Some point about using WAN ethernet interface of NE5000E.
1. WAN interface should be connectted to SDH/SONET transmission or another WAN interface.
Packet will be encapsulated into a SDH frame,being as the patload of STM-N frame, when forwarding out the WAN interface.
For standard Ethernet, there is no SDH encapsulation, and NE5000E just supports Ethernet_II type, so the WAN interface connot connect to standard Ethernet interface.
And it cannot change the WAN interface to standard ethernet inteface through command for NE5000E.
2.For WAN interface, C2 and J1 on the sending end must be the same as that on the receiving end, which can be configed using command 'flag' under interface view.On the network s of the same carrier, J0 can be set as any character. However, on the boarders of the two networks of two different carriers, J0 on the receiving end must be the same as that on the sending end.
j0: specifies the regeneration section trace byte.
j1 indicates the path trace byte, which belongs to higher-order path overhead. It tests the whether two ports are in the continuous connection.
C2:specifies the path signal label byte, which belongs to the higher-order path overhead. It indicates the multiplex structure of VC frame and the property of information payload.