Here are my minutes. I'm sure some of my interpretation is wrong, so corrections are welcome. NML conference call Feb 10, 2011. Participants: Aaron Brown Freek Dijkstra Chin Guok Guy Roberts Excused: Roman Łapacz Jason Zurawski Status Circuit Monitoring Architecture ====================================== Roman, Aaron and others are discussing (off-list) an architecture for circuit monitoring (this is an improvement of the current E2Emon architecture). Aaron gave some background on it's status and how it relates to NML. There is mostly agreement in the discussion. Schema fragments are mailed back and forth. The architecture considers a topology with a circuit, which is composed of segments (each segment is in a different domain). The idea is that a client uses the circuit identifier to query information in a topology service, and receives (among others) a list of segment identifiers. It then uses a lookup service to know which domain to query for each segment, and can then ask detailed information at each domain about each segment. The current discussion is on the protocol and details, but the topology requirements are mostly clear. Aaron will present this as a use case to the NML-WG. It seems that we're mostly in agreement here already. Status NSI-WG ============= Guy and Chin gave some background on the status of the NSI working group. The NSI working group is currently discussion the STP and SDP definition. An STP is a demarcation point between two domains. One of the questions is how this maps to the topology in NML. The NSI-WG thoughts are in framework document (GFD.173). Jeroen van der Ham went through it and gave useful feedback. The STP is traditionally seen as (a pointer to) a NML port. In recent discussion, it is wondered if a link can also be a demarcation point, thus if a STP can also (point to a) fiber. This may be the case for trans-oceanic fibers that a managed by a third party. Discussion is not finished. It is probably not required to get involved at this stage. As soon as the NSI-WG has reached consensus, they will present that as a requirement to the NML-WG. Status serial compound call #1 ============================== Freek requested input on his email of February 2 for those who had not replied. There was no request for clarification at the call, and Freek indicated that he would be happy to provide details later if required.