HP Fabric Clustering System HP-UX Administrator's Guide, March 2008

Table B-17 show ib sm port Command Field Descriptions (continued)
DescriptionField
Enabled link width. The value is an integer that indicates the enabled link-width sets for this port.
The value may be,
0 (no state change),
1 (1x),
2 (4x),
3 (1x or 4x),
8 (12x),
9 (1x or 12x),
10 (4x or 12x),
11 (1x, 4x or 12x),
255 (set this parameter to the LinkWidthSupported value).
link-width-enabled
Supported link width. The value is 1 (1x), 3 (1x or 4x), or 11 (1x, 4x, or 12x).link-width-supported
Active link width. Used in conjunction with LinkSpeedActive to determine the link rate between
two nodes. The value is 1 (1x), 2 (4x), or 8 (12x).
link-width-active
Supported link speed. The value is 1 (2.5 Gbps).link-speed-supported
A higher form of addressing than PhyState, State determines that the nodes can actually communicate
and indicates the state transition that has occurred. A transition is a port change from down to
initialize, initialize to down, armed to down, or active to down as a result of link state machine logic.
Changes to the port state resulting from SubnSet have no affect on this parameter value. The value
is noStateChange, down, initialize, armed, or active.
state
Indicates the actual state of the port. This is used to determine that electricity is flowing between
nodes and they can hand-shake. The value is noStateChange, sleeping, polling, disabled,
portConfigurationTraining, linkup, or linkErrorRecovery. The default state upon power-up is polling.
phy-state
Default LinkDown state to return to. The value is noStateChange, sleeping, or polling,. See section
5.5.2, Status Outputs (MAD GET), “InfiniBand® Architecture, Vol. 2, Release 1.0”, for more
information.
link-down-def-state
Management key protection bits for the port. The bits are 0, 1, 2, and 3. See section 14.2.4.1, Levels
of Protection, “InfiniBand® Architecture, Vol. 1, Release 1.0”, for more information.
mkey-prot-bits
Local identifier mask control (LMC) for multipath support. An LMC is assigned to each channel
adapter and router port on the subnet. It provides multiple virtual ports within a single physical
port. The value of the LMC specifies the number of path bits in the LID. A value of 0 (zero) indicates
one LID is allowed on this port. See sections 3.5.10, Addressing, and 4.1.3, Local Identifiers,
“InfiniBand® Architecture, Vol. 1, Release 1.0”, for more information.
lmc
Speed of an active link. The value is 1 (2.5 Gbps).link-speed-active
Maximum speed the link is capable of handling. The value is 0 (No state change), 1 (2.5 Gbps), or
3 (value derived from link-speed-supported).
link-speed-enabled
Active maximum transmission unit enabled on this port for transmit. Check the mtu-cap value at
both ends of every link and use the lesser speed. The value is mtu256, mtu512, mtu1024, mtu2048,
or mtu4096.
neighbor-mtu
Administrative service level required for this port to send a non-SMP message to the subnet manager.master-sm-SL
Maximum range of data virtual lanes supported by this port. The value is vl0, vl0ToVl1, vl0ToVl3,
vl0ToVl7, or vl0ToVl14. See also oper-VL.
VL-cap
Maximum high-priority limit on the number of bytes allowed for transmitting high-priority packets
when both ends of a link operate with multiple data virtual-lanes. Used with the virtual-lane
arbitration table. The maximum high-limit is determined by checking the vl-arb-high-cap on the
other side of the link and then negotiating downward.
VL-high-limit
148 Switch Command Line Interface