A hybrid management substrate structure for adaptive network resource management

Abstract

Abstract-Centralized and offline network management functionality, traditionally deployed by operators, cannot easily deal with the traffic patterns of emerging services, which are becoming more dynamic and unpredictable. As such, decentralized solutions that are flexible and adaptive to traffic and network dynamics are of paramount importance. To this end, we have been developing an in-network management approach in which an intelligent substrate allows the dynamic reconfiguration of resources according to network conditions. The set of nodes forming this logical structure are able to communicate with each other to coordinate their decisions. While in previous work we investigated the use of full-mesh and ring structures to connect the substrate nodes, we consider here a hybrid approach that combines the benefits of the other two. We describe algorithms that can be practically used to compute this hybrid structure and that take into account important criteria such as minimizing the latency and the communication overhead among the substrate nodes. We evaluate the impact of key parameters associated with the construction process.

SigMA: Signaling Framework for Decentralized Network Management Applications

“…As explained in Section V-B, the Security Management application runs only on LMs which control at least one edge node, so that the actual number of MA instances in the network ranges from 4 to 64. In this paper, we are interested in the performance of the proposed signaling framework (i.e., how it can be used to support management applications with different requirements) rather than in the management substrate (defining the mode of communication between MA instances [5]). As such, we show the results as the total number of deployed LMs varies.…”

“…For all these use cases, results were obtained based on custom simulators 5 . In all cases, we used the Deltacom topology [21] with 92 nodes for layer 3 routing.…”

“…The distributed instances of a particular MA can interact, for instance, to share information, to harmonize their decisions or to synchronize their reconfiguration cycle. To support the decision-making process of a specific MA, the set of LMs involved in the execution of that application are organized into a management substrate [5] [10]. The substrate is a logical structure used to facilitate the exchange of information between decision-making entities for coordination purposes.…”

“…In recent years, some proposals for communication models in distributed environments have been discussed in the literature e.g., [2][3][4] [5]. Existing approaches, however, do not apply well to adaptive resource management as they either focus on specific problems (e.g., mechanisms to build a global network view [3]), lack the required functionality (e.g., absence of synchronization support [6]), or are simply too complex to deploy, e.g., [7].…”

Scalable Cache Management for ISP-Operated Content Delivery Services

“…In this case, each manager is in charge of a subset of the network caches 2 . To take management decisions, the manager can use locally available information about the resources it supervises or obtained from other managers, using for instance the management substrate structure and communication protocols proposed in [11] and [12].…”