  Large networks of Low Earth Orbit (LEO) satellites are being built using
inter-satellite lasers. These networks promise to offer low-latency wide-area
connectivity, but reliably routing such traffic is difficult, as satellites are
very resource-constrained and paths change constantly.
  We present STARGLIDER, a new routing system where path computation is
delegated to ground stations, while satellites are routing-oblivious and
exchange no information at runtime. Yet, STARGLIDER satellites effectively
support reliability primitives: they fast reroute packets over near-optimal
paths when links fail, and validate that packets sent by potentially malicious
ground stations follow reasonable paths.
