Urgent¶
The channel with the highest priority. It uses for the critical tasks or operations.
Ping¶
Uses to test the reachability of Network Device. If device is reachable you will receive SegmentAcknowledgment Segment.
The Message by Control Protocol (SACP) should have the next structure:
| Part | Field name | Length (bits) | Value |
|---|---|---|---|
| Header | Channel | 2 | 0x00 |
| Data Classifier | 6 | 0x00 | |
| SARP | 16 | Routing Protocol (SARP) address information | |
| ACK | 1 | Should be 0x01 | |
| TTL | 4 | Time to live | |
| Data length | 11 | 0x0 | |
| Payload | Data | 0 | Without Payload part |
SegmentAcknowledgment¶
Uses for acknowledge that Segment from sender was received and verified.
The Segment by Transport Protocol (SATP) should have the next structure:
| Part | Field name | Length (bits) | Value |
|---|---|---|---|
| Header | Channel | 2 | 0x00 |
| Data Classifier | 6 | 0x0A | |
| SARP | 16 | Routing Protocol (SARP) address information | |
| SEG | 1 | 0x0 | |
| FIN | 1 | 0x1 | |
| ACK | 1 | 0x0 | |
| Reserved | 1 | Must be set to 0x0 | |
| Data length | 4 | 0x2 | |
| Payload | Data | 16 | The CRC field from received Packet |