Rates of LAN and WAN interfaces of the USG2100

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LAN interface: indicates the interface through which the device exchanges data with the devices on the LAN.
WAN interface: indicates the interface through which the device exchanges data with the devices on the WAN.

On the USG2100, the rates of LAN and WAN interfaces are all 100 Mbit/s.

Other related questions:
Whether the L2 interface of USG firewalls can function as a WAN interface?
The L2 interface of USG firewalls can function as a WAN interface. The WAN interface mentioned here refers to an interface connected to an external network, generally an optical fiber of a carrier. IP addresses cannot be directly configured for L2 interfaces. Therefore, you can use the VLANIF interface as the WAN interface (L3 interface). The configuration is as follows: 1. Choose Network > Interface. Create a VLAN interface, and set parameters such as the IP address, mask, and gateway.2. Choose Network > Interface. Change the mode of the corresponding L2 interface to Access, and add the configured VLAN interface.

Does an AR router support an interface being switched over between Layer 2 and Layer 3
The following AR routers support an interface being switched over between Layer 2 and Layer 3. By default, Ethernet interfaces are Layer 2 interfaces. Run the undo portswitch command to switch the interfaces from Layer 2 mode to Layer 3 mode, and run the portswitch command to switch the interfaces back to Layer 2 mode. V200R006C00 and earlier versions: - AR150 and AR200 series: Eth0/0/0 - AR120-S series: Eth0/0/0~Eth0/0/3 - AR150-S, AR160-S, and AR200-S series (except for AR151-S2): Eth0/0/0 - AR151-S2: GE0/0/0 - AR160 series: GE0/0/0 - AR1220F: Eth0/0/0~Eth0/0/7 - AR2201-48FE, AR2202-48FE, and AR2201-48FE-S: Eth0/0/0 and Eth0/0/47 V200R007C00: - AR120 and AR150 series, AR120-S series, AR151-S, AR151W-P-S, and AR151G-U-S: Eth0/0/0~Eth0/0/3 - AR160 series, AR509G-L-D-H, AR110-S series, AR151-S2 and AR160-S series: GE0/0/0~GE0/0/3 - AR200 series, AR1220, AR1220V, AR1220W, AR1220VW, AR1220F, AR200-S series, AR1220-S, AR1220W-S, and AR1220F-S: Eth0/0/0~Eth0/0/7 - AR1220C, AR1220E, AR1220EV, AR1220EVW, and AR1220E-S: GE0/0/0~GE0/0/7 - AR2201-48FE and AR2202-48FE: Eth0/0/0~Eth0/0/47 - AR2204-51GE-P: GE0/0/3~GE0/0/50 - AR2204-27GE-P, AR2204-27GE, and AR2201-48FE-S: GE0/0/3~GE0/0/26 V200R008C00: - AR120 (except for AR129CGVW-L) and AR150 series, AR120-S series, AR151-S, AR151W-P-S, and AR151G-U-S: Eth0/0/0~Eth0/0/3 -AR100 series, AR160 series, AR129CGVW-L, AR503EW, AR503EDGW-Lc, AR509CG-Lt, AR509CG-Lc, AR509G-Lc, AR515GW-LM9-D and AR509G-L-D-H, AR100-S series, AR110-S series, AR151-S2 and AR160-S series: GE0/0/0~GE0/0/3 - AR200 series, AR1220, AR1220V, AR1220W, AR1220VW, and AR1220F, AR200-S series, AR1220-S, AR1220W-S, and AR1220F-S series: Eth0/0/0~Eth0/0/7 - AR1220C, AR1220E, AR1220EV and AR1220EVW, and AR1220E-S: GE0/0/0~GE0/0/7 - AR2201-48FE, AR2202-48FE, and AR2201-48FE-S: Eth0/0/0 and Eth0/0/47 - AR2204-51GE-P, AR2204-51GE-R, and AR2204-51GE: GE0/0/3~GE0/0/50 - AR2204-27GE-P and AR2204-27GE: GE0/0/3~GE0/0/26 At present, the interfaces of all cards do not support Layer 2 and Layer 3 interface switchover.

Differences between 10GE LAN and 10GE WAN
1. 10GE LAN services: Ethernet MAC frames are processed based on 66B/64B line coding and then are directly transmitted over an optical fiber. 10GE LAN services are mainly used for interconnection between LANs and used in point-to-point application scenarios using fibers or WDM equipment. 2. 10GE WAN services: Ethernet MAC frames are processed based on 66B/64B line coding, encapsulated into standard SDH/SONET frames, and then directly transmitted over an optical fiber. 10GE MAN services are mainly used for interconnection between LANs or MANs and used in point-to-point application scenarios using fibers or SDH/WDM equipment. 3. For the WDM system, 10GE WAN services can be considered 10G SDH signals. Therefore, SDH signals need to be selected on the client side. 4. 10GE LAN signals are also Ethernet signals. Therefore, LAN signals need to be selected on the client side. 5. The payload rate of 10GE LAN signals is 10.3125 Gbit/s while that of 10GE WAN signals is 9.953 Gbit/s.

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