OSPF: TWAMP Light link delay measurement and advertising

You can measure and advertise various performance metrics in IP networks with scalability through probe messages that are sent by the Two-Way Active Measurement Protocol (TWAMP) Light. OSPF receives probe messages and the measured values from TWAMP Light. OSPF advertises these messages as TLVs in packets. You can use these metrics to make path-selection decisions based on the network performance.