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Host unusual network throughput out
warning

Description Host transmit bandwidth is high (>80%)
Query 
>>>
	
				
					((
				
			
				
					
					
						rate
					
				
			
				
					(
				
			
				
					
				
			
				
					[5m]) / on(instance, device) 
				
			
				
					
				
			
				
					) > .80)
Query Explanation

The rule computes the transmit rate over the last 5 minutes for each network interface (rate(node_network_transmit_bytes_total[5m])), divides that by the interface's configured speed (node_network_speed_bytes), and fires when the resulting utilization exceeds 0.80 (i.e., the host is sending more than 80 % of its available bandwidth). The alert triggers for any host/interface that sustains this high transmit usage for the duration of the 5‑minute rate window.

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