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MS Event Log Entries and Definitions

If an MS switch is in use on a given network, the event log can be a handy tool to monitor various switching events.

The event log reports the following switch-specific event types:

  • Port Status Change
  • Port STP Change
  • SFP Module Inserted/Removed

Port Status Change

Port status changes reflect the physical level of the port. The event log entry will display the new speed of the port vs the old speed or state. A down port reflects there is no link established with the client. 

Port STP Change

Port STP changes reflect the STP state of the port. If the MS switch is configured to use STP, an entry will appear in the event log whenever a port’s STP status changes. The event log entry will display the old state and the new state, where the possible states are:

  • Designated
    A “Designated” port indicates a “Forwarding” STP state.
  • Disabled
    A “Disabled” port means that the port is no longer active. 
  • Backup
    A “Backup” port indicates a “Blocking” STP state.

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SFP Module Inserted/Removed

SFP module entries are the result in the addition or removal of an SFP Module to the MS switch. The "SFP module inserted" event can also be triggered when the switch reboots and re-discovers the SFP modules.

The following events of this type may occur:

  • SFP Module Inserted
    The “SFP Module Inserted” event will include:
    • The Serial number of the SFP module.
    • The port the SFP module was inserted into on the switch.
    • The manufacturer of the SFP module.
    • The connector type of the SFP module.
    • The Speed supported by the SFP module.
    • The part number of the SFP module.
  • SFP Module Removed
    ​The “SFP Module Removed" event log will include:
    • The switch port the module was removed from.

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Last modified
14:35, 22 Jun 2015

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