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Fault Tolerant Ethernet

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Fault Tolerant Ethernet
Communication protocol
Purposenetwork protocol
Developer(s)Honeywell
Introduction2011; 13 years ago (2011)

Fault Tolerant Ethernet (FTE) is proprietary protocol created by Honeywell. [1][2]

Designed to provide rapid network redundancy, on top of spanning tree protocol.[3] Each node is connected twice to a single LAN through the dual network interface controllers. The driver and the FTE enabled components allow network communication to occur over an alternate path when the primary path fails.[4][5]

Default time before failure is detected, is Diagnostic Interval (1000ms) multiplier with Disjoin Multiplier (3), for a 3000ms recovery time.

Similar to Switch Fault Tolerance (SFT) in windows and mode=1 (active-backup) in Linux.

Supported hardware and software

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  • Windows 7/2003 or newer
  • Honeywell Control Firewall (CF9)
  • Honeywell C300 Controller
  • Honeywell Series 8 I/O

Technical overview

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  • Uses Multicast ( 234.5.6.7), for FTE community.
  • Recommended maximum of 300 FTE nodes and 200 single connected Ethernet nodes (A machine with to network cards is considered as two separate single connected Ethernet nodes).
  • Recommended to have separate broadcast/multicast domain , for different FTE communities.
  • Recommended maximum of 3 tiers of switches.
  • Default UDP Source Port: 47837
  • Default UDP Destination Port : 51966

References

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  1. ^ "Fault Tolerant Ethernet". Honeywell Process Solutions. Retrieved 2019-05-25.
  2. ^ "Technical Publications: Honeywell's Fault Tolerant Ethernet Guide". process.honeywell.com. Retrieved 2023-09-28.
  3. ^ "Honeywell Fault Tolerant Ethernet and Control Firewall". The Automation Blog. 2021-04-23. Retrieved 2023-09-28.
  4. ^ "Experion PKS". Honeywell Process Solutions. Retrieved 2019-05-25.
  5. ^ "Experion PKS". Honeywell Process Solutions.
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