Unidata LDM is being evaluated as the transport mechanism between Data Providers and Archive Centers. So far, the tests are encouraging.
The LDM software can be downloaded from here, and see below TIGGE specific implementation suggestions that have proven successful for exchange between ECMWF and NCAR.
TIGGE data exchange protocol
In order to exchange data between TIGGE partners, a protocol build on top of LDM as been established. It is described here. You may choose to implement the protocol yourself or use a series of scripts which can be found there.
Information about how to configure LDM for the TIGGE data exchange is described here.
Global LDM statistics are collected real-time. The global topology can be found here and the statistics from the TIGGE Centers and participants....