OS SNMP Support Manual (620-000131-620, April 2005)

A-10

E/OS SNMP Support Manual

Fibre Alliance MIB

IEEE Extended (NAA=2)

IEEE Registered (NAA=5).

IEEE Registered extended (NAA=6).

Use of the IEEE formats allows any IEEE-registered vendor to assure

global uniqueness independently. The following are some references

on IEEE WWN formats:

http://standards.ieee.org/regauth/oui/tutorials/fibreformat.html

http://standards.ieee.org/regauth/oui/tutorials/fibrecomp_id.htm

If one or more WWNs are associated with the connectivity unit via

other management methods, one of them SHOULD be used for

fcConnUnitGlobalId. If there is not a WWN assigned specifically to

the connectivity unit, there is some merit, though not a requirement,

to using a WWN assigned to (one of) its permanently attached

FC/LAN interface(s). This can not risk uniqueness, though. As a

counterexample, if your agent runs in a host and the host has an

HBA, it is quite possible that agent, host, and HBA will all be distinct

connectivity units, so the host and agent can not use the WWN of the

HBA.

Another example: If your hub has a built-in Ethernet port, it might be

reasonable for the hub to use its LAN address (prefixed with the

appropriate NAA) as its fcConnUnitId. But if the Ethernet were a

replaceable PCCard, the hub should have an independent ID.

Sequence

::= { fcConnUnitEntry 2 }

fcConnUnitType

Syntax FcUnitType

Max-Access read-only

Status current

Description The type of this connectivity unit.

Sequence

::= { fcConnUnitEntry 3 }

fcConnUnitNumPorts

Syntax Unsigned32