Hi again,
the result related to the issue interface, of the command
show interfaces terse
is as follow
Interface Admin Link Proto Local Remote
reth4 up down
reth4.1549 up down inet 10.14.224.193/26
multiservice
reth4.32767 up down multiservice
does this confirm your finding, that its the naighbor device, which is down, and not the firewall configuration?
second q, from where this interface reth4.32767 came, its not at all in the configuraton, is it system default?