Description

On QFX and EX Series Switches the following logs might be displayed as a result of polling class of service-related SNMP OIDs. These messages might eventually lead to interface counters not being populated properly. There is no other impact on these messages.

Nov 19 07:00:07 switch kernel: et-0/0/33: invalid PFE PG counter pairs to copy, src 0xfffff8012285d720, dst 0

Nov 19 07:00:07 switch kernel: et-0/0/36: invalid PFE PG counter pairs to copy, src 0xfffff800076df570, dst 0

Nov 19 07:00:07 switch kernel: et-0/0/37: invalid PFE PG counter pairs to copy, src 0xfffff8012285d750, dst 0 

Nov 19 07:00:07 switch kernel: et-0/0/40: invalid PFE PG counter pairs to copy, src 0xfffff800076df480, dst 0 

Nov 19 07:00:07 switch kernel: et-0/0/44: invalid PFE PG counter pairs to copy, src 0xfffff800255374e0, dst 0

Nov 19 07:00:07 switch kernel: et-0/0/45: invalid PFE PG counter pairs to copy, src 0xfffff800076df420, dst 0

Nov 19 07:00:07 switch kernel: et-0/0/46: invalid PFE PG counter pairs to copy, src 0xfffff800076de390, dst 0 

Nov 19 07:00:07 switch kernel: et-0/0/47: invalid PFE PG counter pairs to copy, src 0xfffff800076df210, dst 0

Nov 19 07:00:07 switch kernel: et-0/0/48: invalid PFE PG counter pairs to copy, src 0xfffff800076dff30, dst 0

 

Symptoms

On QFX and EX Series Switches one may see "invalid PFE PG counter pairs" errors might be displayed as a result of polling class of service-related SNMP OIDs. These messages might eventually lead to interface counters not being populated properly.

 

Solution

You can refer to the following PR for further reference about the resolution and workaround, please review the following documentation:
PR1476829 - The QFX Series platforms exhibit invalid Packet Forwarding Engine PG counter pairs to copy src 0xfffff80, dst 0.
https://prsearch.juniper.net/problemreport/PR1476829

Modification History

10/30/2023 : Article Created

10/22/2024: Adding EX platform