Another workarround for this issue was to downgrade the NICs (Broadcom NetXtreme-E BCM57504) firmware to
Lenovo: firmware-version: 227.0.131.0/pkg 227.1.115.0 Dell: firmware-version: 226.0.145.3/pkg 22.61.10.77 Worked for both Ubuntu and Proxmox. ethtool --offload <NIC> generic-receive-offload off halves the bandwidth while with older firmware it remains intact. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2098961 Title: Severe network performance issues with Kernel 6.8.0-53 and 6.11.0-17 (Xubuntu) on Proxmox 8.3 (bnxt_en + VirtIO) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2098961/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
