Description:
This clarifies the confusing area of TIM and VLAN tagging.
Solution:
VLAN tagging allows switches to filter traffic at multiple levels.
Current TIM design supports VLAN tagging for "802.1Q Tag" case (i.e. IEEE 802.1Q,
More details about its format/spec can be found at http://en.wikipedia.org/wiki/IEEE_802.1Q#Frame_format).
Not supported is VLAN tagging for "802.1ad DoubleTag" case (i.e. IEEE 802.1ad,
More details about its format/spec can be found at http://en.wikipedia.org/wiki/802.1ad#Frame_format).
Note the non-TIM side of MTP supports this. TIM may support this in a future release.