MIB support for media attachment unit (MAU) information

Junos OS supports standard and enterprise-specific MIBs that allow users to gather information about MAUs connected to those devices. The devices populate the Entity (RFC4133) and Entity State (RFC4268) standard SNMP MIBs, and a new MIB table, ifJnxMediaTable, which is part of the Juniper enterprise-specific Interface MIB extensions. The objects in ifJnxMediaTable represent MAU information such as media type, connector type, link mode, and link speed. Users can gather this information using the CLI command show snmp mib or other remote SNMP MIB object access methods.