| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 1 | # |
| 2 | # IEC 62439-3 High-availability Seamless Redundancy |
| 3 | # |
| 4 | |
| 5 | config HSR |
| 6 | tristate "High-availability Seamless Redundancy (HSR)" |
| 7 | ---help--- |
| 8 | If you say Y here, then your Linux box will be able to act as a |
| 9 | DANH ("Doubly attached node implementing HSR"). For this to work, |
| 10 | your Linux box needs (at least) two physical Ethernet interfaces, |
| 11 | and it must be connected as a node in a ring network together with |
| 12 | other HSR capable nodes. |
| 13 | |
| 14 | All Ethernet frames sent over the hsr device will be sent in both |
| 15 | directions on the ring (over both slave ports), giving a redundant, |
| 16 | instant fail-over network. Each HSR node in the ring acts like a |
| 17 | bridge for HSR frames, but filters frames that have been forwarded |
| 18 | earlier. |
| 19 | |
| 20 | This code is a "best effort" to comply with the HSR standard as |
| 21 | described in IEC 62439-3:2010 (HSRv0), but no compliancy tests have |
| 22 | been made. |
| 23 | |
| 24 | You need to perform any and all necessary tests yourself before |
| 25 | relying on this code in a safety critical system! |
| 26 | |
| 27 | If unsure, say N. |