active-backup bond fallback not working

gr3Y

New Member
Mar 7, 2024
6
0
1
hi

have a 10G bont with failover to 1G in place. I see that in a failover situation everything runs as expected (both directions).
Then if the 10G link (which is the bond primary) is back online, no fallback happens. The connection remains at 1G link.

Can anybody confirm that this is working?

Configuration from /etc/network/interfaces

auto lo
iface lo inet loopback

auto enp35s0
iface enp35s0 inet manual

auto enp36s0
iface enp36s0 inet manual

auto enp16s0f0np0
iface enp16s0f0np0 inet manual

auto enp16s0f1np1
iface enp16s0f1np1 inet manual

iface enx7e15af045ba5 inet manual

auto bond0
iface bond0 inet manual
bond-slaves enp16s0f0np0 enp35s0
bond-miimon 100
bond-mode active-backup
bond-primary enp16s0f0np0
#10G Bond backup to 1G
 
Hey,

do you check with iperf3 if your 10G uplink is unavailable after you plug it back in?

Can you paste the output of ethtool enp16s0f0np0 & ethtools enp35s0 & lspci | egrep -i --color 'network|ethernet'

Best
 
Last edited:
hey yes indeed I do testing with iperf3

here the output:
ethtool enp16s0f0np0 & ethtools enp35s0 & lspci | egrep -i --color 'network|ethernet'
[1] 1259772
[2] 1259773
-bash: ethtools: command not found
Settings for enp16s0f0np0:
Supported ports: [ Backplane ]
Supported link modes: 1000baseKX/Full
10000baseKR/Full
25000baseCR/Full
25000baseKR/Full
25000baseSR/Full
Supported pause frame use: Symmetric
Supports auto-negotiation: Yes
Supported FEC modes: None RS BASER
Advertised link modes: 1000baseKX/Full
10000baseKR/Full
25000baseCR/Full
25000baseKR/Full
25000baseSR/Full
Advertised pause frame use: Symmetric
Advertised auto-negotiation: Yes
Advertised FEC modes: None
Speed: 10000Mb/s
Duplex: Full
Auto-negotiation: on
Port: Direct Attach Copper
PHYAD: 0
Transceiver: internal
Supports Wake-on: d
Wake-on: d
Link detected: yes
10:00.0 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
10:00.1 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
23:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
24:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
[1]- Done ethtool enp16s0f0np0
[2]+ Exit 127 ethtools enp35s0
 

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