kytos/mef_eline

NApp that manages point to point L2 Ethernet Virtual Circuits

OpenAPI Docs

Overview

This Napp allows a user to create a point to point L2 Ethernet Virtual Circuit.

Features

• REST API to create/modify/delete circuits;
• REST API to create/modify/delete circuit scheduling;
• list of circuits in memory and also synchronized to a permanent storage;
• circuits can be installed at time of request or have an installation schedule;
• circuits can use a predefined path or find a dynamic path;
• the NApp will move circuits to another path in case of a link down;
• web UI for circuits management.

Installing

To install this NApp, first, make sure to have the same venv activated as you have kytos installed on:

$ git clone https://github.com/kytos-ng/mef_eline.git
$ cd mef_eline
$ python3 -m pip install --editable .

To install the kytos environment, please follow our development environment setup.

Requirements

• kytos/flow_manager
• kytos/pathfinder
• kytos/topology
• amlight/sdntrace_cp
• MongoDB

Events

Subscribed

• kytos/topology.topology_loaded
• kytos/topology.link_up
• kytos/topology.link_down
• kytos/flow_manager.flow.error
• kytos/flow_manager.flow.removed
• kytos/of_multi_table.enable_table

Published

kytos/mef_eline.created

Event reporting that a L2 circuit was created.

kytos/mef_eline.enable_table

A response from the kytos/of_multi_table.enable_table event to confirm table settings.

{
  'table_group': <object>
}

kytos/mef_eline.evcs_loaded

Event with all evcs that got loaded

{
  '<evc_id>': <dict>
}

kytos/mef_eline.uni_active_updated

Event published when an EVC active state changes due to a UNI going up or down

{
 "id", evc.id,
 "evc_id": evc.id,
 "name": evc.name,
 "metadata": evc.metadata,
 "active": evc._active,
 "enabled": evc._enabled,
 "uni_a": evc.uni_a.as_dict(),
 "uni_z": evc.uni_z.as_dict()}
}

kytos/mef_eline.failover_deployed

Event published when an EVC failover_path gets deployed. flows are the new deployed flows, and removed_flows are the removed ones.

{
 evc.id: {
   "id", evc.id,
   "evc_id": evc.id,
   "name": evc.name,
   "metadata": evc.metadata,
   "active": evc._active,
   "enabled": evc._enabled,
   "uni_a": evc.uni_a.as_dict(),
   "uni_z": evc.uni_z.as_dict(),
   "flows": [],
   "removed_flows": [],
   "error_reason": string,
   "current_path": evc.current_path.as_dict(),
 }
}

kytos/mef_eline.failover_link_down

Event published when an EVC failover_path switches over. flows are the new deployed flows.

{
 evc.id: {
   "id", evc.id,
   "evc_id": evc.id,
   "name": evc.name,
   "metadata": evc.metadata,
   "active": evc._active,
   "enabled": evc._enabled,
   "uni_a": evc.uni_a.as_dict(),
   "uni_z": evc.uni_z.as_dict(),
   "flows": [],
 }
}

kytos/mef_eline.failover_old_path

Event published when an EVC failover related old path gets removed (cleaned up). removed_flows are the removed flows.

{
 evc.id: {
   "id", evc.id,
   "evc_id": evc.id,
   "name": evc.name,
   "metadata": evc.metadata,
   "active": evc._active,
   "enabled": evc._enabled,
   "uni_a": evc.uni_a.as_dict(),
   "uni_z": evc.uni_z.as_dict(),
   "removed_flows": [],
   "current_path": evc.current_path.as_dict(),
 }
}