hi! If i want to allow only vlan 100-105 to go through a trunk between 2 switches. Do i need to remove the existing vlan from the trunk first(default all vlan are allowed) and then add in vlan 100-105? or just issue the command "switchport trunk allowed vlan 100-105"? Please advise. Thanks.
You can only use" switchport trunk allowed vlan "command to achieve the same. You need a combination of switchport allowed/remove commands only when you want to remove some of the vlans from the trunk and allow some of the vlans simultaneously.
Native vlan is enabled on Cisco switches by default and Vlan1 is the native vlan. The native vlan is used to carry untagged frames across a trunk link.You will not be able to form a trunk if the native vlan is different on the trunk links. They have to be same on both the sides.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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