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