Brocade Fabric Watch Administrator's Guide v6.1.0 (53-1000601-02, June 2008)

6 Fabric Watch Administrator’s Guide
53-1000601-02
Fabric Watch components
1
DRAFT: BROCADE CONFIDENTIAL
Fabric class areas
Table 3 lists Fabric Watch areas in the Fabric class and describes each area.
FRU class areas
Table 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 Brocade 4100, 4900, 5000, 7500 and 7600, the slot and WWN areas are not supported.
TABLE 3 Fabric class areas
Area Description
Domain ID Changes Monitors forced domain ID changes. Forced domain ID changes occur when there is a
conflict of domain IDs in a single fabric and the principal switch has to assign another
domain ID to a switch.
Fabric Logins Activate when ports and devices initialize with the fabric.
Fabric Reconfiguration Tracks the number of reconfigurations of the fabric. Fabric reconfiguration occurs when:
• Two fabrics with the same domain ID are connected.
• Two fabrics are joined.
• An E_Port or VE_Port goes offline.
• A principal link segments from the fabric.
Loss of E_Port Tracks the number of times that an E_Port or VE_Port goes down. E_Ports and VE_Ports
go down each time you remove a cable or an SFP (where there are SFP failures or
transient errors).
Segmentation Changes Tracks the cumulative number of segmentation changes. Segmentation changes occur
due to:
• Zone conflicts.
• Incompatible link parameters. During E_Port and VE_Port initialization, ports
exchange link parameters, and incompatible parameters result in segmentation.
This is a rare event.
• Domain conflicts.
• Segmentation of the principal link between two switches.
SFP State Changes Indicates whether the state of the SFP is normal or faulty, on or off. A faulty or off state
means that you must reinsert, turn on, or replace the SFP. Fabric Watch monitors only
the digital diagnostic SFP.
Note: SFPs connected to GbE ports are not monitored.
Zoning Changes Tracks the number of zone changes. Because zoning is a security provision, frequent
zone changes might indicate a security breach or weakness. Zone change messages
occur whenever there is a change in zone configurations.
TABLE 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.