765   RSTP and HSR

This tissue has following status: final proposal

Created: 23 Oct 2015





Category: Issue for edition 2 of this part

Issue: When an RSTP LAN is connected to an HSR ring over two RedBoxes,
a broadcast storm results, since RSTP cannot resolve that the two bridges are connected over the ring. One of the bridges should disable its port.

Proposal: Specify that a RedBox shall accept BPDUs, identify them by the number of the RSTP LAN to which they belong, and pack them in a frame that is forwarded over the ring to all RedBoxes. A RedBox with the same LAN ID should unpack the BPDU and send it as a local BPDU to the RSTP bridge it is conencted to.

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