[FS#854] Unstable Internet caused by frequent PPPoE reconnect, network.wan.keepalive=0 has no effect

[LEDE Bugs]

The following task has a new comment added:

FS#854 - Unstable Internet caused by frequent PPPoE reconnect, network.wan.keepalive=0 has no effect
User who did this - ppuzr (ppuzr)

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It turns out the last commands I tried below didn't help.

root at LEDE:~# uci set network.wan.keepalive='0 1'
root at LEDE:~# /etc/init.d/network restart


pppd still didn't ignore echo failures

daemon.info pppd[16382]: No response to 5 echo-requests
daemon.notice pppd[16382]: Serial link appears to be disconnected.
daemon.info pppd[16382]: Connect time 0.4 minutes.
daemon.info pppd[16382]: Sent 881 bytes, received 733 bytes.
daemon.notice pppd[16382]: Connection terminated.
daemon.info pppd[16382]: Connect time 0.4 minutes.
daemon.info pppd[16382]: Sent 881 bytes, received 733 bytes.
daemon.info pppd[16382]: Sent PADT
daemon.info pppd[16382]: Exit.

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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=854#comment2815