| 1. |
- Kothandaraman, Babu, et al.
(författare)
-
Centrally controlled distributed VNF state management
- 2015
-
Ingår i: Proceedings of the 2015 ACM SIGCOMM Workshop on Hot Topics in Middleboxes and Network Function Virtualization (HotMiddlebox '15). - New York, NY, USA : ACM. - 9781450335409 ; , s. 37-42
-
Konferensbidrag (refereegranskat)abstract
- The realization of increased service flexibility and scalability through the combination of Virtual Network Functions (VNF) and Software Defined Networks (SDN) requires careful management of both VNF and forwarding state. Without coordination, service scalability comes at a high cost due to unacceptable levels of packet loss, reordering and increased latencies. Previously developed techniques has shown that these issues can be managed, at least in scenarios with low traffic rates and optimistic control plane latencies. In this paper we extend previous work on coordinated state management in order to remove performance bottlenecks, this is done through distributed state management and minimizing control plane interactions. Evaluation of our changes show substantial performance gains using a distributed approach while maintaining centralized control.
|
|
| 2. |
- Sahhaf, Sahel, et al.
(författare)
-
Scalable Architecture for Service Function Chain Orchestration
- 2015
-
Ingår i: 2015 Fourth European Workshop on Software Defined Networks. - 9781509001804 ; , s. 19-24
-
Konferensbidrag (refereegranskat)abstract
- Network Function Virtualization (NFV) enables to implement network functions in software, high-speed packet processing functions which traditionally are dominated by hardware implementations. Virtualized Network Functions (NFs) may be deployed on generic-purpose servers, e.g., in datacenters. The latter enables flexibility and scalability which previously were only possible for web services deployed on cloud platforms. The merit of NFV is challenged by control challenges related to the selection of NF implementations, discovery and reservation of sufficient network and server resources, and interconnecting both in a way which ful fills SLAs related to reliability and scalability. This paper details the role of a scalable orchestrator in charge of finding and reserving adequate resources. The latter will steer network and cloud control and management platforms to actually reserve and deploy requested services. We highlight the role of involved interfaces, propose elements of algorithmic components, and will identify major blocks in orchestration time in a proof of concept prototype which accounts for most functional parts in the considered architecture. Based on these evaluations, we propose several architectural enhancements in order to implement a highly scalable network orchestrator for carrier and cloud networks.
|
|
| 3. |
- Sköldstrom, Pontus, et al.
(författare)
-
Application-centric networks and the future 5G transport
- 2015
-
Ingår i: 2015 17th International Conference on Transparent Optical Networks (ICTON). - 9781467378802
-
Konferensbidrag (refereegranskat)abstract
- In this paper we present the Application-centric IP/Optical network concept pursued by the H2020 project ACINO, and how it could be applied as a future 5G transport network. While 5G concepts are still maturing we investigate the envisioned capabilities of a 5G network, the use-cases and the requirements different applications would have on a wired transport network for 5G. Our conclusion is that ACINO could fulfil the bandwidth, low-latency, security, and reliability requirements, in a way that differentiates between different 5G services.
|
|
| 4. |
- Sköldstrom, Pontus, et al.
(författare)
-
Towards unified programmability of cloud and carrier infrastructure
- 2014
-
Ingår i: Proceedings - 2014 3rd European Workshop on Software-Defined Networks, EWSDN 2014. - 9781479969197 ; , s. 55-60
-
Konferensbidrag (refereegranskat)abstract
- The rise of cloud services poses considerable challenges on the control of both cloud and carrier network infrastructures. While traditional telecom network services rely on rather static processes (often involving manual steps), the wide adoption of mobile devices including tablets, smartphones and wearables introduce previously unseen dynamics in the creation, scaling and withdrawal of new services. These phenomena require optimal flexibility in the characterization of services, as well as on the control and orchestration of both carrier and cloud infrastructure. This paper proposes a unified programmability framework addressing: the unification of network and cloud resources, the integrated control and management of cloud and network, the description for programming networked/cloud services, and the provisioning processes of these services. In addition proofs-of-concept are provided based on existing open source control software components. © 2014 IEEE.
|
|
