Multi-link transparent interconnection multicast frame transmission method and system
A technology of multi-link transparency and transmission method, applied in the field of multi-link transparent interconnection multicast frame transmission, can solve the problems of waste of investment, exhaustion of MAC address space of edge devices, loss of Layer 2 network, etc., to ensure smooth expansion , Bandwidth prevention, the effect of reducing lost reports
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[0030] Such as figure 1 As shown, a schematic diagram of the TRILL network connection structure of four sub-switches is given: each switch uses RB instead, figure 1 PC1, PC2 and PC3 are client devices, PC1 is connected to LAN1, PC2 is connected to LAN2, PC3 is connected to LAN3, edge switch RB1 is TRILL network edge device, intermediate switch RB3 is TRILL network transmission device; the port of RB1 A is connected to the switch RB3, and port B is connected to the edge switch RB2; RB2 and RB3 are connected to the TRILL network edge device RB4, where RB2 can be used as an edge device or as a transmission device.
[0031] Port A and port B on the edge switch RB1 are two paths in the TRILL network. The links connected from port A and port B not only transmit the traffic generated by RB1, but also back up each other at the same time.
[0032] Each RB recognizes the topology of the TRILL network by running its own link state protocol, generates a distribution tree, and generates a...
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