Class-Based Tunnel Selection: CBTS
Class-Based Tunnel Selection: CBTS EXP-based selection between multiple tunnels to same destination Local mechanism at head-end (no IGP extensions) Tunnel master bundles tunnel members Tunnel selection configured on tunnel master (auto-route, etc.) Bundle members configured with EXP values to carry Bundle members may be configured as default Supports VRF traffic, IP-to-MPLS and MPLS-to-MPLS switching paths Reference: http://meetings.apnic.net/__data/assets/pdf_file/0010/45010/MPLS-TE.pdf