version Version 5.30(NE40&80 V300R002C01B591)
Network Discription :
Server (switch)-NE80(pe router)-MA5200g-S8016-S6506-MA5600
Symptom:Whenever customer starts multicast services(IPTV) they are not able to connect.
The server VLAN is missing on the interface and the connecting interface is also showing down.On the interface one way traffic is showing.After measuring power from the power meter it was found that power was only coming -30db.That means it was the issue of Fibre.
Always design the network with redundent link so that if one link down then wwe can use the other link to avoid any outage.