User Manual

206 Configuring the PID format
After changing the fabric PID format and verifying correct fabric operation, resave configuration data by
running the configUpload command.
Before downgrading firmware, change the PID back to supported PIDs such as Core PID. If the database is
automatically converted, save the converted database, and then download the older OS.
Selecting a PID format
All switches in a fabric must use the same PID format, so if you add a switch that uses a different PID format
to a fabric, the switch segments from the fabric. The format you select for your fabric depends on the mix
of switches in the fabric, and to an extent on the specific releases of Fabric OS in use (for example,
Extended Edge PID format is only available in Fabric OS v2.6.2 and later, Fabric OS v3.1.2 and later,
and Fabric OS v4.2.0 and later).
If you are building a new fabric with switches running various Fabric OS versions, use Core PID format to
simplify port-to-area_ID mapping.
Native Core You must:
• Reenable zoning, if there is an active zone set
and it uses port zones.
• If Destination ID (DID) binding is used,
reconfigure persistent binding, and reconfigure
DID list for performance monitor.
Core Native
Extended Edge Core
Core Extended Edge
Table 35 Effects of PID format changes on configurations (continued)
PID format before
change
PID format after
change
Configuration effect?