An SNMP Response is the reply message exchanged after an SNMP operation. A managed device sends it to answer a manager’s Get, GetNext, GetBulk, or Set request; the NMS sends it to acknowledge an Inform. section 6.2.4 section 6.1.1
Interpret a Response according to the message that triggered it:
- Get, GetNext, and GetBulk responses return requested or discovered OIDs and their values. section 6.2.4
- A Set response follows the managed device’s requested MIB change and reports the resulting exchange. section 6.1.1
- An Inform response confirms that the NMS received the managed device’s Inform message. section 6.2.4
- The SNMP agent sends Responses from the managed device toward the manager, which listens on UDP port 162; the agent listens on UDP port 161. section 6.1.2
Interface-status query
An NMS sends a Get request for R1’s GigabitEthernet0/1 status variable. R1 replies with a Response containing the requested information; the illustrated exchange reports the interface as down. A Set exchange similarly returns a Response after R1 changes the interface status to up. section 6.1.1
