| 1. |
- Brewka, Lukasz, et al.
(författare)
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ALPHA Proposal of mapping QoS parameters between UPnP home network and GMPLS access
- 2011
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Ingår i: ACCESS NETWORKS. ; , s. 226-239
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Konferensbidrag (refereegranskat)abstract
- This paper is treating the interdomain QoS signaling between the home and access domains with a focus on applying it for providing QoS between a UPnP-QoS based home network and GMPLS based access network. The work presented here is defining a possible approach for an interface between UPnP-QoS and GMPLS in order to move towards end-to-end QoS establishment as well as investigating the complexity of such a solution. We present the QoS parameters and mechanisms in both UPnP-QoS and GMPLS and how they can be matched to create a coherent QoS architecture.
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| 2. |
- Brewka, Lukasz, et al.
(författare)
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QoS enabled resource allocation over an UPnP-QoS/€”GMPLS controlled edge
- 2011
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Ingår i: 2011 IEEE Consumer Communications and Networking Conference, CCNC'2011. - : Institute of Electrical and Electronics Engineers (IEEE). ; , s. 218-222
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Konferensbidrag (refereegranskat)abstract
- This paper focuses on the problem of coherent resource allocation within home and access networks. The interdomain QoS signaling discussed here enables the initiation of the QoS provisioning in the home and access from the end device in users home. The home network considered in this paper is UPnP-QoS enabled while the access network is GMPLS based. We propose and implement an interface between aforementioned network segments allowing for end-to-end QoS establishment. We present the QoS parameters and mechanisms in both UPnP-QoS and GMPLS and how they can be matched to create a coherent QoS architecture. Additionally we investigate the complexity of such a solution and present implementation results.
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| 3. |
- Gavler, Anders, et al.
(författare)
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Demonstration of a GMPLS control plane in an integrated Ethernet based access and distribution network
- 2010
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Ingår i: Communications and Photonics Conference and Exhibition (ACP), 2010 Asia. ; , s. 467-468
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Konferensbidrag (refereegranskat)abstract
- In next generation optical access the integration with the distribution network will probably become much more pronounced than today with a focus on "Ethernet everywhere". We have demonstrated a multi-layer control plane over a combined access and aggregation network. The implementation is based on modifying and adapting existing GMPLS protocols.
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| 4. |
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| 5. |
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| 6. |
- Li, Jie, et al.
(författare)
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A five year perspective of traffic pattern evolution in a residential broadband access network
- 2012
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Ingår i: Future Network & MobileSummit 2012. - 9781905824304
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Konferensbidrag (refereegranskat)abstract
- In this paper we describe a systematic study on long-term evolution of residential broadband Internet traffic covering 5 calendar years from June 2007 to May 2011. The traffic evolution is characterized both in the term of the total traffic volume, as well as the traffic volumes and shares for different application categories (file sharing, video streaming etc.), with the focus on comparing the traffic on the per IP user basis and among different broadband subscription groups. The results show that the average daily total traffic generated by each private end user increased only by about 33 % during the past 5 years. Further, the results show that the P2P filesharing has been dominating the network total traffic, but the daily file-sharing traffic volume per end user largely remains the same. Also, the daily streaming-media traffic volume per end user has increased dramatically by over 500% during the studied period of time. In the meantime, the daily web-browsing traffic volume per end user has increased by about 300%. Finally, a further investigation among 4 different FTTH broadband subscription groups with 1, 10 , 30, and 100 Mbit/s symmetric access speeds shows that the lower the access speed, the more diversified the end user traffic tend to be.
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| 7. |
- Li, Jie, et al.
(författare)
-
A five year perspective of traffic pattern evolution in a residential broadband access network
- 2012
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Ingår i: 2012 Future Network and Mobile Summit, FutureNetw 2012. - 9781905824304
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Konferensbidrag (refereegranskat)abstract
- In this paper we describe a systematic study on long-term evolution of residential broadband Internet traffic covering 5 calendar years from June 2007 to May 2011. The traffic evolution is characterized both in the term of the total traffic volume, as well as the traffic volumes and shares for different application categories (file sharing, video streaming etc.), with the focus on comparing the traffic on the per IP user basis and among different broadband subscription groups. The results show that the average daily total traffic generated by each private end user increased only by about 33 % during the past 5 years. Further, the results show that the P2P file-sharing has been dominating the network total traffic, but the daily file-sharing traffic volume per end user largely remains the same. Also, the daily streaming-media traffic volume per end user has increased dramatically by over 500% during the studied period of time. In the meantime, the daily web-browsing traffic volume per end user has increased by about 300%. Finally, a further investigation among 4 different FTTH broadband subscription groups with 1, 10, 30, and 100 Mbit/s symmetric access speeds shows that the lower the access speed, the more diversified the end user traffic tend to be.
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| 8. |
- Mahloo, Mozhgan, 1983-, et al.
(författare)
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Off-loading the aggregation networks by locality-aware peer-to-peer based content distribution
- 2011
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Konferensbidrag (refereegranskat)abstract
- Field measurements show that more than half of the Internet traffic could be able to take advantage of the local data storage and distribution by utilizing the peer–to–peer (P2P) technique, which in many cases can offer higher scalability and lower price than the client–server based applications. However, typically Internet service providers (ISPs) are limiting P2P applications, because P2P traffic may unnecessarily travel through areas managed by other ISPs and hence cause additional cost when transmitting outside the ISP’s network. In this paper we employ a locality–aware content fetching strategy for the P2P application and investigate the influence of systems utilizing locally stored content on the traffic load distribution between core, metro and access networks. Moreover, we quantitatively evaluate the improvement of the resource utilization in an access network along with the inter–ISP bandwidth saving. Our simulation results show that using locality aware content fetching in access network can reduce traffic loads in the metro and core networks by keeping it closer to the access via local bridging. The big amount of localized P2P traffic in the access network may introduce a new challenge for next generation access networks to cost–efficiently handle the local traffic.
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| 9. |
- Nordell, Viktor, et al.
(författare)
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BFD-triggered, GMPLS-based, multi-layer ethernet access network protection
- 2011
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Ingår i: 2011 Asia Communications and Photonics Conference and Exhibition, ACP 2011.
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Konferensbidrag (refereegranskat)abstract
- In this paper we present a solution for providing protection in a Ethernet based access and metro network. To accomplish this we targeted two issues, protection aimed path computation in networks which does not provide fully disjoint paths, and the design and implementation of bi-directional forward detection (BFD) protocol in a GMPLS controlled Ethernet network. To the best of our knowledge, neither issue has been previously addressed through a similar approach and is therefore to be considered novel in its design and implementation. Our implementation shows good performances and reliability in both performance testing and testbed experiments.
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| 10. |
- Nordell, Viktor, et al.
(författare)
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Concurrency and locality of content demand
- 2013
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Ingår i: 2013 International Conference on Smart Communications in Network Technologies (SaCoNeT 2013). - 9781479906956
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Konferensbidrag (refereegranskat)abstract
- Distribution of media data over the Internet is increasing in popularity and volume. This poses challenges not only for network operators but also for service providers when it comes to serving the demand in a cost-efficient way. In this paper, we approach this problem by investigating the potential of co-operative approaches where locality in space (users in the same network) and locality in time (concurrent downloads) are exploited such that as many requests as possible may behandled inside the access and metro networks. This approach may contribute not only to reducing transport costs (less traffic in core networks and at peering points) by but also improve the end user experience (by reduced round trip times and exclusion of some possible bottlenecks). To this end we develop a method to measure the possible gains from, firstly, optimal handling of concurrent downloads and, secondly, optimal utilization localavailability. We apply the method to BitTorrent data from two metropolitan access networks and find that the bandwidth savings amount to between 10% and 20% when optimizing concurrent downloads and between 56% and 66% when exploiting local availability with a simulated network cache.
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| 11. |
- Nordell, Viktor, et al.
(författare)
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Concurrency and locality of content demand
- 2013
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Ingår i: 2013 International Conference on Smart Communications in Network Technologies, SaCoNeT 2013. - 9781479906949
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Konferensbidrag (refereegranskat)abstract
- Distribution of media data over the Internet is increasing in popularity and volume. This poses challenges not only for network operators but also for service providers when it comes to serving the demand in a cost-efficient way. In this paper, we approach this problem by investigating the potential of co-operative approaches where locality in space (users in the same network) and locality in time (concurrent downloads) are exploited such that as many requests as possible may be handled inside the access and metro networks. This approach may contribute not only to reducing transport costs (less traffic in core networks and at peering points) by but also improve the end user experience (by reduced round trip times and exclusion of some possible bottlenecks). To this end we develop a method to measure the possible gains from, firstly, optimal handling of concurrent downloads and, secondly, optimal utilization local availability. We apply the method to BitTorrent data from two metropolitan access networks and find that the bandwidth savings amount to between 10% and 20% when optimizing concurrent downloads and between 56% and 66% when exploiting local availability with a simulated network cache.
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| 12. |
- Nordell, Viktor, et al.
(författare)
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GMPLS controlled multi-layer ethernet
- 2010
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Ingår i: Proceedings of SPIE Conference Volume 7989. - : SPIE.
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Konferensbidrag (refereegranskat)abstract
- This paper presents the novel idea of using GMPLS control plane for all flavors of an IEEE 802.1Q multi-layer Ethernet, applied to an access and aggregation network scenario. Such a network could provide better resilience, control of resource allocation, bandwidth guarantees and the possibility of having a unified control plane in an environment that includes more and more type of forwarding technologies.It might also be possible to reuse existing equipment and provide backward compatibility for legacy systems when deploying such a GMPLS network over an existing Ethernet based network.This was accomplished through extending GMPLS protocols by defining a new switch capability object, new label object for ML Ethernet, and the development of control plane procedures for handling scenarios specific to ML Ethernet. These extensions has been implemented and verified, along with the development of a ML Ethernet aware PCE, and the results indicates that this novel architecture is plausible and his an interesting potential.
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| 13. |
- Sköldström, Pontus, 1983-, et al.
(författare)
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Virtualizing Open Access Networks
- 2011
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Ingår i: 7th Swedish National Computer Networking Workshop (SNCNW).
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Konferensbidrag (refereegranskat)abstract
- Existing network virtualization methods in Open-Flow networks are lacking in many respects, especially whenapplied in multi-tenant scenarios such as open access networks. Inthis paper we investigate how OpenFlow can be used to simplifythe use and management of a shared network infrastructure inopen access networks. We then present initial ideas on how toimprove virtualization in OpenFlow networks by applying novelmethods to virtualize the forwarding plane itself.
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