[bitfolk] Re: 2024-05-23 ~20:25Z – ~20:50Z: Networking issue on host "jack"

Hi Maria, On Sat, May 25, 2024 at 12:40:31AM +0100, Maria Blackmore via BitFolk Users wrote: Hmm, I'm not sure. Here's the configuration: auto bond0 iface bond0 inet static bond_mode 1 slaves eth0 eth1 bond_miimon 100 $ cat /proc/net/bonding/bond0 Ethernet Channel Bonding Driver: v5.10.0-0.deb10.16-amd64 Bonding Mode: fault-tolerance (active-backup) Primary Slave: None Currently Active Slave: eth1 MII Status: up MII Polling Interval (ms): 100 Up Delay (ms): 0 Down Delay (ms): 0 Peer Notification Delay (ms): 0 Slave Interface: eth0 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: 0c:c4:7a:76:c6:8c Slave queue ID: 0 Slave Interface: eth1 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 1 Permanent HW addr: 0c:c4:7a:76:c6:8d Slave queue ID: 0 But, during the incident the MII Status remained up (and "ip link" showed as up). With tcpdump I could see LACP traffic arriving but no traffic at all going out of eth1. This is an old post but I can't see any improvements (unless you count BPF…) for finding out what is going on with LACP: https://serverfault.com/a/823865/71071 But also, as far as I understand, mode 1 (active-backup) doesn't require any LACP support in the switches so maybe doesn't care about LACPDU and only uses link state? Thanks, Andy -- https://bitfolk.com/ -- No-nonsense VPS hosting