Technical data

2-8 Fabric OS MIB Reference Manual
Publication Number: 53-0000521-08
Interfaces Group
2
Description The number of network interfaces (regardless of their current state) present on this
system.
Note The return value is 5 for the SilkWorm 24000 (single domain), 7 for SilkWorm 12000
or the SilkWorm 240000 (dual-domain). All non-bladed systems will have a value of
3.
Interfaces Table
The Interfaces table contains information on the entity’s interfaces. Each interface is thought of as being
attached to a subnetwork. Note that this term should not be confused with subnet, which refers to an
addressing partitioning scheme used in the Internet suite of protocols.
ifTable
OID 1.3.6.1.2.1.2.2
Description A list of interface entries. The number of entries is given by the value of ifNumber.
ifEntry
OID 1.3.6.1.2.1.2.2.1
Description An interface entry containing objects at the subnetwork layer and below, for a
particular interface.
Index ifIndex
ifIndex
OID 1.3.6.1.2.1.2.2.1.1
Description A unique value for each interface.
Note The values range between 1 and the value of ifNumber. The value for each interface
must remain constant, at least from one reinitialization of the entity's network
management system to the next reinitialization.
For example, the number of entries inside the SilkWorm 12000 and 24000 switches is
1 to 3 for FCIP; otherwise, the value is 1 or 2.
ifDescr
OID 1.3.6.1.2.1.2.2.1.2
Description A textual string containing information about the interface.
Note The ifDescr for non-bladed switches includes: lo, eth0, and fc0.
The ifDescr for SilkWorm 12000 and 24000 switches includes: lo, eth0, and fc0, as
well as fc1, eth0:1, and eth0:2.