Hi,
I use a FPR-4120 chassis with a Netmodule FPR4K-NM-6X10SR-F configured as an IPS and connected to 2 Gigmaon HC1 TAPs.
I've connected 2 Fibers on ports Eth2/1 and Eth2/2 for one network link to monitor and 2 others fibers on ports Eth2/3 and Eth2/4 for another network link to monitor.
--> I have not encounter any issue on Eth2/1 and Eth2/2.
As we have encountered some discard packets on the HC1 TAP port connected to the Eth2/3, several tests have been done to localize the issue --> conclusion : doubt on the Eth2/3 interface on the network module interface.
I've requested a RMA on the Network module, I've replaced the "older" network module by the one send wiith the RMA, and now I'm encountering some links down on Eth2/3 after several hours !!!
I've moved the Network module from slot 2 to Slot 3, and I've encountered the same behaviour with Eth3/3 ( same port on the module) !!
I've tried to insert a fiber between port 3 and port 4 : link goes UP and goes down after several hours !!
I did the same test on ports 5 and 6 with the same fiber : I never encountered these issue : link still goes UP !!
I don't understand this behaviour on ports 3 and 4 with the original Network Module and the new one sent with RMA.
Now I have a doubt on the chassis but I don't undestand the reason why I have the same issue when inserting the Network module on Slot 2 and Slot 3 !!
If someone have any idea or have experienced the same issue ???
Thanks a lot for your help