我的P-870H-51正常嗎? (沒MOD,MOD解約了)

Attainable Net Data Rate
怎麼只有13.578 Mbps 21.239 Mbps

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VDSL Training Status: Showtime
VDSL Profile: PROF_17A
Traffic Type: PTM
============================================================================
VDSL Port Details Upstream Downstream
Line Rate: 2.086 Mbps 10.096 Mbps
Actual Net Data Rate: 2.043 Mbps 10.048 Mbps
SNR Margin: 16.3 dB 12.4 dB
Actual Delay: 8.0 ms 8.0 ms
Transmit Power: 11.1 dBm 13.3 dBm
Receive Power: -22.6 dBm -26.4 dBm
Actual INP: 30.0 symbols 30.0 symbols
Total Attenuation: 37.5 dB 35.9 dB
Attainable Net Data Rate: 13.578 Mbps 21.239 Mbps