"The dataplane that is to be used for the Segment Routing Local Block.\nWhen MPLS is specified, the local block corresponds to a block of MPLS\nlabels; when IPv6 is specified it corresponds to an IPv6 prefix." . . . . . . . "The dataplane being used to instantiate the SRGB. When MPLS is specified\nthe set of MPLS label blocks that are defined in the mpls-label-blocks\nlist are used to make up the SRGB. When IPv6 is specified, the set of IPv6\nprefixes specified in the ipv6-prefixes list are used." .