Ruckus R500
Table of contents
Network devices such as router and access point often have snmp capability. search Private Enterprise Numbers (PENs) associate with Ruckus 
search on shodan with the following filter
"1.3.6.1.4.1.25053"

Found objectid 1.3.6.1.4.1.25053.3.1.1. The last node could be product/model specific.
search online repository for mib with OID “1.3.6.1.4.1.25053.3.1” to find relavent mib file. Could use the following filter to search from specific repository.
site:https://mibs.observium.org "1.3.6.1.4.1.25053.3.1"

Found the Object ID for R500 is “1.3.6.1.4.1.25053.3.1.4.71”

Search on shodan/Censys to expand from there 