Grid5000:Network

Network: Global | Grenoble | Lille | Luxembourg | Lyon | Nancy | Nantes | Rennes | Sophia | Strasbourg | Toulouse

	Note
	This page provides an overview of Grid'5000 network infrastructure. Other useful pages: Network monitoring section of the Status page Virtualization on Grid'5000 tutorial (provides introduction to Subnet reservation) Network reconfiguration tutorial (provides introduction to KaVLAN; there's also another more advanced tutorial)

Grid'5000 Network Infrastructure

Backbone Network

Grid'5000 backbone network infrastructure is provided by RENATER. RENATER is the French National Telecommunication Network for Technology, Education and Research. More information can be found on renater.fr. RENATER offers about 30 POPs (Points Of Presence) in France, at least one POP for each region, which metropolitan and regional networks are connected on. More than 600 sites (Universities, Research Centers, ..) are interconnected through RENATER.

Renater's WDM infrastructure

10Gbps lambda activated for Grid'5000 in Renater's Dark Fiber infrastructure

Grid5000 IP Network

The actual phase of the network is RENATER-5, the deployment has been completed by January 2009. The "standard" architecture is based on 10Gbit/s dark fibers and provides IP transit connectivity, interconnection with GEANT-2 (http://www.geant2.net/), overseas territories and the SFINX (Global Internet exchange).

All Grid'5000 sites (with the exception of Nantes) are connected to dedicated 10Gbit/s lambdas on a DWDM infrastructure (see Wikipedia: Wavelength-division Multiplexing for more info).

Nantes is connected using an L2 VPN.

Grid'5000 sites networks

Grid'5000 sites provide access to a variety of network technologies (both Ethernet and high-performance networks such as InfiniBand). More information is available on the following pages:

• Grenoble
• Lille
• Luxembourg
• Lyon
• Nancy
• Nantes
• Rennes
• Sophia

The list of high performance networks is available on this page.

Address space for virtual machines

Grid'5000 has two different mechanisms to provide IP addresses to virtual machines: subnet reservation and KaVLAN.

• Subnet reservation provides a mean to allocate IP addresses in the production (= default) network. This provides a way to avoid conflicts between users, but does not provide isolation: all machines are still in the same L2 network. Subnet reservation is documented in the Virtualization on the standard environment tutorial, and on the Subnet reservation page.
• KaVLAN provides network isolation through dynamic switches and routers reconfiguration, for the duration of an experiment. Inside a KaVLAN network, users are free to allocate IP addresses as needed. However, some IP ranges are routed to/from the KaVLAN network. KaVLAN is documented in the Network reconfiguration tutorial (which provides an introduction to KaVLAN), in the Network isolation on Grid'5000 tutorial (which is a more advanced KaVLAN tutorial), and on the KaVLAN page.

Tables of available IP networks

Production network and subnet reservation

Here are the private IPv4 networks allocated to every site:

Site	State	Production network	Administration network	High Perf network (ib/opa)	Kavlan network	Virtualization
Bordeaux		172.16.0.0/20	172.17.0.0/20	172.18.0.0/20	10.0.0.0/14	10.128.0.0/14
Grenoble		172.16.16.0/20	172.17.16.0/20	172.18.16.0/20	10.4.0.0/14	10.132.0.0/14
Lille		172.16.32.0/20	172.17.32.0/20	172.18.32.0/20	10.8.0.0/14	10.136.0.0/14
Lyon		172.16.48.0/20	172.17.48.0/20	172.18.48.0/20	10.12.0.0/14	10.140.0.0/14
Nancy		172.16.64.0/20	172.17.64.0/20	172.18.64.0/20	10.16.0.0/14	10.144.0.0/14
Orsay		172.16.80.0/20	172.17.80.0/20	172.18.80.0/20	10.20.0.0/14	10.148.0.0/14 + 10.152.0.0/14
Rennes		172.16.96.0/20	172.17.96.0/20	172.18.96.0/20	10.24.0.0/14	10.156.0.0/14
Toulouse		172.16.112.0/20	172.17.112.0/20	172.18.112.0/20	10.28.0.0/14	10.160.0.0/14
Sophia		172.16.128.0/20	172.17.128.0/20	172.18.128.0/20	10.32.0.0/14	10.164.0.0/14
Strasbourg (ex Reims)		172.16.160.0/20	172.17.160.0/20	172.18.160.0/20	10.36.0.0/14	10.168.0.0/14
Luxembourg		172.16.176.0/20	172.17.176.0/20	172.18.176.0/20	10.40.0.0/14	10.172.0.0/14
Nantes		172.16.192.0/20	172.17.192.0/20	172.18.192.0/20	10.44.0.0/14	10.176.0.0/14
Louvain Orléans		172.16.208.0/20	172.17.208.0/20	172.18.208.0/20	10.48.0.0/14	10.180.0.0/14
Qualification		172.16.240.0/20	172.17.240.0/20	172.18.240.0/20		10.252.0.0/14

Here are the IPv6 networks allocated to every site (these are global scope networks, thus routable on the internet):

Site	State	Production network	Administration network	High Perf network (ib/opa)	Kavlan networks	Virtualization
Grenoble		2001:0660:4406:0100::/64	2001:0660:4406:0110::/64	2001:0660:4406:0120::/64	2001:0660:4406:0180::/58	TBD
Lille		2001:0660:4406:0200::/64	2001:0660:4406:0210::/64	2001:0660:4406:0220::/64	2001:0660:4406:0280::/58	TBD
Luxembourg		2001:0660:4406:0300::/64	2001:0660:4406:0310::/64	2001:0660:4406:0320::/64	2001:0660:4406:0380::/58	TBD
Lyon		2001:0660:4406:0400::/64	2001:0660:4406:0410::/64	2001:0660:4406:0420::/64	2001:0660:4406:0480::/58	TBD
Nancy		2001:0660:4406:0500::/64	2001:0660:4406:0510::/64	2001:0660:4406:0520::/64	2001:0660:4406:0580::/58	TBD
Nantes		2001:0660:4406:0600::/64	2001:0660:4406:0610::/64	2001:0660:4406:0620::/64	2001:0660:4406:0680::/58	TBD
Rennes		2001:0660:4406:0700::/64	2001:0660:4406:0710::/64	2001:0660:4406:0720::/64	2001:0660:4406:0780::/58	TBD
Sophia		2001:0660:4406:0800::/64	2001:0660:4406:0810::/64	2001:0660:4406:0820::/64	2001:0660:4406:0880::/58	TBD
Toulouse		2001:0660:4406:0900::/64	2001:0660:4406:0910::/64	2001:0660:4406:0920::/64	2001:0660:4406:0980::/58	TBD
Strasbourg		2001:0660:4406:0a00::/64	2001:0660:4406:0a10::/64	2001:0660:4406:0a20::/64	2001:0660:4406:0a80::/58	TBD
Louvain		2001:0660:4406:0b00::/64	2001:0660:4406:0b10::/64	2001:0660:4406:0b20::/64	2001:0660:4406:0b80::/58	TBD

Virtual subnets configuration

Site	Block	Gateway	DHCP server
Bordeaux	10.128.0.0/14	10.131.255.254	10.131.255.253
Grenoble	10.132.0.0/14	10.135.255.254	10.135.255.253
Lille	10.136.0.0/14	10.139.255.254	10.139.255.253
Lyon	10.140.0.0/14	10.143.255.254	10.143.255.253
Nancy	10.144.0.0/14	10.147.255.254	10.147.255.253
Orsay I	10.148.0.0/14	10.151.255.254	10.151.255.253
Orsay II	10.152.0.0/14	10.155.255.254	10.155.255.253
Rennes	10.156.0.0/14	10.159.255.254	10.159.255.253
Toulouse	10.160.0.0/14	10.163.255.254	10.163.255.253
Sophia	10.164.0.0/14	10.167.255.254	10.167.255.253
Strasbourg Reims	10.168.0.0/14	10.171.255.254	10.171.255.253
Luxembourg	10.172.0.0/14	10.175.255.254	10.175.255.253
Nantes	10.176.0.0/14	10.179.255.254	10.179.255.253
Louvain	10.180.0.0/14	10.181.255.254	10.181.255.253
VPN nets		n/a	n/a
Qualif	10.252.0.0/14	10.255.255.254	10.255.255.253

KaVLAN

KaVLAN deployment status

Sites	Version	Status
Grenoble	1.2.7-1
Lille	1.2.7-1
Luxembourg	1.2.7-1
Lyon	1.2.7-1
Nancy	1.2.7-1
Nantes	1.2.7-1
Rennes	1.2.7-1
Sophia	1.2.7-1
Toulouse	1.2.7-1
Strasbourg	1.2.7-1
Louvain	1.2.7-1

KaVLAN networks

Local VLANs (non-routed)

Site	KAVLAN-1	KAVLAN-2	KAVLAN-3
All	192.168.192.0/20	192.168.208.0/20	192.168.224.0/20

Routed VLANs

Site	KAVLAN-4	KAVLAN-5	KAVLAN-6	KAVLAN-7	KAVLAN-8	KAVLAN-9
Bordeaux	10.0.0.0/18	10.0.64.0/18	10.0.128.0/18	10.0.192.0/18	10.1.0.0/18	10.1.64.0/18
Grenoble	10.4.0.0/18	10.4.64.0/18	10.4.128.0/18	10.4.192.0/18	10.5.0.0/18	10.5.64.0/18
Lille	10.8.0.0/18	10.8.64.0/18	10.8.128.0/18	10.8.192.0/18	10.9.0.0/18	10.9.64.0/18
Lyon	10.12.0.0/18	10.12.64.0/18	10.12.128.0/18	10.12.192.0/18	10.13.0.0/18	10.13.64.0/18
Nancy	10.16.0.0/18	10.16.64.0/18	10.16.128.0/18	10.16.192.0/18	10.17.0.0/18	10.17.64.0/18
Orsay	10.20.0.0/18	10.20.64.0/18	10.20.128.0/18	10.20.192.0/18	10.21.0.0/18	10.21.64.0/18
Rennes	10.24.0.0/18	10.24.64.0/18	10.24.128.0/18	10.24.192.0/18	10.25.0.0/18	10.25.64.0/18
Toulouse	10.28.0.0/18	10.28.64.0/18	10.28.128.0/18	10.28.192.0/18	10.29.0.0/18	10.29.64.0/18
Sophia	10.32.0.0/18	10.32.64.0/18	10.32.128.0/18	10.32.192.0/18	10.33.0.0/18	10.33.64.0/18
Strasbourg Reims	10.36.0.0/18	10.36.64.0/18	10.36.128.0/18	10.36.192.0/18	10.37.0.0/18	10.37.64.0/18
Luxembourg	10.40.0.0/18	10.40.64.0/18	10.40.128.0/18	10.40.192.0/18	10.41.0.0/18	10.41.64.0/18
Nantes	10.44.0.0/18	10.44.64.0/18	10.44.128.0/18	10.44.192.0/18	10.45.0.0/18	10.45.64.0/18
Louvain	10.48.0.0/18	10.48.64.0/18	10.48.128.0/18	10.48.192.0/18	10.49.0.0/18	10.49.64.0/18

	Note
	At the end of each network, address x.x.x.253 is used by Kavlan server

Global VLANs

Site	Global Vlan	Subnet	Router IP
Bordeaux	KAVLAN-10	10.3.192.0/18	10.3.255.254
Grenoble	KAVLAN-11	10.7.192.0/18	10.7.255.254
Lille	KAVLAN-12	10.11.192.0/18	10.11.255.254
Lyon	KAVLAN-13	10.15.192.0/18	10.15.255.254
Nancy	KAVLAN-14	10.19.192.0/18	10.19.255.254
Orsay	KAVLAN-15	10.23.192.0/18	10.23.255.254
Rennes	KAVLAN-16	10.27.192.0/18	10.27.255.254
Toulouse	KAVLAN-17	10.31.192.0/18	10.31.255.254
Sophia	KAVLAN-18	10.35.192.0/18	10.35.255.254
Strasbourg Reims	KAVLAN-19	10.39.192.0/18	10.39.255.254
Luxembourg	KAVLAN-20	10.43.192.0/18	10.43.255.254
Nantes	KAVLAN-21	10.47.192.0/18	10.47.255.254
Louvain	KAVLAN-22	10.51.192.0/18	10.51.255.254

IP subnet assignments for the sites within a global VLANs

A global VLAN is a /18 subnet (16382 IP addresses). It is split so that every site gets one /23 (510 ip) in the global VLAN address space.

Example for the global VLAN of Lille, KAVLAN-12, whose address space is 10.11.192.0/18:

• Bordeaux: 10.11.192.1 → 10.11.193.254
• Grenoble: 10.11.194.1 → 10.11.195.254
• Lille: 10.11.196.1 → 10.11.197.254
• Lyon: 10.11.198.1 → 10.11.199.254
• Nancy: 10.11.200.1 → 10.11.201.254
• Orsay: 10.11.202.1 → 10.11.203.254
• Rennes: 10.11.204.1 → 10.11.205.254
• Toulouse: 10.11.206.1 → 10.11.207.254
• Sophia: 10.11.208.1 → 10.11.209.254
• Strasbourg Reims: 10.11.210.1 → 10.11.211.254
• Luxembourg: 10.11.212.1 → 10.11.213.254
• Nantes: 10.11.214.1 → 10.11.215.254

Access to the Internet

See FAQ#Is_access_to_the_Internet_possible_from_nodes.3F