1 Abstract: Routers are unable to scale to the explosive growth of the Internet traffic. This is mainly due to the amount of processing required to forward IP packets. IP switching techniques avoid the IP layer by forwarding packets at the link layer. The current IP switching techniques suffer from problems like label explosion, inefficient label stacking and fragmentation. The proposed method ...

Optical burst switching (OBS) has been proposed as a switching technique to exploit enormous amount of capacity provided by wavelength division multiplexing (WDM) transmission technology. In this paper, we consider a model for overlaying IP network over the OBS WDM transmission backbone. In the framework of this model, the functional requirements of the interface between the IP layer and the OB...

Optical Burst Switching (OBS) can cater the requirements of bandwidth intensive applications like Voice-over-IP, video conferencing, interactive video on demand. It is switching technique for the next generation optical networks. This paper deals with merits and the protocols used for the Optical Burst Switching. A brief survey of QoS open research issues for TCP/OBS connections is also discussed.

Increasing number of Internet users forced them to use popular services, television and telephone, to use the Internet as a medium to reach their customers. Organizations are now applying VoIP and MPLS for providing the convergence of voice and data communications over single network infrastructure. VoIP (Voice over Internet Protocol) usage all over their branches, this reduces a huge amount of...

LSR(Label Switching Router)s in MPLS (Multiprotocol Label Switching) networks map arriving IP flows into some labels on Layer 2 switching fabric and establish LSP(Label Switching Path)s. By using LSPs, LSRs can not only transmit IP packets fast with cut-through mechanism, but also solve traffic engineering issue to maximize resource utilization in the whole MPLS networks. So far, we have analyz...

Label Switching Routers (LSR), such as IP switching of Ipsilon, use separate Virtual Circuits (VC)from different sources even having the same destination. Merging switches, on the other hand, allow multiple VCs of upstream traffic to use a single output VC if having same destination criteria. In this paper, we study IP switching of Ipsilon and identify certain security threats. We found that os...

With the introduction of Generalized multiprotocol label switching in the common control plane for optical crossconnects and electrical switching devices, the integration of IP and dense wavelength division multiplexing can be efficiently achieved. When IP traffic flows are directly mapped to optical channels without SDH inter-layer, the bursty nature of IP traffic may have significant effect o...

Research on email, voicemail, and instant messaging highlights the extent to which conversations often consist of multiple messages exchanged over a fairly extended period of time, using more than one communication medium. This research in progress explores the impact of increasing availability and integration of communication tools on media switching practices, which is the act of changing med...

IP traffic on the Internet and private enterprise networks has been growing exponentially for some time. This growth is beginning to stress the traditional, processor based design of current day routers. Switching technology offers much higher aggregate bandwidth but presently only offers a bridging solution. Various proposals are under way to support IP routing over ATM switching technology; h...

ATM switches have been proposed as the switching fabric cores of many high-performance IP switches. In this paper, we present an efficient algorithm called IPPIM for scheduling variable-length IP packets on these switches and compare its performance with the original parallel iterative matching (PIM) ATM cell scheduling algorithm. The mean IP packet delays using both the PIM and the IP-PIM sche...