This read-write object controls whether the local BCP entity negotiates the Tinygram-Compression option, which permits implementations to indicate support for compressing very small Ethernet frames before sending them over the WAN link. Enabling this lets both half-bridges agree to strip the padding normally used to pad small frames up to Ethernet's minimum size, which mainly matters on slow WAN links carrying a lot of small, ack-sized frames where that padding overhead is proportionally significant. A low-bandwidth serial link bridging a segment with lots of small acknowledgment-sized frames would benefit noticeably from enabling this, while a fast link would barely notice the difference.