With the C-VLAN UNI feature, I-SID-to-VLAN mappings must be unique across the network. With the Transparent Port UNI (ELAN Transparent) feature, you can map an entire port or MLT to an I-SID.
With the Switched UNI feature, you can associate many different C-VID/port or C-VID/MLT list combinations to a single I-SID.
FA brings the capability of automatically creating Switched UNI I-SIDs on a switch, without manual intervention. The I-SIDs thus created are ELAN I-SIDs with endpoints of type Switched UNI, and are by default for Layer 2. MAC learning takes place and there is an any-to-any relationship. For Layer 3 participation, you must configure a platform VLAN with the same I-SID value as that of the I-SID in a learned FA mapping.
Note
The number of Switched UNI I-SIDs created are different for different product families. For more information, see Fabric Engine Release Notes.
An FA-created Switched UNI I-SID is always ELAN.
You cannot enable BPDU on an FA-created Switched UNI I-SID.
The ELAN I-SIDs created are by default for Layer 2. For Layer 3 participation, you must manually configure a platform VLAN with the same I-SID value as that of the I-SID in a learned FA mapping. You can configure the platform VLAN with the same VLAN ID as that of the C-VID, or use a different value.
The Switched UNI (ELAN) I-SID cannot be used by IPVPN, MVPN, SPBM dynamic multicast range, or a T-UNI.
You cannot change from one UNI type to another dynamically. The I-SID must be deleted and created with the new UNI type (Customer VLAN (C-VLAN), Transparent Port user-network-interface (T-UNI), ELAN).
If the port is a member of an MLT, you must add the entire MLT to the C-VID.
The port is always in the forwarding state.
You cannot associate a port or MLT with more than one C-VID in the same I-SID.
The same C-VID, port or MLT cannot be a member of more than one I-SID. Different hardware platforms support different customer C-VID ranges. The value 4095 is not supported and cannot be configured. The value 4096 indicates that the port is untagged.
An I-SID value of 0 is not supported on the FA Server.