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ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
f421436a AB |
2 | # |
3 | # IEC 62439-3 High-availability Seamless Redundancy | |
4 | # | |
5 | ||
6 | config HSR | |
7 | tristate "High-availability Seamless Redundancy (HSR)" | |
8 | ---help--- | |
9 | If you say Y here, then your Linux box will be able to act as a | |
10 | DANH ("Doubly attached node implementing HSR"). For this to work, | |
11 | your Linux box needs (at least) two physical Ethernet interfaces, | |
12 | and it must be connected as a node in a ring network together with | |
13 | other HSR capable nodes. | |
14 | ||
15 | All Ethernet frames sent over the hsr device will be sent in both | |
16 | directions on the ring (over both slave ports), giving a redundant, | |
17 | instant fail-over network. Each HSR node in the ring acts like a | |
18 | bridge for HSR frames, but filters frames that have been forwarded | |
19 | earlier. | |
20 | ||
21 | This code is a "best effort" to comply with the HSR standard as | |
ee1c2797 PH |
22 | described in IEC 62439-3:2010 (HSRv0) and IEC 62439-3:2012 (HSRv1), |
23 | but no compliancy tests have been made. Use iproute2 to select | |
24 | the version you desire. | |
f421436a AB |
25 | |
26 | You need to perform any and all necessary tests yourself before | |
27 | relying on this code in a safety critical system! | |
28 | ||
29 | If unsure, say N. |