Brocade Fabric Watch Administrator's Guide (53-1000243-01, November 2006)

Fabric Watch Administrator’s Guide 1-7

Publication Number: 53-1000243-01

Fabric Watch Components

FRU Class Areas

Table 1-4 lists Fabric Watch areas in the FRU class and describes each area. Possible states for all FRU-

class areas are absent, faulty, inserted, on, off, ready, and up.

Supported FRU areas depend on the type of Brocade switches. For nonmodular switches such as the

SilkWorm 3250, 3850, 3900, 4100, 4900, and 7500, the slot and WWN areas are not supported.

Performance Monitor Class Areas

Table 1-5 lists Fabric Watch areas in the Performance Monitor class and describes each area.

Port Class Areas

Table 1-6 lists and describes the Fabric Watch areas in the port class.

Table 1-4 FRU Class Areas

Area Indicates

Slot State of a slot has changed.

Power Supply State of a power supply has changed.

Fan State of a fan has changed.

WWN State of a WWN card has changed.

Table 1-5 Performance Monitor Class Areas

Area Indicates

Customer Define Relies on performance monitor telnet commands. For more information on

this area, see the Fabric OS Command Reference.

Invalid Cyclic

Redundancy Checks

(CRC)

Errors have been detected in the Fibre Channel frame. Invalid CRC messages

occur when the number of CRC errors in Fibre Channel frames for specific

source ID (S_ID) and destination ID (D_ID) pairs change. These messages

can also be caused by dirty or aging equipment and temperature fluctuations.

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.

ote

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.