HP StorageWorks 2/16V Brocade Fabric Watch Administrator's Guide (53-1000243-0 - Page 24

Table 1-6, Indicates, The port has become an E_Port, EX_Port, or VEX_Port.

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1 Fabric Watch Components Table 1-6 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 Loss of Signal Count Loss of Synchronization (Sync) 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. 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. 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. 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. 1-8 Fabric Watch Administrator's Guide Publication Number: 53-1000243-01

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1-8
Fabric Watch Administrator’s Guide
Publication Number: 53-1000243-01
Fabric Watch Components
1
Table 1-6
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.
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.