Technical data

Fabric OS MIB Reference Manual 8-29
Publication Number: 53-0000521-08
Connectivity Group
8
Note The link table is intended to organize and communicate any information the agent has
that might assist a management application to discover the connectivity units in the
framework and the topology of their interconnect: the goal is to assist the
management application by mapping the elements of the framework in addition to
listing them.
With this goal, the agent should include as much as it possesses about any links from
its own connectivity units to others, including links among its own units.
An agent should include partial information about links if it is not able to fully define
them in accord with the following structure; however, the information must include
either a nonzero connUnitNodeId—or a nonzero connUnitPortWwn—for each end of
the link.
If the agent is able to discover links that do not directly attach to members of its
agency and its discovery algorithm gives some assurance that the links are recently
valid, it might include these links.
Link information entered by administrative action might be included even if not
validated directly if the link has at least one endpoint in this agency, but it should not
be included otherwise.
A connectivity unit should fill the table in as best it can. One of the methods to fill this
in would be to use the RNID ELS command (ANSI document 99-422v0). This
command queries a port for the information needed for the link table.
This table is accessed either directly, if the management software has an index value,
or using getNext. The values of the indexes are not required to be contiguous. Each
entry created in this table is assigned an index. This relationship is kept persistent
until the entry is removed from the table or the system is reset. The total number of
entries is defined by the size of the table.
For an entry to be considered valid, both the X (local) and the Y (remote) values need
to have one valid value.
connUnitLinkEntry
OID 1.3.6.1.3.94.1.12.1
Description An entry describing a particular link to another.
Index connUnitLinkUnitId
connUnitLinkIndex
connUnitLinkUnitId
OID 1.3.6.1.3.94.1.12.1.1
Description The connUnitId of the connectivity unit that contains this link table.
Note Set to WWN of the local switch.
connUnitLinkIndex
OID 1.3.6.1.3.94.1.12.1.2