Brocade Fabric Watch Administrator's Guide Supporting Fabric OS v6.0.0 (53-1000601-01, October 2007)

Fabric Watch Administrator’s Guide 7
53-1000601-01
Fabric Watch components
1
Port class areas
Table 6 lists and describes the Product Name areas in the port class.
NOTE
Fabric Watch monitors and reports the status of physical and virtual FC ports. Physical GbE ports
and ISCSI ports are not monitored and are not included in the Port Class area.
Receive Performance The percentage of word frames traveling from the configured S_ID to the D_ID exceeds
the configured thresholds.
Transmit Performance The percentage of word frames traveling from the configured D_ID to the S_ID; user
configuration triggers these messages, so you can use the Transmit Performance area
to tune your network.
TABLE 6 Port class areas
Area Indicates
Invalid Cyclic Redundancy
Checks (CRCs)
A frame is invalid and cannot be transmitted. Invalid CRCs can represent noise on
the network. Such frames are recoverable by retransmission. Invalid CRCs
indicate a potential hardware problem. These errors occur mostly in aging fabrics.
Invalid Transmission Word A word did not transmit successfully. Invalid word messages usually indicate a
hardware problem.
Link Failure Count A link has lost the signal. Both physical and hardware problems can cause link
failures. Link failures frequently occur due to a loss of synchronization. Check for
concurrent loss of synchronization errors and, if applicable, troubleshoot those
errors. Link failures also occur due to hardware failures.
Loss of Signal Count The number of times that a signal loss occurs in a port. Signal loss indicates that
no data is moving through the port. A loss of signal usually indicates a hardware
problem.
Loss of Synchronization (Sync)
Count
Two devices failed to communicate at the same speed. Synchronization losses
are always accompanied by link failure. Loss of synchronization errors frequently
occur due to a faulty SFP or cable.
Primitive Sequence Protocol
Error
A CRC sum disparity. Occasionally, these errors occur due to software glitches.
Persistent errors occur due to hardware problems.
Receive (RX) Performance The percentage of maximum bandwidth consumed in packet receipts.
State Changes The state of the port has changed for one of the following reasons:
• The port has gone offline.
• The port has come online.
• The port is testing.
• The port is faulty.
• The port has become an E_Port, EX_Port, VE_Port, or VEX_Port.
• The port has become an F/FL_Port.
• The port has segmented.
• The port has become a trunk port.
Transmit (TX) Performance The percentage of maximum bandwidth consumed in packet transmissions.
TABLE 5 Performance Monitor class areas (Continued)
Area Indicates