Hi,
I am using a Juniper MX104 router as a Gateway device for my internet cloud . In that one layer 3 interface Ge-0/0/8 is connected to the LAN core switch . When any loop happens in the network connected to ge-0/0/8 , the entire network goes down and we were not able to reach the MX from the network connected to ge-0/0/7 also . We found all the BGP sessions were lost .. The MX is reachable only after removing the loop in the network connected to ge-0/0/8 .
All the switches connected to ge-0/0/8 are Huawei switches . Earlier there was a configuration issue in the Switches which created the LOOP . Now configuration issues has been solved and network is stable . We have enabled loop prevention in all the switches .
We don't want this issue to be happen again . Though we have enabled all the necessary protocols in the switches to avoid loop in the network connected to interface ge-0/0/8 . We want to make sure that even any loops in the downstream network should not affect the MX104 performance .
Please any one help me in protecting the MX from such incidents in future . Please find the attached topology for better understanding .
Thanks in advance
Regards
Mahesh