Luxembourg:Network: Difference between revisions

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== VLAN routing ==
=== Network routing ===


{| style="border: 1px solid darkgray;"
* VLAN <code class='host'>prod</code>: '''172.16.176.0/20'''
|-
** Computing nodes
! scope="col" | Name
*** eth0 (1GbE) 172.16.176.0/23
! scope="col" | VLAN
*** eth1 (1GbE) 172.16.178.0/23
! scope="col" | Network
** Gateway: 172.16.191.254 (SUP720-10G)
! scope="col" | Gateway (hardware supervisor)
** Servers 172.16.191.0/24
|-
*** phys. eth0 (1GbE) 172.16.191.[1-99]
| admin || VLAN 10 || 172.17.176.0/20 || Gw 172.17.191.254 ( SUP720-10G)  
*** virtual eth0 (1GbE) 172.16.191.[100-99]
|-
 
| prod || VLAN 30 ||  172.16.176.0 /20 || Gw 172.16.191.254 ( SUP720-10G )
* VLAN <code class='host'>admin</code>: '''172.17.176.0/20'''
|          ||                || 10.172.0.0 /14      || Gw 10.175.255.254 sec ( SUP720-10G )
** Computing nodes
|-
*** BMC: 172.17.176.0/23
| UL_DMZprivate || VLAN 40 || 
** Gateway: 172.17.191.254 (SUP720-10G)
|-
** Servers 172.17.190.0/23
| hsc || VLAN 50 ||
*** BMC: 172.17.190.0/24
|-
*** phys. eth1 (1GbE) 172.16.191.[1-99]
| Grid5000 || VLAN 550 ||
*** virtual eth1 (1GbE) 172.16.191.[100-99]
|-
| BLACKHOLE || VLAN 1000 ||
|-
|}

Revision as of 13:29, 28 September 2010

Plans

General overview

Cluster Lux5000.png

Network Architecture

The Luxembourg site is built over two central network components:

  • A Core Layer 2 / 3 switch of type Cisco Catalyst 6506E, including one single supervisor (VS-S720-10G) and two line Gigabit copper cards (WS-X6748-GE-TX). This Switch is connecting :
    • the 22 computing Nodes in 1GbE mode to the prod VLAN
    • the 22 computing Nodes in 1GbE mode to the admin VLAN
    • the different frontends and the NFS server (in both prod and admin VLAN)
    • the Renater backbone (VLAN 550)
    • the University of Luxembourg network
  • A server farm of type Cisco Nexus 5020, responsible for connecting the 22 computing nodes in 10GbE mode (VLAN hsc)

The global architecture and network organization is based on the Network Golden rules

Connectivity to GRID5000

The connectivity to GRID 5000 is operated by the RESTENA foundation (for the luxembourgian side) in collaboration with Renater. The dedicated Grid5000 line has been prolongated from Nancy toward Luxembourg (see Global network map) via Esch/Elzette.

VLANs

Name VLAN Description
admin VLAN 10 administration network containing all BMC interfaces and an interface on each server
prod VLAN 30 production network containing all nodes ethernet interfaces together with all servers and virtual machines primary ethernet interfaces
UL_DMZprivate VLAN 40 Gateway to the UL internal DMZ
hsc VLAN 50 High speed computing network (10GbE)
Grid5000 VLAN 550 Gateway to Grid5000/Renater 5
BLACKHOLE VLAN 1000 local usage, unused ports

Network routing

  • VLAN prod: 172.16.176.0/20
    • Computing nodes
      • eth0 (1GbE) 172.16.176.0/23
      • eth1 (1GbE) 172.16.178.0/23
    • Gateway: 172.16.191.254 (SUP720-10G)
    • Servers 172.16.191.0/24
      • phys. eth0 (1GbE) 172.16.191.[1-99]
      • virtual eth0 (1GbE) 172.16.191.[100-99]
  • VLAN admin: 172.17.176.0/20
    • Computing nodes
      • BMC: 172.17.176.0/23
    • Gateway: 172.17.191.254 (SUP720-10G)
    • Servers 172.17.190.0/23
      • BMC: 172.17.190.0/24
      • phys. eth1 (1GbE) 172.16.191.[1-99]
      • virtual eth1 (1GbE) 172.16.191.[100-99]
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