SELECTING AND MONITORING A PLURALITY OF SERVICES KEY PERFORMANCE INDICATORS USING TWAMP

摘要

Techniques are described for extending a two-way active measurement protocol (TWAMP) to enable measurement of service key performance indicators (KPIs) in a software defined network (SDN) and network function virtualization (NFV) architecture. The TWAMP extensions enable control messaging to be handled by a TWAMP control client executed on a centralized controller, and data messaging to be handled by a TWAMP session initiator executed on a separate network device. Techniques are also described for extending TWAMP to enable measurement of any of a plurality of service KPIs for a given service supported at a TWAMP server. The service KPIs may include one or more of keepalive measurements, round trip time measurements, path delay measurements, service latency measurements, or service load measurements. The TWAMP extensions for the service KPIs may be used in both conventional network architectures and in SDN and NFV architectures.

主权项

1. A method comprising:
establishing a control connection between a two-way active measurement protocol (TWAMP) control client on a first network device in a network and a TWAMP server on a second network device in the network; negotiating, by the TWAMP control client, a data session for a given service supported at the TWAMP server, the negotiation including selecting one or more service key performance indicators (KPIs) to be measured for the given service; establishing, by the TWAMP control client, the data session for the given service with the TWAMP server; sending, by a TWAMP session initiator on a third network device in the network, one or more TWAMP test packets to the TWAMP server over the data session for the given service; and sending, by the TWAMP server in response to the one or more TWAMP test packets, service data measurements for the selected service KPIs for the given service over the data session to the TWAMP session initiator.