Support: SkyStation5060POE
Here you’ll find everything you’ll need to install, maintain, and learn about your SkyStation5060POE. In addition to that you can fill out a support ticket for advanced problems and get into the details of Certification and Documentation.
FAQs
Knowledge Base
Can you help me understand the GRS link switching and roaming logic?
The GRS (Ground Radio Station) uses SkyDM (SkyLine DataMux) to manage both link switching (between mediums/paths) and roaming (between multiple GRS within a medium). SkyDM is the key component that multiplexes the C2 links during a flight.
Link Switching
Link Switching chooses the primary link medium/paths (e.g., LTE vs Satcom) on the ground.
• Inputs: 1-second average of received user data on all links.
• Scope: Evaluates and switches between different link mediums/paths (e.g., LTE vs. Satcom).
• Prioritization: When the current active link becomes inactive (no data for >1 second), chooses an active link with the highest received rate (if multiple).
• Evaluation cadence: Every 1 second with double-hysteresis, consistent with muLTElink.
• Trigger: Switch occurs when a link is disqualified (0 user data, poor RSSI, or loss of connectivity).
• Behavior: Prioritizes stability with hysteresis to avoid unnecessary flapping.
Roaming (Within a Link)
Roaming chooses the lead GRS within a given link when multiple GRS are available.
• Scope: Roaming operates within a single link when multiple GRS are available.
• Inputs: Network connectivity status, RSSI strength, and reception of ARS heartbeats.
• Qualification: Each GRS is qualified using this combination of factors.
• Evaluation cadence: Every 1.5 seconds.
• Hysteresis: Single hysteresis applied to reduce unnecessary swaps.
• Selection: Chooses the lead GRS from qualified candidates; prefers strongest RSSI if all else equal.
Key Takeaway
• Primary vs. Lead distinction: Note that link switching chooses the primary link medium, while roaming chooses the lead GRS within that link.