Hello, feixue.
The application scenarios of the three network port modes supported by the U1900 are as follows:
Table 1 Network port modes
Network Port Mode | Network Port 0 | Network Port 1 | Network Port 2 |
Single-network-port mode | Processes all data streams and connects to the BillServer. | This network port and network port 0 work in active/standby mode. | Not used. |
Dual-network-port mode | Processes the following streams and connects to the BillServer: - Network management packets: Telnet, Secure Shell (SSH), Simple Network Management Protocol (SNMP), Trivial File Transfer Protocol (TFTP), FTP server (FTPS), web management server, or proprietary protocols for communicating with the business management unit (BMU), Business Management Platform (BMP), and LMT - Protocol packets: RADIUS/SNTP | Processes all data streams and connects to the BillServer. | Not used. |
Triple-network-port mode | Processes the following streams and connects to the BillServer: - Network management packets: Telnet, SSH, SNMP, TFTP, FTPS, or proprietary protocols for communicating with the BMU, BMP, and LMT - Protocol packets: RADIUS/SNTP | Processes all data streams and connects to the BillServer. | Connects to the BillServer. |
Note:
In dual-network-port mode and triple-network port mode,
Network port 0 must be used for accessing the web management system, LMT command tree, and CLI.
Network port 0, 1 or 2 can be used for accessing the web self-service system.
Only one network port can be used to connect to the BillServer.
I hope I could help you.