Comprehensive and Detailed In-Depth Explanation:
To supportSR-MPLS (Segment Routing over MPLS),OSPFusesType 10 Opaque LSAsto advertiseSegment Routing (SR) capabilities and information.
Type 10 Opaque LSA (B): Used fordistributing application-specific informationwithin an OSPF area. In SR-MPLS, it carries theSID/Label mappingsand other SR-related information.
Type 7 NSSA External LSA (A):Used to advertise external routes within an NSSA, not related to SR-MPLS.
Type 1 Router LSA (C):Advertises the router’s interfaces and links but does not carry SR-specific information.
Type 2 Network LSA (D):Advertises the links of abroadcast or NBMA network, not used for SR-MPLS.
Therefore, the correct answer isB (Type 10 Opaque LSA), as it enables theadvertisement of SR information.
[Reference:, Huawei HCIE Datacom Official Certification Guide, Huawei SR-MPLS Configuration Guide, RFC 8665: Segment Routing with OSPFv2, ===========, , , ]
