| 摘要 |
A method is disclosed for the collection of performance metrics by establishing service operations administration and maintenance (OAM) sessions between an actuator and a plurality of reflectors in a communication network. Test packets from an actuator simultaneously reach a plurality of reflectors along a test path. Each single test packet results into a plurality of test results, one per reflector, with quasi-synchronous performance metrics to sectionalize a network and more efficiently isolate fault or performance problems without the need for additional test packets to isolate the issue. Another method is disclosed wherein an actuator generates and transmits a plurality of simultaneous test packets, one per NID device, resulting into a plurality of test results, one per reflector, with quasi-synchronous performance metrics to sectionalize a network and more efficiently isolate fault or performance problems without the need for additional test packets to isolate the issue. |
| 主权项 |
1. A method of establishing service operations administration and maintenance (OAM) sessions in a communication network, the method comprising:
monitoring, by a first reflector and a second reflector, any test packets transmitted by an actuator which contain a predetermined identifier; transmitting by the actuator a test packet configured with the predetermined identifier to the first reflector, the predetermined identifier comprising a layer 2 actuator address; forwarding, by the first reflector, the test packet the second reflector downstream along a test path with respect to the first reflector; generating, by the first and second reflectors, a test reply to the actuator, each of the test replies generated back to the actuator incorporating a unique reflector identifier, the unique reflector identifier comprising a layer 2 reflector address and a repurposed uplink sequence number and using bits of an uplink sequence number to encode a unique reflector identifier, the unique reflector identifier defined by the first reflector and the second reflector via a signaling exchange including a Two-Way Active Measurement Protocol (TWAMP) control plane or via a configuration method, including at least one of
Command Line Interface (CLI),web-based configuration, andExtensible Markup Language (XML); the actuator generating a plurality of TWAMP requests, the plurality of TWAMP requests encapsulated as UDP packets, each UDP packet having a port number, the port number of each of the plurality of TWAMP requests being set to a unique pre-agreed value for the first reflector and the second reflector, the actuator transmitting the plurality of TWAMP requests in order to minimize the delay between the plurality of TWAMP requests; and using the test replies to sectionalize the communication network to isolate faults and performance problems. |
