access vlan 51/trunk allowed vlan 51

[karimbruxelles]

Hi,

Can someone help regarding this

what is the difference between those 2 commands? on a lab I have been asked to do exactly the same things on two different switch however I failed and apparently the question was the same but one of the switch is on the access-layer and the other in the distribution layer!

1-(config-if)switchport access vlan 51

2-(config-if)switchport trunk allowed vlan 51

Please assist

thx

[pkhatri]

Hi,

The first command is used on an access port and basically associates all traffic on that port with VLAN 51.

On the other hand, the second command is used on a trunk port to explicitly enable it to carry VLAN 51. By default, trunks will carry all VLANs unless you explicitly dis-allow certain VLANs.

Hope that helps - pls rate the post if it does.

Paresh