Users Guide

Monitoring and Alerting Policy Suite Administrator’s Guide 15
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MAPS monitoring categories
3
Fabric State Changes
The Fabric State Changes category groups areas of potential problems arising between devices,
such as zone changes, fabric segmentation, E_Port down, fabric reconfiguration, domain ID
changes, and fabric logins. Table 8 lists the monitored parameters in this category and provides a
brief description for each one.
Switch Resource
System resource monitoring enables you to monitor your system’s temperature, flash usage,
memory usage, and CPU usage.
You can use Switch Resource monitors to perform the following tasks:
• Configure thresholds for MAPS event monitoring and reporting for the environment and
resource classes. Environment thresholds enable temperature monitoring, and resource
thresholds enable monitoring of flash memory.
• Configure memory or CPU usage parameters on the switch or display memory or CPU usage.
Configuration options include setting usage thresholds which, if exceeded, trigger a set of
specified MAPS alerts. You can set up the system monitor to poll at certain intervals and
specify the number of retries required before MAPS takes action.
Table 9 lists the monitored parameters in this category and provides a brief description for each
one.
TABLE 8 Fabric State Changes category parameters
Monitored parameter Description
Domain ID changes (DID_CHG) 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 must
assign another domain ID to a switch.
Fabric logins (FLOGI) Activates when ports and devices initialize with the fabric.
Fabric reconfigurations
(FAB_CFG)
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
E_Port downs (EPORT_DOWN) 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 transceiver (where
there are SFP transceiver failures or transient errors).
Segmentation changes
(FAB_SEG)
Tracks the cumulative number of segmentation changes. Segmentation
changes occur because of one of the following:
• 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
Zone changes (ZONE_CHG) Tracks the number of zone changes. Because zoning is a security provision,
frequent zone changes may indicate a security breach or weakness. Zone
change messages occur whenever there is a change in zone configurations.