Abstract:
Embodiments of the present disclosure provide a method and device for establishing backup path, a method and device for selecting backup path. The method comprises a first node in a first IGP domain receiving a response message of successful establishment of a main path from a second node in a second IGP domain through the main path; the first node obtains path information of the main path from the response message; the path information of the main path includes at least SRLG information of a link composing the main path; the first node establishes, according to the path information of the main path, a backup path between the first node and the second node; the SRLG information of a link composing the backup path is different from the SRLG information of the link composing the main path.
Abstract:
Embodiments of the present invention disclose a cell reselection method and a user equipment, and the method includes: receiving, by a user equipment UE, a system message sent by a base station, where the system message includes a domain identifier of a neighboring cell of a source cell accesses by the UE, where the domain identifier is a routing area RA or location area LA or tracking area TA of the neighboring cell, the source cell is controlled by the base station, and there is at least one neighboring cell; judging, whether the domain identifier of the neighboring cell belongs to an RA or LA or TA in a camping forbidden list in the UE; and keeping the UE camping on the source cell if the domain identifier of the neighboring cell belongs to the RA or LA or TA in the camping forbidden list in the UE.