![]() SNMPv1 is extremely outdated, but still exists to provide legacy software compatibility. SNMPv3 is the most secure version which offers message integrity checks, authentication and encryption of the packets. SNMPv2c is a community-based version of SNMP and all communication between the devices is in clear text. Prior to this release the Catalyst 9800 WLC could only be monitored with SNMP via its Wireless Management Interface or via Redundancy Management Interface (in case of a standby WLC in HA cluster on versions 17.5.1 and higher). Configure SNMP on WLCįrom Cisco IOS XE Bengaluru 17.6.1, Ethernet Service Port (Management Interface VRF/GigabitEthernet 0) is supported in Cisco Catalyst 9800 Series Wireless Controller. Some information can be exclusive to telemetry and some of the OIDs previously available on AireOS are not yet available on 9800. Catalyst 9800 still offers SNMP for legacy purposes. Telemetry works in a "push" model where WLC sends out relevant information to the server without the need to be queried. With 9800 WLC, the focus has been put on telemetry. Majority of the relevant information like client count, number of joined access points, processor and memory usage can be obtained via SNMP query from the tool that monitors, to the WLC. Older AireOS WLCs rely on SNMP as the main protocol for monitor. ![]() If your network is live, ensure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. ![]() The information in this document was created from the devices in a specific lab environment. Some of the OIDs mentioned in this article do not exist on older image versions. Basic knowledge of 9800 WLC and SNMP protocolĪll tests were performed on MacOS 10.14 and a 9800-CL WLC with image version 17.5.1.This document describes how to configure Simple Network Management Protocol (SNMP) to monitor Cisco 9800 Wireless LAN Controller (WLC).
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