PSE: GNSS on IE-5000 / Catalyst IE-9300 In Stacked Configurations

[BrianSekleckiGE]

Pre-Sales Engineering Question:

When the IE-5000 ( H-Stacked ) and/or the Catalyst IE-9300 (IE-9320-22S2C4X with GPS/GNSS, StackWise) are Stacked, how does the combined switch IOS-XE instance deal with the presence of two GNSS receivers?

For simplicity-sake, presume a 2-switch stack (limitation of the IE-5000 H-Stack anyway).

• Under normal operations scenario: Are they both available and if the signal is lost in one, the other takes over feeding NTP and PTP refclock?  How does it pick which one to use?
• Hardware Fault Scenario: If the StackWise Master's GNS/GPS is being used under normal operations, and the Master switch crashes, does it automatically fail over to the GNS/GPS in another switch in the stack?
• Lastly PTP: Any chance they can operate independently, with the combined IOS-XE OS stack announcing PTP Grandmaster with two different priorities, one PTP instance associated with one receiver?

Thanks, ~Brian

[BrianSekleckiGE]

Well, I may have answered one of my own questions:

Apparently Stackwise stacking disabled protocols PTP, PRP, and CIP on the IE-9300.  At least in the current firmware.

[Michael-Fusco]

We are having the same Industrial Protocols over IE9300 conversation with Cisco.

https://www.cisco.com/c/en/us/td/docs/switches/lan/cisco_ie9300/software/17_7/redundancy-protocol-config-ie93xx.html

When IE9300s are Stacked they lose a bunch of Industrial Protocols [as of 2025]: HRP, PTP, PRP, Fast Rep, MRP, yada.... 
 - Not I also believe Stackwise is Licensed on the IE9300 (C2960 Stack Cables) vs. H-Stack on IE5000 (Inband Ports)
 - "Release notes" are you best point for "features" as its all IOS-XE now (Catalyst)

 - IE5000s are EOL 2029ish so hopefully software development in Catalyst imports all the Industrial Protocols. 

[Albert Mitchell]

PTP over IE9320 stack is on the roadmap.  No time frame for release.

will ensure dual GNSS receiver is covered and if not it will be documented.

PS: thanks for reading the documentation.