Fault Tolerant Ethernet Explained
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
- Windows 7/2003 or newer
- Honeywell Control Firewall (CF9)
- Honeywell C300 Controller
- Honeywell Series 8 I/O
Technical overview
- 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
- Web site: Fault Tolerant Ethernet . 2019-05-25 . Honeywell Process Solutions.
- Web site: Technical Publications: Honeywell’s Fault Tolerant Ethernet Guide . 2023-09-28 . process.honeywell.com . en-US.
- Web site: 2021-04-23 . Honeywell Fault Tolerant Ethernet and Control Firewall . 2023-09-28 . The Automation Blog . en-US.
- Web site: Experion PKS. Honeywell Process Solutions. 2019-05-25.
- Web site: Experion PKS. Honeywell Process Solutions.
External links