Data-triggered UE creation

Like data-triggered UE creation with ESM, a DSM UE can also be created based on data-triggered authentication discussed in Data-triggered subscriber creation. The decision to create ESM versus DSM UE is based on the value of RADIUS VSA Alc-Wlan-Ue-Creation-Type present in the access-accept message. The data-triggered authentication and UE creation if configured provides for WLAN-GW IOM redundancy. The DSM UE is created on the standby ISA based on successful data-triggered authentication. Also, inter-chassis redundancy is supported for DSM UE based on data-triggered authentication and is identical to ESM (as described in Data-triggered subscriber creation).