RSVP-TE - Administrative Groups for Bypass LSP

Administrative groups, also known as link colors, resource class, or affinity bits, are manually assigned attributes that describe the "color" of links, such that links with the same color conceptually belong to the same class. You can use administrative groups to implement a variety of policy-based label-switched path (LSP) setups. This feature enhances the basic functionality of administrative groups by allowing administrative groups to be used as an additional constraint when calculating paths for bypass LSPs.