Interface/Port Outage Threshold Feature - Allied Telesis SwitchBlade x3100 Series Manual

Interface/Port Outage Threshold Feature

CFC card - The Central Fabric Controller (CFC) card is described separately, since a loss of service on this
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card can affect the entire system. Also, with the SBX3112, the CFC is in duplex mode; if the active CFC can-
not function, the system will switch activity to the other CFC. With this ability in mind, the following behav-
ior applies to the CFC states.
Failed, Active - The CFC card cannot provide any service, and so all cards and interfaces are down. The
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Op State is DOWN. However, since this will trigger a switch of activity, this CFC will become the inac-
tive CFC, and so its state will change to Degraded.
In duplex mode, an active and FAILED CFC will always switch activity to ensure services are not lost.
Note:
Because of this, there is never an active CFC in a FAILED state for duplex.
Degraded, Active - The CFC can still provide service, but it is in simplex mode and so may fail if there
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are further alarms for the CFC. The Op State is still UP. An alarm is produced, and this is usually major
or critical, since a further alarm may mean loss of all service.
Failed, Inactive - The system is in duplex mode, and the inactive CFC is not providing service. The Op
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State is DOWN. An alarm is produced, and this is usually major or minor, since the loss of the card will
not affect service.
Degraded, Inactive - The system is in duplex mode, and so the CFC is not providing service. The Op
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State is UP.
When these alarms occur, there is an associated log as well, with a category of CARD. Refer to the Log
Note:
Reference for SwitchBlade® x3100 Series Switches.
System - These are errors at the system level, and usually involve the CFC being unable to read/process
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data correctly. This can be caused by something minor, such as the death of a non-critical task, or critical,
such as traffic volume overwhelming the CFC.
Also, when the number of Interface alarms has reached a number that affects the overall service level of the
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SBx3112, a system alarm is produced, as explained in 8.2.3.
8.2.3 Interface/Port Outage Threshold Feature
When a single customer interface fails, the problem is considered minor for the overall state of the system.
However, when a certain number of interfaces have failed, this could indicate a greater problem than just the
interface. Therefore, there is a separate alarm that is associated with the number of alarms and a severity asso-
ciated with the number, as follows. (Note that these ranges can be changed.)
More than 128=Critical,
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25 to 128=Major
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Less than 24=Minor
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When this occurs, there are usually two areas to investigate:
Failed Uplinks
1.
Failed Service Modules
2.
Software Reference for SwitchBlade x3100 Series Switches (Alarms and Troubleshooting)
Introduction
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