Thanks for review,
Act i am a bit (may be a lot) blur about ur quest..
how are they connected? Config on CORE is on vlan 40 and port g6/1/21 access 40 (down) but no directly physically connected. Through switch.
Since it's nothing to do with STP, why NMS Server cant ping the router ? even Core cant ping that router ip.
What is the the function of huawieping (hwping) command?
What is command hwping imclinktopologypleaseignore ping purpose ?