Dear Sir --ISL don't not support native VLAN . when Management traffic will come will that go tagged or untaged.---if tagged then which VLAN tag will be added to it. How will go VTP , DTP , STP traffic will go in that case?

Dear Yogesh,

In case of ISL Encapsulation all traffic is tagged. All control plane traffic is also tagged because if we use ISL then on both end of trunk ISL is

defined so all control plane traffic is go via vlan 1 tag by default.

Hope i addressed all your queries.

Have a nice day.