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IMPLEMENTATION AND EVALUATION OF A NAT-GATEWAY FOR THE GENERAL INTERNET SIGNALING TRANSPORT PROTOCOL∗
| Content Provider | CiteSeerX |
|---|---|
| Abstract | Abstract. The IETF’s Next Steps in Signaling (NSIS) framework provides an up-to-date signaling protocol suite that can be used to dynamically install, maintain, and manipulate state in network nodes. In its two-layered architecture, the General Internet Signaling Transport (GIST) protocol is responsible for the transport and routing of signaling messages. The strong presence of Network Address Translation (NAT) gateways in today’s Internet infrastructure causes some major challenges to network signaling protocols like NSIS. The address translation mechanisms performed by common NAT gateways are primarily concerned with address information contained in the IP and transport layer headers. Signaling sessions between two signaling peers do, however, rely on address information contained in GIST data units. If a non GIST-aware NAT gateway merely adapts addresses in the IP and transport headers only, inconsistent state will finally be installed at the signaling nodes. In this paper we present the design, implementation, and evaluation of an application level gateway for the GIST protocol, that translates GIST messages in a way that allows to establish signaling sessions between any two GIST nodes across a NAT gateway. Key words: distributed systems, Internet, middleware, performance evaluation 1. Introduction. Network |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Implementation Evaluation Address Information Common Nat Gateway Manipulate State Gist Data Unit Two-layered Architecture Nat Gateway Inconsistent State Non Gist-aware Nat Gateway General Internet Up-to-date Signaling Protocol Suite Adapts Address Address Translation Mechanism Layer Header Network Address Translation Network Node Application Level Gateway Gist Message Next Step Strong Presence Gist Protocol Performance Evaluation Today Internet Infrastructure Major Challenge Transport Header Gist Node |
| Content Type | Text |
| Resource Type | Article |
