Cisco Nexus 5000 Series Command Reference Release 4.0(1a)N2(1) (OL-16599-01, March 2009)

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Cisco Nexus 5000 Series Command Reference
OL-16599-01
Chapter 8 Fibre Channel Commands
fcid-allocation
fcid-allocation
Use the fcid-allocation command to manually add a FCID to the default area company ID list. Use the
no form of the command to remove a FCID from the default area company ID list.
fcid-allocation area company-id company-id
no fcid-allocation area company-id company-id
Syntax Description
Command Default None
Command Modes Configuration mode
Command History
Usage Guidelines Fibre Channel standards require a unique FCID to be allocated to an N port attached to a Fx port in any
switch. To conserve the number of FCIDs used, Cisco Nexus 5000 Series switches use a special
allocation scheme.
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 were
allocated with single FC IDs, and for others a full area was allocated.
To allow further scalability for switches with numerous ports, the switch software maintains a list of
HBAs exhibiting this behavior. 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.
Examples The following example adds a new company ID to the default area company ID list:
switch(config)# fcid allocation area company-id 0x003223
area Modifies the auto area list of company IDs.
company-id
company-id
Configures the company IDs.
Release Modification
4.0(0)N1(1a) This command was introduced.