Graphcore IPU-POD128, Build And Test Manual, Page: 78 / 113

IPU-POD128 build and test guide
Note:
The VLAN assignment for the datacentre uplink ports will be site and configuration specific. In the default
configuration file these ports are disabled.
A switch configuration file can be provided – please contact Graphcore support for details. This configuration file
can be applied using one of the standard methods described by the switch manufacturer.
4.2.5 IPU-POD
64
VLAN assignments
Each switch is configured independently based on the number of interfaces needed for the IPU-POD size (in this
case IPU-POD
64
). This section describes the interfaces used in an IPU-POD
64
with figures showing interface
allocation.
Fig. 4.5 shows the VLAN assignments for the server connecting between the server(s) and the switches. Four
server-facing ports are shown for each group on the switches to allow for up to 4 servers in the POD.
Fig. 4.5: Dell R6525 server VLAN connectivity
Fig. 4.6 shows the VLAN assignments for the IPU-M2000s connecting to the switches.
Fig. 4.6: IPU-M2000 server VLAN connectivity
Version: latest (2021-11-25) 74