xSTP - Spanning Tree Protocols
| Feature | ICX 7150 | ICX 7250 | ICX 7450 | ICX 7550 | ICX 7650 | ICX 7850 |
|---|---|---|---|---|---|---|
| 802.1s Multiple Spanning Tree | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| 802.1s Multiple Spanning Tree enhancement (MSTP+) | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| 802.1W Rapid Spanning Tree Protocol (RSTP) | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| 802.1D Spanning Tree | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| Fast Port Span, Fast Uplink Span, and Single-instance Span | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| PVST/PVST+ compatibility | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| PVRST+ compatibility | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| PVST+ Protect | 08.0.61 | 08.0.61 | 08.0.61 | 08.0.95 | 08.0.70 | 08.0.90 |
| Spanning Tree Protocol (STP) protection | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| Root Guard | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| Root Guard for MSTP | 08.0.61 | 08.0.61 | 08.0.61 | 08.0.95 | 08.0.70 | 08.0.90 |
| BPDU Guard | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| Error disable recovery | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| Port loop detection1 | 08.0.60 | 08.0.30 | 08.0.20 | 08.0.95 | 08.0.70 | 08.0.90 |
| Spanning Tree path cost method changes | 08.0.70 | 08.0.70 | 08.0.70 | 08.0.95 | 08.0.70 | 08.0.90 |
| MSTP path-cost configuration | 08.0.90 | 08.0.90 | 08.0.90 | 08.0.95 | 08.0.90 | 08.0.90 |
- In an 802.1br (SPX) configuration, strict mode loop detection is not supported on explicitly tagged PE ports, but it is supported on untagged and dual-mode PE ports. ↩