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9/11/2010 9:11 PM | |
Joined: 12/22/2006 Last visit: 1/25/2022 Posts: 1742 Rating: (308) |
Hello, Have a look to this nice video about HSR (high speed redunadncy) http://support.automation.siemens.com/WW/view/en/29034438 From that video, I see at least two reasons to keep intelligent HSR (high speed redunadncy) aware switches. 1) the ring manager is testing the ring by sending special multicast telegrams. HSR switches will only forward them on their ring ports. But I expect classical switches will flood this telegrams on all their ports (causing uneeded load). 2) To have short predictable reconfiguration times for the ring (when a failure occurs), you need intelligent switches that are able to delete their forwarding tables on request by the Ring manager. Classical switches will continue to forward frames via wrong ports for much more longer times. |
Best regards |
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