Multiple rstp domain separation
AssigneeiS5 Communications Inc.
InventorsTamer Soliman, Yuri Luskind, Kostya Belezko, Boris Tseitin
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Abstract
The present invention relates to electronic systems for use in high demand or mission critical environments, including power stations, sub-stations, roadside transportation, rail, and industrial applications. The present invention provides a) increased resilience of mission critical communications infrastructure b) ability to maintain multiple independent RSTP domains over HSR ring d) method of using a hidden VLAN as an RSTP domain ID c) a method of creating multiple redundant protocols domains over HSR ring.
Claims33
A system for domain separation in a control plane of an L2 network having a plurality of network instances, the system comprising:
- (a) a first ring network 101;
- (b) a second network 103 having the plurality of network instances, each instance of the second network 103 connected to the first ring network 101 through a plurality of network devices 102 and generating at least one second network control frame 200 and each network device keeping the control plane of the first ring network 101 and the second network 102 separate while integrating the data plane of the first and second networks;
- (c) each network device 102 receiving the at least one second network control frame 200 from each instance associated with the network device and assigning each of the at least one second network control frame 200 a second network domain ID and a control frame domain ID thereto by each network device 102, and releasing the second network control frame 200 with the control frame domain ID as a marked second network control frame 201 to be carried on the first ring network 101;
- and
- wherein, when each network device 102 receives the marked second network control frame 201 from the first ring network 101 and where the control frame domain ID of the marked second network control frame 201 matches the control frame domain ID of the specific instance of the second network 103, the network device 102 releases the second network control frame 200 to the instance of the second network 103 associated with that control frame domain ID after removing the control frame domain ID from the marked second network control frame 201.
A method for domain separation in a control plane of a L2 network having a plurality of network instances, the method comprising:
- (a) connecting a first ring network 101 to a second network 103 having the plurality of network instances, each instance of the second network 103 connected to the first ring network 101 through a plurality of network devices 102;
- (b) generating at least one second network control frame 200 and each network device keeping the control plane of the first ring network 101 and the second network 102 separate while integrating the data plane of the first and second networks;
- (c) receiving the at least one second network control frame 200 from each instance associated with the network device from each network device 102 assigning each of the at least one second network control frame 200 a second network domain ID and a control frame domain ID upon releasing the second network control frame 200 with the control frame domain ID as a marked second network control frame 201 to be carried on the first ring network 101;
- and
- wherein, when each network device 102 receives the marked second network control frame 201 from the first ring network 101 and where the control frame domain ID of the marked second network control frame 201 matches the control frame domain ID of the specific instance of the second network 103, the network device 102 releases the second network control frame 200 to the specific instance of the second network 103 after removing the control frame domain ID from the marked second network control frame 201.
A network device for domain separation in a control plane of an L2 network having a plurality of network instances, the device connecting a first network 101 to a second network 103, the second network having the plurality of network instances and comprising:
- (a) a first port 150 for receiving at least one second network control frame 200 from each instance associated with the network device and having an Domain Separation logic function for assigning a control frame domain ID to each of the at least one second network control frame 200 prior to releasing through port 120 to port 110;
- (b) a second port 110 for receiving a second network control frame with a control frame domain ID attached thereto 201;
- (c) a third port 120 for receiving:
- (i) from the second port 110, the at least one marked second network control frame having a control frame domain ID 201 and comparing the control frame domain ID with the control domain ID of the specific instance of the second network 103 to determine whether the control frame domain ID of the specific instance of the second network 103 matches the control frame ID of the at least one marked second network control frame and where the marked second network control frame 201 match, releasing the second network control frame without the control frame domain ID as an unmarked second network control frame 200 to be carried on the second network 103;
- and
- (ii) from port 150, at least one second network control frame 200 from each instance associated with the network device and assigning a control frame domain ID to each of the at least one second network control frame 200 prior to releasing through port 120 to port 110 as per the Domain Separation Logic Function;
- and
- (d) a forth port 160 acting as a virtual switch port.
Dependencies are inferred from the claim text.