The Ethernet tunnels are supported Layer 2 service VLL, VPLS and B-VPLS instances. The following considerations apply:
Only ports in access or hybrid mode can be configured as eth-tunnel path members. The member ports can be located on the same or different IOMs or MDAs.
Dot1q and QinQ ports are supported as eth-tunnel path members.
The same port cannot be used as member in both a LAG and an Ethernet Tunnel but LAG emulation is supported.
A mix of regular and multiple eth-tunnel SAPs and pseudowires can be configured in the same services.
Split horizon groups in VPLS and BVPLS are supported on eth-tunnel SAPs. The use of split horizon groups allows the emulation of a VPLS model over the native Ethernet core, eliminating the need for P-MSTP.
LAG Emulation offers another method offering MSTP or P-MSTP over Ethernet Tunnels.
MC-LAG access multi-homing into services is supported in combination with Ethernet tunnels.