Why assign different syslog levels per device?

Assigning different syslog levels per device allows network administrators to fine-tune the granularity of logging for each specific device. For example, a critical core router might have a higher logging level (e.g., "warnings" or "errors") to capture important events, while a less critical access switch might be set to a lower level (e.g., "informational" or "debugging") to reduce log volume. This prevents log servers from being overwhelmed with unnecessary messages and ensures that critical events are not missed among a flood of less important ones. Controlling how many syslog messages are stored locally is typically a function of the device's logging buffer size, not the syslog level. Identifying the source device is achieved through the device's IP address or hostname in the syslog message itself, not by different syslog levels. Rate-limiting messages by severity is a feature of some syslog servers or devices, but the primary purpose of assigning different levels is to define the type of messages sent, not their transmission rate.