Offline discussion is documented in v1->v2 below. There are various considerations to what kind of replication configuration is needed and what is "better" varies with the specific requirements. Feel free to suggest otherwise.
This patch series updates the vtep schema to support source node replication in addition to service node replication per logical switch. The default replication mode is service_node as that was the only mode previously supported. New vtep-ctl commands are added to set/reset the replication mode per logical switch. Setting the replication mode is optional and if no configuration is done, the replication mode is service node. Resetting the replication mode sets the replication mode back to a default of service node. In the event that a physical switch cannot support source node replication, an error is populated in the database that can be read by a controller requesting source node replication mode. All logical switches continue to use service node replication since source node replication cannot be supported. If the controller then resets the replication mode, the physical switch should clear the error state. The vtep emulator is also updated to read the vtep database logical switch replication mode and to support both types of replication. The vtep emulator help documentation is also updated. v1->v2: Offline discussion In this discussion, it was agreed only logical switch level replication mode configuration is needed. The rational was that physical switch level option configuration was only added as a convenience; using a controller, the added benefit is minimal and hence the physical switch level configuration portion is dropped and the logical switch level configuration retained. Although in v1, service node mode is the default replication mode, v2 makes replication mode an option and only source node mode can be optionally configured. If a physical switch cannot support source node replication, then an error should be set in the physical switch table that can be read by a controller. v2->v3: Fixed a couple bugs in ovs-vtep I noticed after v2. Darrell Ball (1): vtep: add source node replication support. tests/vtep-ctl.at | 17 +++++++++++++++ vtep/README.ovs-vtep.md | 19 +++++++++++++++-- vtep/ovs-vtep | 36 +++++++++++++++++++++++++++---- vtep/vtep-ctl.8.in | 9 ++++++++ vtep/vtep-ctl.c | 42 +++++++++++++++++++++++++++++++++++++ vtep/vtep.ovsschema | 9 ++++++-- vtep/vtep.xml | 56 ++++++++++++++++++++++++++++++++++++++++++++----- 7 files changed, 175 insertions(+), 13 deletions(-) -- 1.9.1 _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
