This object reports which ROHC operating mode a header-compression context is currently running in — unidirectional, optimistic, or reliable. The mode determines how much feedback the decompressor sends back to the compressor, so an admin troubleshooting compressed-header errors would check whether a context has fallen back to unidirectional (no feedback) mode, which tolerates more loss but recovers from errors more slowly. As an illustrative example, a context showing reliable(3) on a link with heavy packet loss suggests the two ends are exchanging frequent acknowledgments to keep headers synchronized, at the cost of extra feedback traffic.