Consist Network address
All devices connected to the ECN that support IP communication need to have one or more Consist network addresses, which are unique within the Consist.
The Consist network should use Class A private IPv4 addresses.
If the following conditions are met, use the addresses from 10.0.0.0 to 10.127.255.255 (10.0/9):
•Use Class A private addresses
•The ECN is connected to the ETB
•The addresses of the Consist network are different from those of the Train network
The binary form of 10.0.0.0 to 10.127.255.255 is 00001010.0ddddddd.dddddddd.dddddddd / 9.
[d]: This field can be widely used for host identification in the ECN and can be segmented.
Train Network address
When communicating on the ETB, the Train network address needs to be used. Not all EDs require a Train network address; some only need a local ECN address. Every time the train starts, the Train network address will change.
The Train network address and the Consist network address can be the same or different. If they are different, the ECN needs to support the mapping between the Train network address and the Consist network address.
The binary form of the Train Network: 00001010.1bbxssss.sshhhhhh.hhhhhhhh / 18
|
Notation |
Description |
|
[b] |
The identifier of the ETB to which the ECN is connected (0 for TCMS, 1 for multimedia, 2 not specialized, 3 not specialized) |
|
[x] |
Reserved, with a value of 0 |
|
[s] |
Consist Network ID, where 0 is reserved for the ETB backbone network |
|
[h] |
A unique host identifier within the ECN. A Consist can support a maximum of 16,382 hosts. Some high-order bytes can be used to define subnets within the Consist. In this case, the address mask on the ECN side should take this situation into account (it should be extended). |
