General

Polling SVI If-Index to collect packet statistics via SNMP. Using CLI "show interface [vlan #] counter [detail]" The above results in memory leak in pfstat process. Once process runs out of its designated memory space, leads to crash/hap reset.

Symptom

Memory leak in pfstat process results in HAP reset. Reason: Reset triggered due to HA policy of Reset Service: pfstat hap reset

Conditions

Polling SVI If-Index to collect packet statistics via SNMP. Or, using CLI "show interface [vlan #] counter [detail]" The above results in memory leak in pfstat process. Once process runs out of its designated memory space, leads to crash/hap reset. Switch should be operating in L2 mode (no L3 license) to hit the issue.

Workaround

Excluding SVI if_indexes from SNMP polling for interface statistics collection. Avoiding running "show interface counter" globally or for SVI. The ifindex OID is 1.3.6.1.2.1.2.2.1.1. So excluding this OID should prevent the issue (although it has not yet been confirmed).

Further Problem Description