3099110 - "Discarding packet as connection to backend has been unexpectedly closed" error in SAP Cloud Connector (SCC) logs

Multiple entries can be seen in the SAP Cloud Connector (SCC) logs (ljs_trace.log (<2.17)/scc_core.trc (>=2.17), like the following:

"<YYYY/MM/DD> <Timestamp> #DEBUG#com.sap.core.connectivity.spi.processing.OutboundConnectionErrorHandler#tunnel-client-64-1#<ID>#Backend channel [id: <ConnectionID>, L:/<LocalHost> ! R:<RemoteHost>/<IP_Address>] is closed
<YYYY/MM/DD> <Timestamp> #ERROR#com.sap.core.connectivity.spi.processing.AbstractProtocolProcessor#tunnel-client-64-2#<ID>#Discarding packet as connection to backend has been unexpectedly closed"

**Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.

SAP Cloud Connector release independent.

SCC, SAP Cloud Connector, #Discarding packet as connection to backend has been unexpectedly closed, ftp server, backend, network, firewall, backend channel is closed, ljs_trace.log, java.io.EOFException: Connection closed by remote host, network connectivity, backend released, scc_core.trc, cc, tunnel-client, , KBA , BC-MID-SCC , SAP Cloud Connector On-Demand/On-Premise Connectivity , Problem