Graphs

SNMP - Simple Network Management Protocol

CCNP Enterprise Nov 9, 2025
  • SNMP v1 (Slow) can only get one OID at a time.
  • SNMP v2c (Fast) adds bulk OID requests
  • SNMP v3 (Secure) adds authentication and encryption

OID Tree / MIB (Management Information Base)

Access is accomplished with get and set operations

Unsolicited notifications via trap and inform operations

SNMP View - what you can see, everything below

SNMP Group - views, read/write

SNMP User

snmp-server view VIEW-NAME OID included/excluded
snmp-server group GROUP-NAME v3 auth/noauth/priv read/write VIEW-NAME
snmp-server user USERNAME GROUP-NAME v3 sha PASSWORD des56 SECRET

SNMP v2c Configuration

access-list 5 permit 10.10.1.1
snmp-server community MyString ro 5
snmp-server host 10.10.1.1 informs version 2c MyString

Tags

Craig Garnham

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