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Cisco Bug: CSCvu85589 - Firepower 9300 FPR-NM-4X100G or FPR-NM-2X100G interface may blackhole port-channel member traffic

Last Modified

Sep 09, 2020

Products (1)

  • Cisco Firepower 9300 Series

Known Affected Releases


Description (partial)

In rare cases, a Firepower 9300 device running the 2/4x100G network module (FPR-NM-4X100G= or FPR-NM-2X100G= ) may experience traffic being blackholed through one or more member interfaces of a port-channel.

1. Must be running the FPR9K-NM-2X100G or FPR9K-NM-4X100G NetMods in both slots on a Firepower 9300 platform.
2. Must have a port-channel with members from both slots.
3. Must have a sequence of interface up/down events in the following order: slot x members down, slot y members down, slot x members up, slot y members up.
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Bug Details Include

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