In this paper, two novel protection and restoration schemes were proposed by using the BC and BR schemes which were originally designed to reduce the bursts loss probability due to contention in OBS network. The 1+1 protection scheme in LOBS can be easily carried out using the MPLS 1+1 protection scheme in the 2.5 layer and burst cloning scheme in the OBS layer. By introducing some new OSPF-TE opaque LSA messages, the burst retransmission scheme can be transplanted into the restoration scheme in LOBS network. Furthermore, the dynamic quality of resilience mechanism to inherit these two schemes according to the QoS requirement of the traffic was also investigated. Experimental study using a LOBS network test bed verified that the proposed schemes suited well in the LOBS network.
The interworking network of Generalized Multi-Protocol Label Switching (GMPLS) and Optical Burst Switching (OBS)
is attractive network architecture for the future IP/DWDM network nowadays. In this paper, OSPF-TE extensions for
multi-domain Optical Burst Switching networks connected by GMPLS controlled WDM network are proposed, the
corresponding experimental results such as the advertising latency are also presented by using an OBS network testbed.
The experimental results show that it works effectively on the OBS/GMPLS networks.
In order to enable the existing optical circuit switching (OCS) network to support both wavelength and subwavelength
granularities, this paper proposes overlay-based multi-layer network architecture for interworking the generalized multi-protocol
label switching (GMPLS) controlled OCS network with optical burst switching (OBS) networks. A dedicated
GMPLS border controller with necessary GMPLS extensions, including group label switching path (LSP) provisioning,
node capability advertisement, and standard wavelength label as well as wavelength availability advertisement, is
introduced in this multi-layer network to enable a simple but flexible interworking operation. The feasibility of this
proposal is experimentally confirmed by demonstrating an OBS/GMPLS testbed, in which the extended node capability
advertisement and group LSP functions successfully enabled the burst header packet (BHP) and data burst (DB) to
transmit over a GMPLS-controlled transparent OCS network.