Type,Description,Reference,Allowed in Generic-Metric
0,IGP Metric,"[RFC9350, Section 5.1]",No
1,"Min Unidirectional Link Delay as defined in [RFC8570, Section 4.2] and
        [RFC7471, Section 4.2]","[RFC9350, Section 5.1]",No
2,"Traffic Engineering Default Metric as defined in [RFC5305, Section 3.7] and Traffic Engineering Metric as defined in [RFC3630, Section 2.5.5]","[RFC9350, Section 5.1]",No
3,Bandwidth Metric,[RFC9843],Yes
4-127,Unassigned,,
128-255,Reserved for User-Defined Metric,[RFC9843],Yes