Default Company Id List - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

Advanced Fibre Channel Features and Concepts
Some HBAs do not discover targets that have FC IDs with the same domain and area. The switch software
maintains a list of tested company IDs that do not exhibit this behavior. These HBAs are allocated with single
FC IDs. If the HBA can discover targets within the same domain and area, a full area is allocated.
To allow further scalability for switches with numerous ports, the switch software maintains a list of HBAs
that can discover targets within the same domain and area. Each HBA is identified by its company ID (also
known as Organizational Unique Identifier, or OUI) used in the pWWN during a fabric log in. A full area is
allocated to the N ports with company IDs that are listed and for the others, a single FC ID is allocated.
Regardless of the type (whole area or single) of FC ID allocated, the FC ID entries remain persistent.

Default Company ID List

All Cisco Nexus 5000 Series switches contain a default list of company IDs that require area allocation. Using
the company ID reduces the number of configured persistent FC ID entries. You can configure or modify
these entries using the CLI.
Caution Persistent entries take precedence over company ID configuration. If the HBA fails to discover a target,
verify that the HBA and the target are connected to the same switch and have the same area in their FC
IDs, then perform the following procedure:
1 Shut down the port connected to the HBA.
2 Clear the persistent FC ID entry.
3 Get the company ID from the port WWN.
4 Add the company ID to the list that requires area allocation.
5 Bring up the port.
The list of company IDs have the following characteristics:
• A persistent FC ID configuration always takes precedence over the list of company IDs. Even if the
• New company IDs added to subsequent releases are automatically added to existing company IDs.
• The list of company IDs is saved as part of the running and saved configuration.
• The list of company IDs is used only when the fcinterop FC ID allocation scheme is in auto mode. By
• When you enter a write erase, the list inherits the default list of company IDs shipped with a relevant
To allocate company IDs, perform this task:
OL-16597-01
company ID is configured to receive an area, the persistent FC ID configuration results in the allocation
of a single FC ID.
default, the interop FC ID allocation is set to auto, unless changed.
We recommend that you set the fcinterop FC ID allocation scheme to auto and use the
Tip
company ID list and persistent FC ID configuration to manipulate the FC ID device
allocation.
Use the fcinterop FCID allocation auto command to change the FC ID allocation and the show
running-config command to view the currently allocated mode.
release.
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Default Company ID List
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