Cisco Legacy WLC

Plugin: go.d.plugin Module: snmp

Overview

Monitor Cisco Legacy WLC (wireless lan controller) with Netdata over SNMP. Netdata recognizes the device automatically by its sysObjectID (recognized across 14 device identifiers) and collects the metrics this profile declares — on top of the generic SNMP baseline — with no manual OID configuration.

Netdata's SNMP collector matches the device to the cisco-legacy-wlc.yaml profile via sysObjectID/sysDescr, then polls the OIDs it declares.

This integration is supported on all platforms.

This integration supports multiple instances configured side-by-side.

Default Behavior

Auto-Detection

Auto-detected as Cisco Legacy WLC via sysObjectID/sysDescr.

Limits

The default configuration for this integration does not impose any limits.

Performance Impact

The default configuration for this integration is not expected to impose a significant performance impact on the system.

Setup

You can configure the snmp collector in two ways:

Method	Best for	How to
UI	Fast setup without editing files	Go to Nodes → Configure this node → Collectors → Jobs, search for snmp, then click + to add a job.
File	If you prefer configuring via file, or need to automate deployments (e.g., with Ansible)	Edit go.d/snmp.conf and add a job.

important

UI configuration requires paid Netdata Cloud plan.

Prerequisites

SNMP access

SNMP must be enabled on the device and reachable from the Netdata Agent acting as the site's SNMP hub.

Configuration

Options

Configure the SNMP collector with the device hostname and SNMP credentials. See the SNMP collector reference for all options.

via UI

Configure the snmp collector from the Netdata web interface:

1. Go to Nodes.
2. Select the node where you want the snmp data-collection job to run and click the ⚙ (Configure this node). That node will run the data collection.
3. The Collectors → Jobs view opens by default.
4. In the Search box, type snmp (or scroll the list) to locate the snmp collector.
5. Click the + next to the snmp collector to add a new job.
6. Fill in the job fields, then click Test to verify the configuration and Submit to save.
   • Test runs the job with the provided settings and shows whether data can be collected.
   • If it fails, an error message appears with details (for example, connection refused, timeout, or command execution errors), so you can adjust and retest.

via File

The configuration file name for this integration is go.d/snmp.conf.

The file format is YAML. Generally, the structure is:

update_every: 1
autodetection_retry: 0
jobs:
  - name: some_name1
  - name: some_name2

You can edit the configuration file using the edit-config script from the Netdata config directory.

cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config go.d/snmp.conf

Examples

There are no configuration examples.

Alerts

There are no alerts configured by default for this integration.

Metrics

On top of the generic SNMP baseline (the Generic SNMP Device integration — interfaces, system, IP/TCP/UDP, host resources), this Cisco Legacy WLC profile adds the metrics below. Each is collected only where the device exposes the matching OID — inclusion means the profile requests it; availability depends on the device model and software.

38 metrics in 7 groups; each row is a chart context usable in alerts.

Group	Metrics
Network / Interface	4
Network / TCP	12
Network / UDP	6
Network / Wireless	12
System / CPU	1
System / Memory	2
System / Uptime	1

Network / Interface

Metric (chart context)	Unit	Scope	Description
snmp.device_prof_ifAdminStatus	{status}	per interface, interface	Current administrative state of the interface
snmp.device_prof_ifHighSpeed	bit/s	per interface, interface	Estimate of the interface's current bandwidth
snmp.device_prof_ifNumber	{interface}	device	Number of network interfaces regardless of their current state present on this system
snmp.device_prof_ifOperStatus	{status}	per interface, interface	Current operational state of the interface

Network / TCP

Metric (chart context)	Unit	Scope	Description
snmp.device_prof_tcpActiveOpens	{transition}/s	device	TCP connections transitioning from CLOSED to SYN-SENT
snmp.device_prof_tcpAttemptFails	{failure}/s	device	Failed TCP connection attempts
snmp.device_prof_tcpCurrEstab	{connection}	device	Current TCP connections in ESTABLISHED or CLOSE-WAIT state
snmp.device_prof_tcpEstabResets	{reset}/s	device	TCP connections reset from ESTABLISHED/CLOSE-WAIT
snmp.device_prof_tcpHCInSegs	{packet}/s	device	TCP segments received
snmp.device_prof_tcpHCOutSegs	{packet}/s	device	TCP segments sent
snmp.device_prof_tcpInErrs	{error}/s	device	TCP segments received with errors
snmp.device_prof_tcpInSegs	{packet}/s	device	TCP segments received
snmp.device_prof_tcpOutRsts	{reset}/s	device	TCP segments sent with RST flag
snmp.device_prof_tcpOutSegs	{packet}/s	device	TCP segments sent
snmp.device_prof_tcpPassiveOpens	{transition}/s	device	TCP connections transitioning from LISTEN to SYN-RCVD
snmp.device_prof_tcpRetransSegs	{retransmit}/s	device	TCP segments retransmitted

Network / UDP

Metric (chart context)	Unit	Scope	Description
snmp.device_prof_udpHCInDatagrams	{packet}/s	device	UDP datagrams received
snmp.device_prof_udpHCOutDatagrams	{packet}/s	device	UDP datagrams sent
snmp.device_prof_udpInDatagrams	{packet}/s	device	UDP datagrams received
snmp.device_prof_udpInErrors	{error}/s	device	UDP datagrams received but couldn't be delivered (not due to missing app)
snmp.device_prof_udpNoPorts	{error}/s	device	UDP datagrams received with no app on the destination port
snmp.device_prof_udpOutDatagrams	{packet}/s	device	UDP datagrams sent

Network / Wireless

Metric (chart context)	Unit	Scope	Description
snmp.device_prof_bsnAPAdminStatus	{status}	per ap_mac_address, ap_name, ap_location, ap_ip_address	Admin State of the AP
snmp.device_prof_bsnAPIfAdminStatus	{status}	per ap_if_slot_id, ap_mac_address, ap_name, ap_location, ap_ip_address	Admin status of the interface
snmp.device_prof_bsnAPIfLoadChannelUtilization	%	per ap_if_slot_id, ap_mac_address, ap_name, ap_location, ap_ip_address	Channel utilization
snmp.device_prof_bsnAPIfLoadRxUtilization	%	per ap_if_slot_id, ap_mac_address, ap_name, ap_location, ap_ip_address	Percentage of time the Airespace AP receiver is busy operating on packets
snmp.device_prof_bsnAPIfLoadTxUtilization	%	per ap_if_slot_id, ap_mac_address, ap_name, ap_location, ap_ip_address	Percentage of time the Airespace AP transmitter is busy operating on packets
snmp.device_prof_bsnAPIfOperStatus	{status}	per ap_if_slot_id, ap_mac_address, ap_name, ap_location, ap_ip_address	Operational status of the interface
snmp.device_prof_bsnAPIfPoorSNRClients	{client}	per ap_if_slot_id, ap_mac_address, ap_name, ap_location, ap_ip_address	Number of clients with poor SNR attached to this Airespace AP at the last measurement interval
snmp.device_prof_bsnAPOperationStatus	{status}	per ap_mac_address, ap_name, ap_location, ap_ip_address	Operation State of the AP
snmp.device_prof_bsnApIfNoOfUsers	{user}	per ap_if_slot_id, ap_mac_address, ap_name, ap_location, ap_ip_address	Number of users associated with this radio
snmp.device_prof_bsnDot11EssAdminStatus	{status}	per wlan_index, ssid	Administrative Status of ESS(WLAN)
snmp.device_prof_bsnDot11EssNumberOfMobileStations	{station}	per wlan_index, ssid	Number of mobile stations currently associated with the WLAN
snmp.device_prof_bsnDot11EssRowStatus	{status}	per wlan_index, ssid	Row status type for the bsnDot11EssEntry

System / CPU

Metric (chart context)	Unit	Scope	Description
snmp.device_prof_cpu_usage	%	device	The current CPU utilization

System / Memory

Metric (chart context)	Unit	Scope	Description
snmp.device_prof_memory_free	By	device	Free RAM of the switch
snmp.device_prof_memory_total	By	device	Total RAM of the switch

System / Uptime

Metric (chart context)	Unit	Scope	Description
snmp.device_prof_systemUptime	s	device	Time since the system was last rebooted or powered on.