On the Live Dashboard for Snapt One virtual Load Balancer, you will see a Status column. For example, it may say “UP [L7OK] in 4ms”. The brackets give you the current health status, and what it means.
Below is a table of what the various values indicate.
| Code | Meaning |
|---|---|
| L4OK | check passed on layer 4, no upper layers testing enabled |
| L4TOUT | layer 1-4 timeout |
| L4CON | layer 1-4 connection problem, “Connection refused” or “No route to host” |
| L6OK | check passed on layer 6 |
| L6TOUT | layer 6 (SSL) timeout |
| L6RSP | layer 6 invalid response – protocol error |
| L7OK | check passed on layer 7 |
| L7OKC | check conditionally passed on layer 7 |
| L7TOUT | layer 7 (HTTP/SMTP) timeout |
| L7RSP | layer 7 invalid response – protocol error |
| L7STS | layer 7 response error, for example HTTP 5xx |