Iodreset; Iodset - Dell PowerVault 50F Installation And Troubleshooting Manual

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Table 4-21. Neighbor Data Structure Field Descriptions (continued)
Field Description
nLsuIn The number of Link State Updates received from the neighbor
switch.
nLsaIn The number of Link State Acknowledges received from the neigh-
bor switch.
attHloOut The number of attempted transmissions of Hello frames to the
neighbor switch.
nHloOut The number of Hello frames transmitted to the neighbor switch.
attLsuOut The number of attempted transmissions of Link State Updates to
the neighbor switch.
nLsuOut The number of Link State Updates transmitted to the neighbor
switch.
attLsaOut The number of attempted transmissions of Link State Acknowl-
edges to the neighbor switch.
nLsaOut The number of Link State Acknowledges transmitted to the neigh-
bor switch.
other The other fields represent internal FSPF variables.

iodReset

The iodReset command turns off the in-order delivery option. This command allows
out-of-order delivery of frames during fabric topology changes.
This is the default behavior and allows fast rerouting after a fabric topology change.

iodSet

The iodSet command ensures that frames will not be delivered out-of-order, even
during fabric topology changes. In a stable fabric, frames are always delivered in order,
even when the traffic between switches is shared among multiple paths. However,
when some topology change occurs in the fabric, for instance, a link goes down, traf-
fic is rerouted around the failure. In general, there is no guarantee in this case that
some frame, queued behind a congested link, will not be delivered after a frame that
has been transmitted later, but is now taking the new path.
This command should be used with care, because it will cause a delay in the estab-
lishment of a new path when a topology change occurs. Use this command only if
there are devices connected to the fabric that do not tolerate occasional out-of-order
delivery of frames.
The default behavior is for the in-order delivery option to be off.
PowerVault 51F Commands 4-37