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Document VersionRelease DateDetails302/09/2021The Scope section has been updated to include the HPE Virtual Connect SE 100Gb F32 Module for Synergy.209/01/2020The Resolution section has been updated with additional information.110/09/2019Original Document Release.The ports of a Cisco network switch (93180YC-FX, among others) may report excessive Rx power coming from some of the uplink ports of an HPE Virtual Connect SE 40Gb F8 Module for Synergy or HPE Virtual Connect SE 100Gb F32 Module for Synergy, when the Ethernet connection between the Virtual Connect ICM and the Cisco switch is via an HPE Synergy 40GbE/4x10GbE/4x8Gb FC QSFP+ Transceiver (817040-B21).Example Message Reported by Cisco SwitchesNov 22 01:35:31 (switch name): 2018 Nov 22 01:35:32.016 CET: %ETHPORT-4-IF_SFP_WARNING:Interface Ethernet 1/26, High Rx Power WarningSample Cisco Switch InformationThe high warning in Cisco switches is set to -1 dBm. When above this value (for example -0.92 dBm), the switch sends a warning to the management tools.Sample Information from the Virtual Connect ModuleTransceiver Port : Ten-GigabitEthernet1/0/5:1--------------------Type : QSFPVendor Name : HPEVendor OUI : 00:17:6aVendor PN : AFBR-79EIPZ-HP5VendorRevision : 01Product Number : 817040-B21Vendor Serial Number: ATAxxxxxxxxxxxxVendor Date Code : 18-05-12Temperature : 35 Deg CelsiusVoltage : 3.2584 VModule Type : Ethernet FC OpticalInterface Type : SREthernet Speed : 10Gb 40GbFC Speed : 4Gb 8Gb 16GbLane ID : 1---------------------Optical Tx Power : unsupportedOptical Rx Power : 0.5481 mWLaser Bias Current : 7.0040 mA
In the scenario described above, the following Virtual Connect modules using an HPE Synergy 40GbE/4x10GbE/4x8Gb FC QSFP+ Transceiver (817040-B21):HPE Virtual Connect SE 100Gb F32 Module for SynergyHPE Virtual Connect SE 40Gb F8 Module for Synergy
This is an expected behavior as explained below.The HPE Synergy 40GbE/4x10GbE/4x8Gb FC QSFP+ Transceiver (817040-B21) is a FlexFabric transceiver that can operate as 4x10 Gb Ethernet or 4x8 Gb Fibre Channel. As such, the optical transmit power must be within the range of both Ethernet and Fibre Channel.This can result, occasionally, in an Ethernet mode transmit power of slightly greater than the Cisco Ethernet warning threshold of -1.00 dBm. Not every switch vendor will warn at this threshold, because the "Critical" threshold is much higher (+1.00 dBm).If, however, this warning is encountered when linking Virtual Connect ICMs to a Cisco Ethernet switch using this transceiver, customers can use one of the 40G QSFP+ to 4x10G SFP+ copper DAC or AOC options found in theHPE Virtual Connect SE 40GB F8 Module for HPE Synergy QuickspecsNote: Proactive replacement of the HPE Synergy 40GbE/4x10GbE/4x8Gb FC QSFP+ Transceiver is neither necessary nor authorized. Replacement will not change this behavior as the product is functioning as designed.RECEIVE PROACTIVE UPDATES: Receive support alerts (such as Customer Advisories), as well as updates on drivers, software, firmware, and customer replaceable components, proactively via e-mail through HPE Subscriber's Choice. Sign up for Subscriber's Choice at the following URL:Proactive Updates Subscription Form.NAVIGATION TIP: For hints on navigating HPE.com to locate the latest drivers, patches, and other support software downloads for HPE systems and Options, refer to theNavigation Tips document.SEARCH TIP: For hints on locating similar documents on HPE.com, refer to theSearch Tips Document.
Operating Systems Affected:Not Applicable
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