured VLANs are allowed to send and receive traffic across the link. VLANs 1 through 1005 are allowed on each trunk by default. However, VLAN traffic can be removed from the allowed list.

How to define the VLANs allowed on a TR?

To remove VLANs from the allowed VLANs list for a trunk, issue the clear trunk mod_num/port_num vlans command. To add specific VLANs to the allowed VLANs list for a trunk, issue the set trunk mod_num/port_num vlans command. To verify the allowed VLAN list for the trunk, issue the show trunk mod_num/port_num command.