cctmXHistoryRxECInfoFrameSize 1.3.6.1.4.1.9.9.165.1.2.2.1.1

Negotiated maximum EC frame data payload size in the receive direction. LAPM distinguishes between Rx and Tx. MNP will have the the same information frame size for Rx and Tx, cctmHistoryTxECInfoFrameSize.