bsnl broadband frequent disconnection

internet disconnects frequently, but work fine when connected, line is ok but snr margin is
DownstreamUpstream


SNR Margin: 10.0 4.4db
Line Attenuation:30.819.3db
Data Rate:61441021kbps
Max Rate:86481097kbps
POWER:19.412.1dbm

system log is has follows
7/10/2020 15:55:45> SNMP TRAP 3: link up
7/10/2020 15:55:45> netMakeChannDial: err=-3000 rn_p=8048e7d8
7/10/2020 15:55:45> Accept() fail
7/10/2020 15:55:50> Last errorlog repeat 1 Times
7/10/2020 15:55:50> netMakeChannDial: err=-3000 rn_p=8048e7d8
7/10/2020 16:49:11> Last errorlog repeat 1333 Times
7/10/2020 16:49:11> ADSL: down
7/10/2020 16:49:12> SNMP TRAP 2: link down
7/10/2020 16:49:12> MPOA Link Down
7/10/2020 16:49:12> SNMP TRAP 2: link down
7/10/2020 16:49:12> Last errorlog repeat 1 Times
7/10/2020 16:49:12> mpoaChannDown: ch<2> null iface
7/10/2020 16:49:12> SNMP TRAP 2: link down
7/10/2020 16:49:12> Last errorlog repeat 3 Times
7/10/2020 16:49:12> netMakeChannDial: err=-3001 rn_p=8048e7d8
7/10/2020 16:49:18> Last errorlog repeat 53 Times
7/10/2020 16:49:18> ADSL: wait initialize
7/10/2020 16:49:18> netMakeChannDial: err=-3001 rn_p=8048e7d8
7/10/2020 16:49:24> Last errorlog repeat 27 Times
7/10/2020 16:49:24> ADSL: initializing
7/10/2020 16:49:25> netMakeChannDial: err=-3001 rn_p=8048e7d8

what is snmp trap down and mpao down