Bonding: Difference between revisions

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Ethernet bonding (trunking), Links Aggregation
Ethernet bonding (trunking), Link Aggregation (lagg)


=Links=
=Links=
*[https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-using_channel_bonding RHEL doc about bonding]
*[https://wiki.linuxfoundation.org/networking/bonding bonding]
*[https://wiki.linuxfoundation.org/networking/bonding bonding]
*[https://wiki.centos.org/TipsAndTricks/BondingInterfaces Bonding interfaces]
*[https://wiki.centos.org/TipsAndTricks/BondingInterfaces Bonding interfaces]
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  cat /sys/devices/virtual/net/bond*/
  cat /sys/devices/virtual/net/bond*/
 
link monitoring frequency in milliseconds
cat /sys/class/net/bond0/bonding/miimon


=FAQ=
=FAQ=
==change bonding type==
==change bonding type==
only works when the interfaces are down (slaves or bond??)
only works when the bonding interface is down
  ip link set dev bond0 type bond mode active-backup
  ip link set dev bond0 type bond mode active-backup


or
echo 6 > /sys/class/net/bond0/bonding/mode
or
echo balance-alb > /sys/class/net/bond0/bonding/mode


==MII Status: down==
==MII Status: down==
==bond0: link status definitely down for interface ens1f0, disabling it==




[[Category:Network]]
[[Category:Networking]]

Latest revision as of 11:41, 10 October 2023

Ethernet bonding (trunking), Link Aggregation (lagg)

Links

Commands and tools

ifenslave

ip link

ip link set dev bond0 etc etc

ethtool

ethtool bond0

mii-tool

mii-tool SIOCGMIIPHY on eth0 failed: Operation not supported

manpage: The interface in question does not support MII queries. Most likely, it does not have MII transceivers, at all.


Debugging

cat /proc/net/bonding/bond0 
cat /sys/devices/virtual/net/bond*/

link monitoring frequency in milliseconds

cat /sys/class/net/bond0/bonding/miimon

FAQ

change bonding type

only works when the bonding interface is down

ip link set dev bond0 type bond mode active-backup

or

echo 6 > /sys/class/net/bond0/bonding/mode

or

echo balance-alb > /sys/class/net/bond0/bonding/mode

MII Status: down

bond0: link status definitely down for interface ens1f0, disabling it