| Read-only Argument | Type | Description |
|---|
| protocol | enum () | Connection protocol. |
| src-address | ip6Addr | Source IP address of the connection. |
| src-port | num | Source port of the connection. |
| dst-address | ip6Addr | Destination IP address of the connection. |
| dst-port | num | Destination port of the connection. |
| reply-src-address | ip6Addr | Reply source IP address. |
| reply-src-port | num | Reply source port. |
| reply-dst-address | ip6Addr | Reply destination IP address. |
| reply-dst-port | num | Reply destination port. |
| tcp-state | enum (none | syn-sent | syn-recv | established | fin-wait | close-wait | last-ack | time-wait | close | listen) | TCP connection state. |
| icmp-type | num | ICMP type. |
| icmp-code | num | ICMP code. |
| icmp-id | num | ICMP ID. |
| gre-protocol | num | GRE protocol. |
| gre-version | num | GRE version. |
| gre-key | num | GRE key. |
| connection-type | string | Connection type. |
| timeout | time | Connection timeout. |
| connection-mark | string | Connection mark. |
| orig-packets | num | Number of original direction packets. |
| orig-bytes | num | Number of original direction bytes. |
| orig-fasttrack-packets | num | Number of original direction fasttrack packets. |
| orig-fasttrack-bytes | num | Number of original direction fasttrack bytes. |
| repl-packets | num | Number of reply direction packets. |
| repl-bytes | num | Number of reply direction bytes. |
| repl-fasttrack-packets | num | Number of reply direction fasttrack packets. |
| repl-fasttrack-bytes | num | Number of reply direction fasttrack bytes. |
| orig-rate | num | Original direction rate. |
| repl-rate | num | Reply direction rate. |