At present time Quidway NE40-8 routers can not support the feature of bundling a few MP groups into one for the case of cE1 boards using. Channels belong to different service boards cannot be added to the same MP group, and the maximum number of E1 contained in a MP group is 8. In case of common channel planning (>8E1) we should know that it’ll be impossible to bundle E1 channels from different cE1 boards (all above information is absent in operation manual).
The maximum number of E1 contained in a MP group for cE1 boards is 8.
It's NE40-8 VRP 5.30 feature
In case of common channel planning (>8E1), we should use such type of information for preventing probable problems.