Configuring the System Location for a Device Running JUNOS Software
You can specify the location of each system being managed by SNMP. This string is placed into the MIB II sysLocation object. To configure a system location, include the location statement at the [edit snmp] hierarchy level:
[edit snmp]location location;
If the location contains spaces, enclose it in quotation marks (" ").
To specify the system location:
[edit]snmp {location "Row 11, Rack C";}