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FPR-4120 and Netmodule FPR4K-NM-6X10SR-F

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

1 Reply 1

Abheesh Kumar
VIP Alumni
VIP Alumni

Weird issue, So you have two set of inline pair 1 is with eth2/1 & eth2/2 and the other is with eth 2/3 & eth2/4. ports 3&4 on the slots having issues it may be some back plane issue did you check with Cisoc TAC.

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