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diederick76

Member

Registered: 2010-02-14

Posts: 157

Netctl: switch-to Profile 'bond' does not specify an interface

I'm attempting to set up a round-robin bonding between the two ethernet ports on my box using bonding. Following https://wiki.archlinux.org/index.php/Netctl#Bonding and https://bbs.archlinux.org/viewtopic.php?id=203255, I have installed ifenslave and added this line to /etc/modprobe.d/bonding.conf:

options bonding mode=0 miimon=100

I've created a profile /etc/netctl/bond:

Description='Bond Interface'
Interface='bond0'
Connection=bond
BindsToInterfaces=('eno1' 'eno2')
IP=static
Address='192.168.1.100/24'
Gateway='192.168.1.1'
DNS='192.168.1.1'

I've also tried using the alternative names, but that didn't make any difference:

$ ip link
...
2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
    link/ether 70:10:6f:3e:90:b4 brd ff:ff:ff:ff:ff:ff
    altname enp3s0f0
3: eno2: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq master bond0 state UP mode DEFAULT group default qlen 1000
    link/ether de:03:3c:2a:d3:48 brd ff:ff:ff:ff:ff:ff permaddr 70:10:6f:3e:90:b5
    altname enp3s0f1
...

When I issue netctl switch-to bond, it returns Profile 'bond' does not specify an interface, just like in https://bbs.archlinux.org/viewtopic.php?id=186313. When I use netctl start bond I fails after an expected

Error: Device can not be enslaved while up.

So it is trying to enslave the device eno1, which is the one being up. Indeed, after that I can do:

$ cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)

Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Peer Notification Delay (ms): 0

Slave Interface: eno2
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 70:10:6f:3e:90:b5
Slave queue ID: 0

I cannot stop the existing network profile, because the machine only has VGA out and I have nothing to use that, so I can only reach it over network. That's why I hoped switch-to would allow me to retain the connection or at least re-log in.

Why can netctl not find the interfaces specified when using switch-to, yet doesn't seem to have any problem starting the profile?

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 13,285

Re: Netctl: switch-to Profile 'bond' does not specify an interface

Try creating a small script that stops the profile associated with eno1 (or all netctl profiles) and then starts the bond profile .

Last edited by Lone_Wolf (2020-06-01 13:59:16)

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diederick76

Member

Registered: 2010-02-14

Posts: 157

Re: Netctl: switch-to Profile 'bond' does not specify an interface

Try creating a small script that stops the profile associated with eno1 (or all netctl profiles) and then starts the bond profile .

But when the network connection is lost, I'm logged out and the script stops being executed, so the bond profile won't start, right?

d_fajardo

Member

Registered: 2017-07-28

Posts: 1,658

Re: Netctl: switch-to Profile 'bond' does not specify an interface

I've also tried using the alternative names

Did you create this altname? I have a feeling the names are conflicting.

When I issue netctl switch-to bond, it returns Profile 'bond' does not specify an interface

A link to rename interfaces via udev.

diederick76

Member

Registered: 2010-02-14

Posts: 157

Re: Netctl: switch-to Profile 'bond' does not specify an interface

Did you create this altname? I have a feeling the names are conflicting.

No, the altnames where there the first time I checked the interface names to put in the script. Confrontingly, I have no idea what created them. Also, they are not the same, so how do you mean they could be conflicting?

d_fajardo

Member

Registered: 2017-07-28

Posts: 1,658

Re: Netctl: switch-to Profile 'bond' does not specify an interface

It was pure hunch but it was wrong.
Like Lone_Wolf said, it seems the old configuration needs to be stopped first and before the bond can be switched on but since you're logged in through the network, I don't have the answer.

seth

Member

Registered: 2012-09-03

Posts: 60,974

Re: Netctl: switch-to Profile 'bond' does not specify an interface

https://wiki.archlinux.org/index.php/Al … ter_logoff

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