This article explains why you might encounter error messages related to PFED_NOTIF_GLOBAL_STAT when requesting Packet Forwarding Engine (PFED) traffic statistics via SNMP.

1) You may observe the following log messages on your Juniper device:

PFED_NOTIF_GLOBAL_STAT_UNKNOWN: Unknown global notification stat: Total DMAed packets
PFED_NOTIF_STAT_UNKNOWN: Unknown notification type stat: Uclass
PFED_NOTIF_STAT_UNKNOWN: Unknown notification type stat: CfDf
PFED_NOTIF_STAT_UNKNOWN: Unknown notification type stat: AutoConf

2) Incorrect values might be returned for SNMP requests for PFED traffic statistics.

When requesting pfe traffic statistics via SNMP walk directed to MPC10E, MPC11E, LC9600 line cards, and MX304 platform, error logs are observed and incorrect values are returned for SNMP request for pfe traffic statistics. The issue happens because the reply format for the command 'show pfe statistics traffic' has changed for MPC10, MPC11, LC9600 line cards, and MX304 platform and the code parsing fails, generating an error message.

The above log messages will be seen when we are using SNMP and if its trying to poll "show pfe statistics notification" through MIB OID - 1.3.6.1.4.1.2636.3.44.1.1.2.1.2.

This is a cosmetic message and not harmful to the system. It may not cause traffic impact.


To overcome the situation, please follow below workaround:

1) These messages can be filtered as follows:

set system syslog file messages match "!(PFED_NOTIF_GLOBAL_STAT_UNKNOWN)".

OR

2) Stop polling the MIB OID - 1.3.6.1.4.1.2636.3.44.1.1.2.1.2. Just exclude it from SNMP hierarchy

Else

3) Exclude the MIB OID under SNMP hierarchy 1.3.6.1.4.1.2636.3.44.1.1.2.1.2 through below sample configuration

snmp {
view EXLCUDE_PFE_NOTIF {
oid .1 include;
oid 1.3.6.1.4.1.2636.3.44.1.1.2.1.2 exclude;
}
}


Please refer below PR for more details.

https://prsearch.juniper.net/problemreport/PR1692411