An engineer sees that traffic is not flowing between two line cards on an Cisco ASR 9000 Series device.
To troubleshoot this issue, what should the engineer do first?
A . Verify whether there are errors on the EOBCs
B . Verify whether there are PFM alarms on the line cards and RSPs
C . Verify whether LPTS configuration is prohibiting traffic between the two line cards
D . Verify whether there are alarms in the system diagnostics
Answer: B