Enhancement #3299
Default bonding mode to active-backup
| Status: | CLOSED | Start date: | ||
|---|---|---|---|---|
| Priority: | Normal | Due date: | ||
| Assignee: | - | % Done: | 100% | |
| Category: | nethserver-base | |||
| Target version: | v6.7 | |||
| Resolution: | NEEDINFO: | No |
Description
I think that the default mode for bonded ethernets should be 1 (active-backup), because it works well without the need of "special" switches and/or wrong cabling.
The linux kernel default is 0 (round-robin).
An expert sysadmin can follow documentation to change mode.
Some documentation:
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/s2-networkscripts-interfaces-chan.html
https://www.kernel.org/doc/Documentation/networking/bonding.txt
Related issues
Associated revisions
Accumulate BondOpt props and emit BONDING_OPTS. Refs #3299
NetworkAdapter UI: added BondMode selector. Refs #3299
Accumulate BondOpt props and emit BONDING_OPTS. Refs #3299
NetworkAdapter UI: added BondMode selector. Refs #3299
History
#1
Updated by Filippo Carletti almost 6 years ago
- Category set to nethserver-base
- Status changed from NEW to TRIAGED
- % Done changed from 0 to 20
Here's a command to set mode:
db networks setprop bond0 bonding_opts '"miimon=100 mode=1"'
Pay attention to the quotes (single, then double).
#2
Updated by Filippo Carletti almost 6 years ago
After a signal-event interface-update the ifcfg-bond0 config file should contain:
BONDING_OPTS="miimon=100 mode 1"
#3
Updated by Davide Principi over 5 years ago
- Status changed from TRIAGED to ON_DEV
- Assignee set to Davide Principi
- Target version changed from ~FUTURE to v6.7
- % Done changed from 20 to 30
#4
Updated by Davide Principi over 5 years ago
- Status changed from ON_DEV to MODIFIED
- Assignee deleted (
Davide Principi) - % Done changed from 30 to 60
MODIFIED
- The "New Logical Interface" UI allows selecting the bond mode
- The bond mode proposed by UI is "active-backup"
- The underlying implementation creates BONDING_OPTS value by reading any prop named after "BondOpt" prefix
Test case 1
After upgrading to the modified package signal interface-update event. Existing bond configuration must not change. To check the bond configuration (for instance):
cat /proc/net/bonding/bond* | grep ModeTest case 2
- Create a new bond interface
- Check the applied mode reflects the UI choice
#5
Updated by Davide Principi over 5 years ago
- Status changed from MODIFIED to ON_QA
- % Done changed from 60 to 70
In nethserver-testing:
nethserver-base-2.9.7-1.3.g873b750.ns6.noarch.rpm
TODO (on verified):
- update inline help
- update admin's manual
#6
Updated by Giacomo Sanchietti over 5 years ago
- Assignee set to Giacomo Sanchietti
#7
Updated by Giacomo Sanchietti over 5 years ago
- Status changed from ON_QA to VERIFIED
- Assignee deleted (
Giacomo Sanchietti) - % Done changed from 70 to 90
- bond0 set as active-backup
- bond1 set as round-robin
[root@ns1 ~]# grep Mode /proc/net/bonding/bond1 Bonding Mode: load balancing (round-robin) [root@ns1 ~]# grep Mode /proc/net/bonding/bond0 Bonding Mode: fault-tolerance (active-backup) [root@ns1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-bond1 DEVICE=bond1 BOOTPROTO=none GATEWAY=192.168.1.253 IPADDR=192.168.1.246 NETMASK=255.255.255.0 NM_CONTROLLED=no ONBOOT=yes TYPE=Bond USERCTL=no [root@ns1 ~]# cat /etc/sysconfig/network-scripts/ifcfg-bond0 DEVICE=bond0 BOOTPROTO=none GATEWAY=192.168.2.253 IPADDR=192.168.2.246 NETMASK=255.255.255.0 NM_CONTROLLED=no ONBOOT=yes TYPE=Bond USERCTL=no BONDING_OPTS="mode=1"
It works as expected.
Note
If you need to change the mode of an existing bond:
db networks setprop bond0 BondOptMode 2 signal-event interface-update reboot
#8
Updated by Davide Principi over 5 years ago
- Status changed from VERIFIED to CLOSED
- % Done changed from 90 to 100
#9
Updated by Davide Principi over 5 years ago
- Related to Enhancement #3373: Bond miimon default value added