HP StorageWorks 2/16V Brocade Fabric Watch Administrator's Guide - Supporting - Page 24

TX performance percentages are not applicable to VE_Ports.

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1 Fabric Watch components 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. 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) Two devices failed to communicate at the same speed. Synchronization losses Count are always accompanied by link failure. Loss of synchronization errors frequently occur due to a faulty SFP or cable. Primitive Sequence Protocol A CRC sum disparity. Occasionally, these errors occur due to software glitches. Error 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. NOTE Physical link error counters and statistics (such as link failure count, loss of signal count, and RX and TX performance percentages) are not applicable to VE_Ports. 8 Fabric Watch Administrator's Guide 53-0000438-01

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8
Fabric Watch Administrator’s Guide
53-0000438-01
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.
NOTE
Physical link error counters and statistics (such as link failure count, loss of signal count, and RX and
TX performance percentages) are not applicable to VE_Ports.
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.