McDATA Sphereon 4500 Manuel d'utilisateur télécharger pdf (Page 89)

Performance View

2-33

Monitoring and Managing the Switch

The switch increments this count when it discards a frame that

cannot be routed. This occurs most frequently when a destination

becomes unavailable without the source realizing the destination

is unavailable. There are no thresholds for this value. Typically,

this occurs when the destination is not available due to the

destination device’s action.

• Four Byte Words Received

The number of four-byte words received.

• Four Byte Words Transmitted

The number of four-byte words transmitted.

Error Statistics

Port errors indicate that a port is not operating correctly. Use this data

to isolate problems with port and link operations. The statistics in this

table include:

• Link failures

A link failure was recorded in response to a not operational

sequence (NOS), protocol timeout, or port failure. At the

Hardware View, a yellow triangle appears to indicate a link

incident, or a blinking red and yellow diamond appears to

indicate a port failure.

• Sync losses

A loss of synchronization was detected because the attached

device was reset or disconnected from the port. At the Hardware

View, a yellow triangle appears to indicate a link incident.

• Signal losses

A loss of signal was detected because the attached device was

reset or disconnected from the port. At the Hardware View, a

yellow triangle appears to indicate a link incident.

• Primitive sequence errors

An incorrect primitive sequence was received from the attached

device, indicating a Fibre Channel link-level protocol violation.

At the Hardware View, a yellow triangle appears to indicate a link

incident.

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McDATA Sphereon 4500 Manuel d'utilisateur Page 89