  We consider a system model with two sources, a reliable source and an
unreliable source, who are responsible for disseminating updates regarding a
process to an age-based gossip network of $n$ nodes. Nodes wish to have fresh
information, however, they have preference for packets that originated at the
reliable source and are willing to sacrifice their version age of information
by up to $G$ versions to switch from an unreliable packet to a reliable packet.
We study how this protocol impacts the prevalence of unreliable packets at
nodes in the network and their version age. Using a stochastic hybrid system
(SHS) framework, we formulate analytical equations to characterize two
quantities: expected fraction of nodes with unreliable packets and expected
version age of information at network nodes. We show that as $G$ increases,
fewer nodes have unreliable packet, however, their version age increases as
well, thereby inducing a freshness-reliability trade-off in the network. We
present numerical results to support our findings.
