EduCloud

h1. Ryu

h2. Página do projeto

www.osrg.net/ryu

* Network opearting system

* OVS, openflow switch

h2. Sobre o código

h3. Linguagem

Python 2.7

h3. Licença

Apache 2.0 license

h3. Suporte a versões do OpenFLOW

* 1.0 with Nicira Extensions

* 1.2

* 1.3

h3. Requisitos

* ambiente Python 2.7

** python-gevent python-routes python-webob python-paramiko

h3. Independência de linguagem de programação 

Comunicação por mensagens, então, pode conversar com qualquer aplicativo que implemente essas mensagens.

h3. Modularidade

???

h3. Repositório

git://github.com/osrg/ryu.git

h3. Recursos básicos do controlador

* GRE tunneling

* VLAN support

* IPv6

* topology discovery

* MAC based segregation

h3. Aplicações

https://github.com/osrg/ryu/tree/master/ryu/app

* cbench.py

* client.py

* conf_switch_key.py

* gre_tunnel.py

* ofctl_rest.py

* quantum_adapter.py

* rest.py: app/rest

* rest_conf_switch.py

* rest_firewall.py

* rest_nw_id.py

* rest_quantum.py

* rest_router.py

* rest_topology.py

* rest_tunnel.py

* simple_isolation.py

* simple_switch.py

* simple_switch_12.py

* simple_switch_13.py

* simple_switch_lacp.py

* simple_vlan.py

* tunnel_port_updater.py

* wsgi.py

h3. Testes

https://github.com/osrg/ryu/tree/master/ryu/tests

* app

* lib

* ofproto

* packe

* sample

h3. Disponibilidade nas distribuições GNU/Linux 

Pode ser instalado com o gerenciador 'pip'.

h3. Último release / commit

* Aplicações: "a month ago"

* Testes: "a day ago"

* Core: "a day ago"

h2. Documentação

h3. Documentação oficial

http://ryu.readthedocs.org/en/latest/index.html

h3. Tutoriais

https://github.com/osrg/ryu/wiki/OpenFlow_Tutorial

h2. Suporte junto ao OpenStack

Quantum Ryu plugin. VM pré-configurada para testar OpenStack + Ryu.

https://github.com/osrg/ryu/wiki/OpenStack

* Flat networks regardless of the underlying physical network

* Scalable multi-tenant isolations

** tunneling based isolations

** VLAN does not scale larger than 4096

** do not need high-end switches

* Future items:

** integration with quantum IPAM and L3 API

** firewall

** virtual network <--> physical network

** distributed controllers (redundancy)

h3. Communication

'nova requests quantum-server for network configuragion'

OVS <--> Ryu: openflow

Ryu agent <--> Ryu: REST API

Quantum server <--> Ryu: REST API

Ryu agent <--> Quantum db: db access

VIF driver <--> quantum: Quantum API

linux_net driver <--> server: Quantum API

h3. Network Creation (network-node = nova-network + linux_net driver + OVS)

# to nova-network: create netork

# nova network --> quantum server: create net

# quantum server --> Ryu: network <uuid>, <tunnel key>

# quantum server --> nova network: <uuid>

# nova network --> linux_net driver: plug

# linux_net driver --> OVS: create gw-xxx

# linux_net driver --> quantum server: tentant id, network id, dp id, port, mac

# quantum server --> Ryu: network id, dp id, port, mac

# ryu --> OVS:  set flow entryies

h3. Instance creation (compute-node = nova compute + VIF driver + OVS)

# to nova compute: create instance

# nova compute --> quantum server: create port

# quantum server --> nova compute: uuid

# nova compute --> VIF driver: plug

# VIF driver --> OVS: create tap-xxx

# VIF driver --> quantum server: (tenant_id, dp_id, port, mac)

# quantum server --> Ryu: (network_id, dp_id, port, mac)

# Ryu --> OVS: set flow entryies

h3. Node boot up (compute/network-node = OVS + Ryu agent + ryu_v2.ini)

# ryu_v2.ini --> Ryu agent: get ip address

# Ryu agent -->  quantum db: register (dp_id, ip_address)

# quantum db --> Ryu agent: get list of (dp_id, ip_address, and polling)

# Ryu agent --> OVS: create vport_grc to ip address

# Ryu agent --> Ryu: register (dp_id, port_id, remote dp_id)

h2. Quem usa

???

h2. Quem está por trás 

NTT Lab

h2. Outras características