Access modes of VSIs
The access mode of a VSI determines how the VTEP processes the 802.1Q VLAN tags in the Ethernet frames.
VLAN access mode
In this mode, Ethernet frames received from or sent to the local site must contain 802.1Q VLAN tags.
For an Ethernet frame received from the local site, the VTEP removes all its 802.1Q VLAN tags before forwarding the frame.
For an Ethernet frame destined for the local site, the VTEP adds 802.1Q VLAN tags to the frame before forwarding the frame.
In this mode, VXLAN packets sent between sites do not contain 802.1Q VLAN tags. You can use different 802.1Q VLANs to provide the same service in different sites.
By default, the access mode of a VSI is VLAN. The following sections describe traffic forwarding processes in VLAN access mode.
Ethernet access mode
The VTEP does not process the 802.1Q VLAN tags of Ethernet frames received from or sent to the local site.
For an Ethernet frame received from the local site, the VTEP forwards the frame with the 802.1Q VLAN tags intact.
For an Ethernet frame destined for the local site, the VTEP forwards the frame without adding 802.1Q VLAN tags.
In Ethernet access mode, VXLAN packets sent between VXLAN sites contain 802.1Q VLAN tags. You must use the same VLAN to provide the same service between sites.