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Any HPE Synergy Frame Link Module (FLM) running firmware version 4.02.00 (or later) may persistently or intermittently assert erroneous alerts indicating the FLM Management (MGMT) and/or LINK port(s) are degraded due to excessive link state transitions and/or link errors.When this issue occurs, one or more alerts similar to the following will be displayed in HPE OneView:MGMT port alert similar to:"The MGMT port on frame link module in bay <FLM bay number> has excessive link state transitions and/or link errors. This may disrupt management connectivity to OneView and to enclosure components from outside the frame link topology."LINK port alert similar to:"The LINK port on frame link module in bay <FLM bay number> has excessive link state transitions and/or link errors. This may disrupt OneView manageability of the enclosure(s) within the frame link topology and cause unexpected failures in OneView management tasks."The above alerts were intended to identify connectivity issues (such as due to cable, transceiver, or patch panel issues) on specific network link segments in the frame management network topology that may impact manageability of Synergy frame(s) by HPE OneView. Due to a flaw in the detection logic, these alerts are erroneously being asserted on the presence of Ethernet frames larger than the standard 1518 bytes (jumbo frames) on the FLM MGMT and/or LINK ports when more than 3000 such frames are received in a 5 minute interval. These alerts may be persistent or may assert and clear intermittently depending on the rate at which these large Ethernet frames are being received.When these false alert indication(s) occur, there is no actual network connectivity issue present on the associated link segment(s) and these alerts can be safely ignored. The alert resolution displayed in these alert indications are only effective in identifying and resolving real network connectivity issues, and should be ignored for these false alert indications.These false alert indications can be differentiated from potentially real connectivity issues on the associated network links by the following:FLM firmware version 4.02.00 (or later) must be installed for these false indications to occur. Versions of FLM firmware prior to 4.02.00 do not assert these false alert indications.The affected Synergy frame(s) must have FLM MGMT ports connected to an external management network which has Ethernet frames larger than the standard 1518 bytes (jumbo frames) being transmitted for these false indications to occur.Assertion of alerts on one (or more) FLM MGMT ports and multiple LINK ports simultaneously is a significant indication that the alerts are false indications. If the specified alert conditions occur on a single FLM MGMT or LINK port, the alert condition may potentially indicate a real network connectivity issue.No observable indication of any network connectivity issues or unexpected management tasks reported by HPE OneView is an indication that the alerts are false indications.
In the scenario described above, any HPE Synergy Frame Link Module or HPE Synergy 4-Port Frame Link Module running firmware versions from 4.02.00 through 5.00.00.
To avoid this issue, update the FLM firmware to version 5.01.00 (or later). Firmware version 5.01.00 has been included in the HPE Synergy Service Pack (SSP) 2024.11.01. These versions can be found at theHPE Synergy Software Releasespage.Note that FLM firmware version 5.01.00 is also fully supported when applied as a hotfix to the following HPE Synergy Software Releases:All HPE OneView versions 8.7 and later in combination with HPE Synergy Service Pack 2024.07.xx.Additional information regarding Synergy hotfixes can be found in theHPESynergy Hotfixes Compatibility and Support Guidelinespage.Additional information regarding how to install Synergy hotfixes can be found at the following link:Installing HPE Synergy Hotfixes.As a workaround (if possible), disable transmission of Ethernet frames larger than 1518 bytes from the external management network to the FLM MGMT ports. Otherwise, the alerts can be safely ignored until the issue is resolved. Note that it is possible to manually clear the referenced active alert(s) in OneView; however, these false alerts may also clear and re-assert periodically, requiring repeated manually clearing of the alerts.Revision HistoryDocument VersionRelease DateDetails3January 14, 2025Updated the Resolution with additional SPP/hotfix information.2November 25, 2024The Resolution section has been updated with the firmware version containing the solution.1July 05, 2024Original Document Release.
Operating Systems Affected:Not Applicable
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