HSR is a Layer 2 redundancy protocol for Ethernet. HSR adds a header to each frame, and duplicates the frame, sending it along two directions of a ring. Nodes in the ring pass the frame along the ring, using the header to discard duplicates.
Ethernet II, Src: ZurichUn_15:77:84 (00:15:12:15:77:84), Dst: IntelCor_5c:22:42 (00:1b:21:5c:22:42) ... High-availability Seamless Redundancy (IEC62439 Part 3 Chapter 5) 0001 .... .... .... = Path: 1 000. .... .... .... = Network id: 0 ...1 .... .... .... = Lane id: Lane B (1) LSDU size: 52 [correct] Sequence number: 6679 Type: ARP (0x0806) Address Resolution Protocol (reply) ...
The HSR dissector is fully functional. Supervision frames have the same format as in the related Parallel Redundancy Protocol, so they share a common dissector. The HSR dissector only handles the actual HSR header.
Imported from https://wiki.wireshark.org/HSR on 2020-08-11 23:14:47 UTC