The Fabric Attach topology type allows an AP to attach to a Shortest Path Bridging (Fabric Connect) Network. The client component on the AP communicates directly with the server on an edge switch (or it can communicate with the server through a proxy) to allow the AP to request VLAN to I-SID (backbone Service Identifier [IEEE 802.1 ah] mappings). The Fabric Attach topology type is similar to B@AP with the added I-SID parameter. Fabric Attach can be configured on the ExtremeCloud IQ Controller anywhere a B@AP topology can be configured.
Note
When Fabric Attach is configured, LLDP (Link Layer Discovery Protocol) is automatically enabled on all APs associated with the topology. The setting cannot be disabled by users.The switch requires that the VLAN/I-SID mapping is unique per port per switch, therefore only one AP per switch port is allowed.
ExtremeWireless APs connected to a Fabric-enabled switch automatically use the default management VLAN that is configured on the switch. Moving an AP from a Fabric-enabled switch to a non Fabric-enabled switch requires a factory default reset to connect to the new management VLAN.
Note
In a mobility scenario that includes a local and foreign ExtremeCloud IQ Controller, make sure the Fabric Attach topology configuration is the same on each ExtremeCloud IQ Controller, ensuring that an AP that moves between appliances has the same set of topologies.
