Research Article
Security Analysis of the TSN Backbone Architecture and Anomaly Detection System Design Based on IEEE 802.1Qci
Table 4
Firewall types with the OSI layer, protocols, and techniques.
| Firewall type | OSI layer | Protocols | Filter techniques |
| Link level | 2 | TSN | PSFP | Packet filter | 3, 4 | TCP/IP, UDP/IP | Stateful, White/Black lists | Proxy | 4 | TCP/UDP | Content-based | Application level | 7 | HTTP, FTP, SMTP | DPI, IDS |
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