In the context of dynamic telecommuni-cation traffic requirement, experimental prototypes and testbeds have been vital and challenging steps towards achieving practical OBS networks. This paper presents the novel integrated LOBS/GMPLS network testbed. Dynamic interworking technolo-gies between GMPLS network and LOBS network and potential survivability schemes in this multi-layer network are investigated by experimentally evaluating the TCP and popular streaming media service performance over an integrated LOBS/GMPLS testbed.