How can 12 VCN540s be stacked?

Run the startup system-software command and the startup saved-configuration command in the system view to specify the system software and configuration file for the next startup, respectively. The following uses newbasicsoft.cc (system software for the next startup) and vrpcfg.zip (configuration file) as an example: # Specify the system software to be loaded for the next startup. startup system-software newbasicsoft.cc # Specify the configuration file to be loaded for the next startup. startup saved-configuration vrpcfg.zip If the AR has dual MPUs, specify the system software for the next startup on the slave MPU. startup system-software newbasicsoft.cc slave-board

Calculation method of the SDH lower-order cross-connect capacity: For example, if the queried VC-12 quantity of lower-order cross-connections is 2016, how do I calculate the lower-order cross-connect capacity? First, convert the VC-12 quantity to the VC-4 quantity. As one VC-4 contains 63 VC-12s, the VC-4 quantity is 32 (2016/63). Second, calculate the capacity. As the capacity of 64 VC-4s is 10 Gbit/s, the capacity of 32 VC-4s is 5 Gbit/s.

Relationship of SDH VC-4, VC-3, and VC-12: One VC-4 contains three VC-3s and 63 VC-12s.

12 Gbit/s SAS expansion modules are described as follows: A 12 Gbit/s SAS interface module provides four 4 x 12 Gbit/s mini SAS HD expansion ports that provide connectivity to disk enclosures. The SAS expansion module connects to the back-end disk array through mini SAS HD cables. If the transfer rate of the device connected to the expansion port is lower than the rate of the expansion port, the expansion port will automatically adapt to the transfer rate to ensure the connectivity of the data transfer channel and consistency of the data transfer rate.