Assessing Contact Graph Routing Performance and Reliability in Distributed Satellite Constellations

Table 1

IP and DTN protocols comparison.

	Internet protocols	DTN protocols
Connectivity	Continuous end-to-end transaction.	Sporadic or none end-to-end transaction and high link latency.
Storage	Small buffers to mitigate link congestion.	Large memories to overcome link disruption.
Underlying protocols	Ethernet, WiFi, fiber optic, and so forth.	Internet protocols, ethernet, WiFi, fiber optic, and so forth.
Applications	Internet, mobile networks without disruptions, and wireless sensor networks.	Deep Space systems, satellite networks, underwater networks, and mobile networks with disruptions.