This is the human-readable name of the Class-of-Service profile attached to this co-routed tunnel, the readable counterpart to its numeric CoS profile index. An admin uses this name to audit priority assignment for bidirectional circuits without needing to look up index numbers in a separate table. For example, a name like cbr-emulation-profile tells the admin this circuit is treated with the strict bandwidth/latency guarantees typical of constant-bit-rate services.