Bonding: Difference between revisions

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Ethernet bonding (trunking)
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]
*[https://wiki.debian.org/Bonding Bonding on Debian]
*[http://linux-ip.net/html/ether-bonding.html Link Aggregation and High Availability with Bonding]
*[https://docs.bisdn.de/network_configuration/link_aggregation.html Link Aggregation]


=Commands and tools=
==ifenslave==


=Debug info=
==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 /proc/net/bonding/bond0  


/sys/devices/virtual/net/bond*/
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==
 
 
[[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