Sophia:Network

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

See also: Network Admins | Network survival guide

IP networks in use

You have to use a public network range to run an experiment between several Grid5000 sites.

Public Networks

• computing : 138.96.20.0/22
• virtual : 10.164.0.0/14

Local Networks

• admin : 10.6.1.0/24
• ipmi : 10.96.20.0/24

Network

Physical view of the compute network

Gigabit Ethernet

Helios Cluster (Sun X4100)

All the nodes are connected in gigabit ethernet to 2 Foudry EdgeIron switches (one Edgeiron 48GS and one EdgeIron24GS). The switches are interconnected using a 2x10Gbps stack (10GBps in each direction). The nodes are connected to the following switches:

• edgeiron48gs : helios01 to helios48 (48 nodes)
• edgeiron24gs : helios49 to helios56 (8 nodes)

You can choose the switch for your reservation with OAR, using the switch name: oarsub -l nodes=15 -p "switch='XXX'"

OS used: 2.2.6.35

Sol Cluster (Sun X2200 M2)

All the nodes are connected (in a non blocking way) to the main Foundry FastIron Super X switch.

47 nodes (from sol-1 to sol-47) have a second Ethernet interface connected to 2 Cisco 3750 stacked switches.

• IP addressing for eth1: sol-{1-47}-eth1, using the 172.16.128.0/24 network ( 172.16.128.154 can be used as a gateway)

The Cisco are interconnected to the main FastIron router with a single 1Gbps link. A separate VLAN is used.

Suno Cluster (Dell R410)

All the nodes are connected (in a non blocking way) to the main Foundry FastIron Super X switch.

Topology

The main switch is a Foundry FastIron Super X. It has 2 dual 10GB modules, 4 modules with 24 gigabit ports, and 12 gigabit ports on the management module (so 60 gigabit ports are available). 4 slots are currently free.

The EdgeIron stack (helios) is connected to the FastIron with 2 aggregated 10GB links.

Network usage is available through cricket at: https://helpdesk.grid5000.fr/cricket/grapher.cgi?target=%2Fsophia%2Fgw-sophia.sophia.grid5000.fr

Myrinet

All helios nodes are connected to the 128 ports Myrinet 2000 switch.

You can submit jobs with OAR on Myrinet nodes using the 'myrinet' property: oarsub -l nodes=10 -p "myri2g='YES'".

MX driver is enabled by default on these nodes, IP emulation also.

• IP over MX addressing: helios-{1-56}-myri0 and azur-{1-72}-myri0 (192.168.7.{1-128})
• Myrinet network usage is available through cricket at: https://helpdesk.grid5000.fr/cricket/