Hello, >From OpenFlow specification 1.5, part 4.6 - "Port Changes" (page 17):
[Quote] "A switch configuration, for example using the OpenFlow Configuration Protocol, may add or remove ports from the OpenFlow switch at any time. The switch may change the port state based on the underlying port mechanism, for example if the link is going down (see 7.2.1). The controller or a switch configuration may change the port configuration (see 7.2.1). Any such changes to port state or configuration must be communicated to the OpenFlow controller (see 7.4.3). Port addition, modification or removal never changes the content of the flow tables, in particular flow entries referencing those ports are not modified or removed (flow entries may reference ports via the match or actions). Packet forwarded to non-existent ports are just dropped (see 5.6). Similarly, Port addition, modification and removal never changes the content of the group table, however the behaviour of some groups may change through liveness checking (see 6.7). If a port is deleted and its port number is later reused for a different physical or logical port, any remaining flow entries or group entries still referencing that port number may be effectively re-targeted to the new port, possibly with undesirable results. Therefore, when a port is deleted it is left to the controller to clean up any flow entries or group entries referencing that port, if needed." If I correctly understand, it means that I can't modify existing flow entries upon adding or removing a port. Can I add a new flow entry when a new port is added ? Thank you
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