neutron_lib.agent.l2_extension module

class neutron_lib.agent.l2_extension.L2AgentExtension

Bases: AgentExtension

Define stable abstract interface for l2 agent extensions.

An agent extension extends the agent core functionality.

abstract delete_port(context, data)

Handle a port delete event.

Parameters:

  • context – RPC context.

  • data – Port data.

abstract handle_port(context, data)

Handle a port add/update event.

This can be called on either create or update, depending on the code flow. Thus, it’s this function’s responsibility to check what actually changed.

Parameters:

  • context – RPC context.

  • data – Port data.

initialize(connection, driver_type)

Initialize agent extension.

Parameters:

  • connection – RPC connection that can be reused by the extension to define its RPC endpoints

  • driver_type – String that defines the agent type to the extension. Can be used to choose the right backend implementation.