Switch type ASX-4000.

This switch type can also contain up to four boards, but unlike the ASX-1x00, all of them are managed by a single SNMP agent running on a separate SCP board in the switch enclosure. A second SCP board can be included for redundancy, but this one will only act as a backup SCP, so that the entire compound is managed at any given point by a single agent. In this case it is necessary to map all board-related management information to the physical modules controlled by each board. An advantage of this switch type in relation to an ASX-1x00 is that there is no replication of management information related to the power supply modules (up to five units) and fan banks (two units).