| Full text | |
| Author(s): |
Carvalho, Fabricio B.
;
Ferreira, Ronaldo A.
;
Cunha, Italo
;
Vieira, Marcos A. M.
;
Ramanathan, Murali K.
;
IEEE
Total Authors: 6
|
| Document type: | Journal article |
| Source: | IEEE CONFERENCE ON COMPUTER COMMUNICATIONS (IEEE INFOCOM 2022); v. N/A, p. 10-pg., 2022-01-01. |
| Abstract | |
Network Function Virtualization promises better utilization of computational resources by dynamically scaling resources on demand. However, most network functions (NFs) are stateful and require state updates on a per-packet basis. During a scaling operation, cores need to synchronize access to a shared state to avoid race conditions and to guarantee that NFs process packets in arrival order. Unfortunately, the classic approach to control concurrent access to a shared state with locks does not scale to today's throughput and latency requirements. Moreover, network traffic is highly skewed, leading to load imbalances in systems that use only sharding to partition the NF states. To address these challenges, we present Dyssect, a system that enables dynamic scaling of stateful NFs by disaggregating the states of network functions. By carefully coordinating actions between cores and a central controller, Dyssect migrates shards and flows between cores for load balancing or traffic prioritization without resorting to locks or reordering packets. Our experimental evaluation shows that Dyssect reduces tail latency up to 32% and increases throughput up to 19:36% when compared to state-of-the-art competing solutions. (AU) | |
| FAPESP's process: | 14/50937-1 - INCT 2014: on the Internet of the Future |
| Grantee: | Fabio Kon |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/05183-0 - SkyNet: towards smart data planes |
| Grantee: | Luciano Paschoal Gaspary |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 15/24485-9 - Future internet for smart cities |
| Grantee: | Fabio Kon |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 18/23085-5 - ProgNet: networks with programmable data plane |
| Grantee: | Marcos Augusto Menezes Vieira |
| Support Opportunities: | Regular Research Grants |