33rd Network Management Research Group (NMRG) meeting IETF 89 March 6th 2014 - London, UK 13:00 - 15:00 : Thursday Afternoon Session I - Richmond/Chelsea/Tower - Around 40 people attended the meeting - Q: question, A: answer, C: comment 13:00 - 13:05 : Introduction by Lisandro Granville - Note well - Objective of the meeting . Continue the discussion on autonomics for network management, started in the IETF 88, Vancouver . Presentations will show the first outcomes on autonomics for network management 13:05 - 13:30 : Proactive self-healing mechanisms for IP networks by Laurent Ciavaglia - Q: Can this solution incorporate physical parameters - A: Yes, since the set of parameters taken into account can be extended - C: Take a look at microwave networks. Depending on the time window, reactions can be lost - Q: Can the network evolve to an unstable state if all nodes take unsynchronized decisions? - A: That has not been investigated yet. - Q: How long does it take to train the system? - A: No learning support! Knowledge is explicitly informed by the operator. - Q: How do you build a more general model? - A: To be exploited. - Q: How the operator/user interacts with this solution? - A: No specific user interface has been defined. Refer to slide 17. - C: We should provide high-level user interfaces. Policies could be considered. - Q: Should this effort move on? (from Michael to the audience) - A: Definitely yes (from the audience) 13:30 - 14:00 : Autonomic Network Definitions by Michael Behringer http://tools.ietf.org/html/draft-irtf-nmrg-autonomic-network-definitions-00 - Q: Is it receiver-driven or sender-driven? - A: It’s event-driven and the target network understands the intends - C: Configuration should exist to say WHAT to do and NOT HOW to do - Q: Can the autonomic loops be configured or tuned? - A: Yes. We should have meta-management, i.e., management of the management loops 14:00 - 14:30 : Gap Analysis for Autonomous Networking by Brian Carpenter and Sheng Jiang http://tools.ietf.org/html/draft-jiang-nmrg-an-gap-analysis-00 - Q: Can a network learn from the external world? - A: Yes, the network can learn from the intends. But it also depends on the language used to express intends. - C: In fact that already exists, for example, in OSPF. - C: An intend defines WHAT the network is expected to accomplish, while the knowledge/intelligence of the network provides the HOW’s to accomplish the intends - C: Humans can be present just to agree with a network decisions. One the operator trusts the network decisions, he/she gradually leaves the management loop. - C: In the set of loops, as well on the loops’ life-cycle (e.g., bootstrap, regular operation, adjustments/tuning), define WHERE (in which loops?) and WHEN (in the loops’ life-cycle) should humans be present - Q: Is there a real-life implementation to be shared? - A: That will be present in the NMRG draft. 14:30 - 15:00 : Probe Placement Problem by Dimitri Papadimitriou - Q: Do you assume that there are probes already available in the network ready to be activated? - A: Yes. - Q: Why is this specific to probe placement? Isn’t it a more general problem? - A: To be investigated.