Technical data

8-8 Fabric OS MIB Reference Manual
Publication Number: 53-0000521-08
Connectivity Group
8
http://standards.ieee.org/regauth/oui/tutorials/
fibrecomp_id.html
If one or more WWNs are associated with the connUnit via other management
methods, one of them should be used for connUnitGlobalId.
If a WWN is not assigned specifically to the connUnit, there is some merit to using a
WWN assigned to (one of) its permanently attached FC/LAN interfaces. This cannot
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 are all distinct connUnits, so the host and agent
cannot use the WWN of the HBA.
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 connUnitId. But if
the Ethernet is a replaceable PCCard, the hub should have an independent ID.
Note The Brocade implementation maps the switch WWN to the top 8 octets of this
variable and sets the remaining lower 8 octets to 0.
Example:
If Brocade’s switch WWN is 10:0:0:60:69:10:02:18, then use the SNMP GET
command on
connUnitGlobalId.10.0.0.60.69.10.02.18.0.0.0.0.0.0.0.0
returns:
10 00 00 60 69 10 02 18 00 00 00 00 00 00 00 00
connUnitType
OID 1.3.6.1.3.94.1.6.1.3
Description The type of this connectivity unit.
Note Set to 4 (switch).
connUnitNumports
OID 1.3.6.1.3.94.1.6.1.4
Description Number of physical ports (between 0 and the maximum number of system supported
ports) in the connectivity unit (internal/embedded, external).
Note To determine the maximum number of system supported ports, use the SNMP GET
command on swFcPortCapacity.
The SilkWorm switches support 0 to maximum number of system supported ports.
For the SilkWorm 4100, this value is 32.
connUnitState
OID 1.3.6.1.3.94.1.6.1.5