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Cisco Bug: CSCvu20805 - SNMP slow response seen after reload

Last Modified

Jul 20, 2020

Products (61)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 3548-X Switch
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 3636C-R Switch
  • Cisco Nexus 3548 Switch
  • Cisco Nexus 31108TC-V Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 93108TC-FX Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 3064 Switch
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Known Affected Releases

7.0(3)I7(7)

Description (partial)

Symptom:
SNMP slow response seen after reload

With the below configuration:
snmp-server community <community> use-ipv4acl snmp-acl

snmp-acl should permit check once for every OID. However, after reload, we see the permit checks are performed twice.

Before reload: (from "debug snmp all")
2020 May  7 05:25:45.988578 snmpd: check_acl_permit : Call npacl_apply_filter for acl:snmp-acl:4194305 
2020 May  7 05:25:45.989459 snmpd: check_acl_permit : Exit npacl_apply_filter
2020 May  7 05:25:45.993292 snmpd: check_acl_permit : Call npacl_apply_filter for acl:snmp-acl:4194305 
2020 May  7 05:25:45.994174 snmpd: check_acl_permit : Exit npacl_apply_filter 

After reload:

2020-05-04 16:56:25.227101 us: [101] check_acl_permit : Call npacl_apply_filter for acl:snmp-acl:4194308 
2020-05-04 16:56:25.227515 us: [101] check_acl_permit : Exit npacl_apply_filter 
2020-05-04 16:56:25.227526 us: [101] check_acl_permit : Call npacl_apply_filter for acl:snmp-acl:4194305 
2020-05-04 16:56:25.227938 us: [101] check_acl_permit : Exit npacl_apply_filter

Conditions:
use-ipv4acl or use-ipv6acl should be configured for community and then reload.
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Bug Details Include

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