This read-create octet string holds the explicit route used to set up this LSP, either as configured directly by the administrator or as automatically computed to satisfy constraints, presented as a displayable string of dotted-quad addresses each tagged strict or loose, and it is meaningless if no path identifier or name has been supplied. It lets an administrator define or inspect the precise hop-by-hop route a tunnel must take. An operator engineering a tunnel that must avoid a particular data center and pass strictly through two specific core routers would populate csMplsVrPathExplicitRoute with those routers' addresses marked as strict hops.