[j-nsp] Unable to transmit traffic after software upgrade

[Gökhan Gümüş]

Hi all,

I need some advice.
We are currently in a process of upgrading our Juniper MX960 series routers.

Some of our customers are not able to transmit traffic after we performed
maintenance.
Circuits are connected as Layer2 circuit with ethernet-ccc configuration.
It seems circuits are hanging off. It is not a negotiation issue first of
all.
After we shut/ no shut interfaces, customers are able to transmit traffic.
This issue is not occuring on all Layer 2 ccc circuits.In order to determine
which customer is not able to transmit traffic, either we need to monitor
traffic on all interfaces or wait for customer complaints.

My question is,

Is there any other way to determine this situation?

Thanks and regards,
Gokhan Gumus