When we run monitoring (SNMP) we notice that when BGP related OIDs are run, rpd process spikes to 20-30%.
Specific OIDs are
- 1.3.6.1.4.1.2636.5.1.1.2.4.1.1.1
- 1.3.6.1.4.1.2636.5.1.1.2.1.1.1.14
- 1.3.6.1.4.1.2636.5.1.1.2.1.1.1.13
- 1.3.6.1.4.1.2636.5.1.1.2.1.1.1.11
- 1.3.6.1.4.1.2636.5.1.1.2.1.1.1.9
- 1.3.6.1.4.1.2636.5.1.1.2.1.1.1.7
- 1.3.6.1.4.1.2636.5.1.1.2.1.1.1.2
- 1.3.6.1.4.1.2636.5.1.1.2.1.1.1.1
- 1.3.6.1.4.1.2636.5.1.1.2.1.1.1.15
The Normal RPD % spikes by more than 10%
From the logs we can see the query is being done for more number of BGP peers for the OIDs.
The SNMPD will need to query RPD for each OID to each of these peers & RPD needs to spend resource for the replies.
Almost 'no of peers * no of OIDs' number of transaction is being carried out fetch these info & hence rpd will be utilised more at this time.
Since MX104 has comparatively lower memory, the % value of process will be high for these transactions.
Hence this is expected rise, which is still within limits.