3 research outputs found
Π Π°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½Π°Ρ ΠΎΡΠΊΠ°Π·ΠΎΡΡΡΠΎΠΉΡΠΈΠ²Π°Ρ ΠΏΠ»Π°ΡΡΠΎΡΠΌΠ° ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄Π»Ρ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎ-ΠΊΠΎΠ½ΡΠΈΠ³ΡΡΠΈΡΡΠ΅ΠΌΡΡ ΡΠ΅ΡΠ΅ΠΉ
The architecture of the high availability distributed control plane for SDN/OpenFlow networks are considered. High availability is achieved by redundancy of controller instances, active switch-controller communications, computing resources and tools for a controller instance failure and overloading detection and recovery. The proactive backup controller allocation algorithm which allows to minimize the time to repair in the case of a single controller instance failure is discussed. The algorithm for controller load-balancing allows dynamically reconfigure the control plane with a minimum number of switch control transfer operations to avoid controller instance overloading. The initial experimental results of the proposed algorithms for the HA distributed SDN control plane are described.Π ΡΠ°ΠΌΠΊΠ°Ρ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΡΡΡ ΠΏΡΠΎΠ±Π»Π΅ΠΌΠ° ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠ΅Π½ΠΈΡ ΠΎΡΠΊΠ°Π·ΠΎΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΠΎΠΉ ΠΏΠ»Π°ΡΡΠΎΡΠΌΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄Π»Ρ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΠΎ-ΠΊΠΎΠ½ΡΠΈΠ³ΡΡΠΈΡΡΠ΅ΠΌΡΡ
ΡΠ΅ΡΠ΅ΠΉ. Π¦Π΅Π»ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠ° Π°ΡΡ
ΠΈΡΠ΅ΠΊΡΡΡΡ ΠΈ ΠΏΡΠΈΠ½ΡΠΈΠΏΠΎΠ² ΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΠΈ ΠΎΡΠΊΠ°Π·ΠΎΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΠΉ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΠΎΠΉ ΠΏΠ»Π°ΡΡΠΎΡΠΌΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄Π»Ρ ΠΠΠ‘. ΠΡΠΊΠ°Π·ΠΎΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΡ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π½ΠΎΠΉ ΠΏΠ»Π°ΡΡΠΎΡΠΌΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΠΠ‘ Π΄ΠΎΡΡΠΈΠ³Π°Π΅ΡΡΡ Π·Π° ΡΡΠ΅Ρ ΡΠ΅Π·Π΅ΡΠ²ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΊΠΎΠ½ΡΡΠΎΠ»Π»Π΅ΡΠΎΠ², ΡΠ΅Π·Π΅ΡΠ²ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠΉ ΠΌΠ΅ΠΆΠ΄Ρ ΠΊΠΎΠΌΠΌΡΡΠ°ΡΠΎΡΠΎΠΌ ΠΈ Π½Π΅ΡΠΊΠΎΠ»ΡΠΊΠΈΠΌΠΈ ΠΊΠΎΠ½ΡΡΠΎΠ»Π»Π΅ΡΠ°ΠΌΠΈ, ΡΠ΅Π·Π΅ΡΠ²ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π²ΡΡΠΈΡΠ»ΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΡΠ΅ΡΡΡΡΠΎΠ² ΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΠ½ΡΡ
ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½ΡΠΎΠ² Π΄Π»Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ ΠΎΡΠΊΠ°Π·ΠΎΠ², ΠΏΡΠ΅Π΄ΠΎΡΠ²ΡΠ°ΡΠ΅Π½ΠΈΡ ΠΏΠ΅ΡΠ΅Π³ΡΡΠ·ΠΎΠΊ ΠΈ Π²ΠΎΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΡΠ΅ΡΡΡ. Π ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡΡΡ Π°Π»Π³ΠΎΡΠΈΡΠΌ ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΊΠΎΠΌΠΌΡΡΠ°ΡΠΎΡΠ°ΠΌΠΈ ΠΌΠ΅ΠΆΠ΄Ρ ΠΊΠΎΠ½ΡΡΠΎΠ»Π»Π΅ΡΠ°ΠΌΠΈ ΠΏΠ»Π°ΡΡΠΎΡΠΌΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ, Π²ΡΠ±ΠΎΡΠ° ΡΠ΅Π·Π΅ΡΠ²Π½ΡΡ
ΠΊΠΎΠ½ΡΡΠΎΠ»Π»Π΅ΡΠΎΠ² Π΄Π»Ρ ΠΊΠ°ΠΆΠ΄ΠΎΠ³ΠΎ ΠΊΠΎΠΌΠΌΡΡΠ°ΡΠΎΡΠ°, ΡΡΠΎ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΌΠΈΠ½ΠΈΠΌΠΈΠ·ΠΈΡΠΎΠ²Π°ΡΡ Π²ΡΠ΅ΠΌΡ Π²ΠΎΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΡ Π² ΡΠ»ΡΡΠ°Π΅ ΠΎΠ΄ΠΈΠ½ΠΎΡΠ½ΡΡ
ΠΎΡΠΊΠ°Π·ΠΎΠ² ΠΊΠΎΠ½ΡΡΠΎΠ»Π»Π΅ΡΠΎΠ². ΠΠ»Π³ΠΎΡΠΈΡΠΌ Π±Π°Π»Π°Π½ΡΠΈΡΠΎΠ²ΠΊΠΈ Π½Π°Π³ΡΡΠ·ΠΊΠΈ ΠΌΠ΅ΠΆΠ΄Ρ ΠΊΠΎΠ½ΡΡΠΎΠ»Π»Π΅ΡΠ°ΠΌΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈ ΠΏΠ΅ΡΠ΅ΠΊΠΎΠ½ΡΠΈΠ³ΡΡΠΈΡΠΎΠ²Π°ΡΡ ΠΏΠ»Π°ΡΡΠΎΡΠΌΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Ρ ΠΌΠΈΠ½ΠΈΠΌΠ°Π»ΡΠ½ΡΠΌ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²ΠΎΠΌ ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΉ ΠΏΠ΅ΡΠ΅Π΄Π°ΡΠΈ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΊΠΎΠΌΠΌΡΡΠ°ΡΠΎΡΠ°ΠΌΠΈ, ΡΡΠΎΠ±Ρ ΠΏΡΠ΅Π΄ΠΎΡΠ²ΡΠ°ΡΠΈΡΡ ΠΏΠ΅ΡΠ΅Π³ΡΡΠ·ΠΊΡ ΠΊΠΎΠ½ΡΡΠΎΠ»Π»Π΅ΡΠ°. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΡΡ
Π°Π»Π³ΠΎΡΠΈΡΠΌΠΎΠ²
METHOD OF CHOOSING A CONFIGURATION OF A HIGH AVAILABILITY DISTRIBUTED CONTROL PLATFORM FOR TRANSPORT SOFTWARE-DEFINED NETWORKS
The method of choosing a configuration of a high availability distributed control platform (HA DCP) for transport software-defined networks is considered.To provide fault tolerance to single controller failures the following aspects are affected in this problem: the choice of the controller instance location in the nodes of the transport SDN, the choosing of the primary and backup controllers for each switch, determining the optimal number of active controllers for distributed control platform. The minimization of delays in the transmission of control messages between the controller and the switch is a criterion for optimizing the controller placement. In the case of a single controller failure, the management of the switches is distributed among the active backup controllers. A complex method for solving this problem is proposed, including algorithms on graphs, clustering algorithms, and an algorithm for solving the Boolean linear programming problem, which allows selecting the location of the controllers in the network and the configuration of the primary and backup controller for each switch. The proposed method is implemented as a software tool. An experimental investigation of the developed method on the topologies of real transport networks is carried out
Fault-Tolerance Distributed Control Plane for Software Defined Networks
The architecture of the high availability distributed control plane for SDN/OpenFlow networks are considered. High availability is achieved by redundancy of controller instances, active switch-controller communications, computing resources and tools for a controller instance failure and overloading detection and recovery. The proactive backup controller allocation algorithm which allows to minimize the time to repair in the case of a single controller instance failure is discussed. The algorithm for controller load-balancing allows dynamically reconfigure the control plane with a minimum number of switch control transfer operations to avoid controller instance overloading. The initial experimental results of the proposed algorithms for the HA distributed SDN control plane are described