An error message. See Section 5.4.4 of the OpenFlow 1.0 specification.
module HelloFailed : sig ... end
module BadRequest : sig ... end
module BadAction : sig ... end
module FlowModFailed : sig ... end
module PortModFailed : sig ... end
module QueueOpFailed : sig ... end
type c
=
| HelloFailed of HelloFailed.t |
| BadRequest of BadRequest.t |
| BadAction of BadAction.t |
| FlowModFailed of FlowModFailed.t |
| PortModFailed of PortModFailed.t |
| QueueOpFailed of QueueOpFailed.t |
Each error is composed of a pair (error_code, data)