Native Vlan

[rcasta]

Perhaps it's a nonsense question, though I'd like someone at this forum to explain (as if I were 4 =) ) what exactly is Native vlan !! (I think it's not the same as default vlan , isn't it?) ..what is it for ...if not defined then what?? and lastly, how to know what ID or which Vlan to assign as native vlan.

thank you in advance !

 

[doherth]

A good question....I guess you already know the definition, "native VLAN" refers to a VLAN whose frames are NOT encapsulated with tagging information under 802.1Q trunking rules. Further questions would be, without vlan id, would it be trunked at all?
Also, with pruning, would any segments be reponsive? Could a host or a probe be placed on the trunk and be used for monitoring, logging, or debugging etc?
tom