Scalable and Balanced Policy Enforcement through Hybrid SDN-Label Switching
| Autor: | Shigang Chen, Youlin Zhang, Olufemi Odegbile |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Edge device
Computer science business.industry Label switching Scalability 0202 electrical engineering electronic engineering information engineering Network security policy Overhead (computing) 020206 networking & telecommunications 02 engineering and technology Adaptive routing business Computer network |
| Zdroj: | GLOBECOM |
| DOI: | 10.1109/globecom38437.2019.9014022 |
| Popis: | Software-defined networks facilitate automatic poli- cy enforcement with dynamic routing of flows through a sequence of middleboxes that offer the required network functions. As a result, network policy enforcement based on middleboxes, which is tedious and error-prone to perform in traditional IP networks, is greatly simplified. However, TCAM-based flow tables in SDN are small and energy-demanding, which limits the scalability of policy enforcement. This paper proposes a hybrid SDN-label switching scheme that combines TCAM- based switching (in SDN) at the network edge with label switching in the network core to provide scalable policy enforcement without compromising per-flow management capability. A linear optimization is proposed to balance workloads among the middleboxes. We demonstrate on OMNET++ that our proposed solution incurs much smaller processing/communication overhead and achieves better load-balancing when comparing with the prior art. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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