The overall impact is very low on network resources. IP Fabric is reading all data from a device with a single SSH session in a similar way as the administrator, only faster. It is very common for IP Fabric to run discovery during business hours when little to no irregularities were observed in monitoring.
IP Fabric collects data only via Command-Line Interface (CLI) with set of known operational commands on supported network devices. Read-only access is sufficient for discovery. Additionally, the platform uses API to communicate with vendor controllers (Versa, Viptela) or cloud vendors (AWS, Azure, NSX-T). IP Fabric doesn’t collect any SNMP data from active network devices. Our CLI–based approach, via SSH, achieves a greater level of detail compared to SNMP.