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

1-6 Fabric Watch Administrator’s Guide
Publication Number: 53-1000243-01
Fabric Watch Components
1
Fabric Class Areas
Table 1-3 lists Fabric Watch areas in the Fabric class and describes each area.
Table 1-3 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 Occurs 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 has gone offline.
• A principal link has segmented 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.