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Top Forums UNIX for Advanced & Expert Users Changing single path NIC to a teamed connection in same subnet Post 303039505 by rbatte1 on Tuesday 8th of October 2019 08:30:45 AM
Old 10-08-2019
This appears to be a conflict between the server and the network switches all along. We have redefined them as LACP balanced connections and later the network team have done the same to the switch ports. This broke everything because there was still the default route going out on the old card which had been configured by the network team to be in the team. I removed the default route from that port and hey-presto, I've got on to the new IP address properly with data being returned so a proper connection could be established.

I have then reconfigured the now redundant link to be part of the team and restarted the network services. I now have multiple LACP balanced active links.



For anyone else who may find this thread, I have two cards with four ports, so eight possible eno interfaces. Only 1, 2, 5 & 6 are cabled, so the full commands I used to bond them all together are:-
Code:
nmcli con add type team con-name team0 ifname team0 config '{"runner": {"name": "loadbalance", "tx_hash": ["eth", "ipv4", "ipv6"], "tx_balancer": {"name": "basic"} } }'
nmcli con mod team0 ipv4.addresses '10.102.16.13/24' ipv4.method manual
nmcli con add type team-slave ifname eno2 con-name team0-eno2 master team0
nmcli con add type team-slave ifname eno5 con-name team0-eno5 master team0
nmcli con add type team-slave ifname eno6 con-name team0-eno6 master team0

A new MAC address is created for the team and each bonded interface gets the same MAC address.

After the original connection was redundant, I added it to the group with this command and this edit:-
Code:
nmcli con add type team-slave ifname eno1 con-name team0-eno1 master team0
sed -i 's/ONBOOT="yes"/ONBOOT="no"/'  /etc/sysconfig/network-scripts/ifcfg-eno1

Verification commands:
Code:
ip ad s
teamdctl team0 state                        (and variations from this)
nmcli -p
ethtool -S eno1                             (or eno2, eno5 & eno6)


I hope that this is useful to someone, but at least I have it documented for myself too! Smilie


Kind regards,
Robin
 

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TEAMDCTL(8)							   teamd control						       TEAMDCTL(8)

NAME
teamdctl -- team daemon control tool SYNOPSIS
teamdctl [options] team_device command [command_args...] teamdctl -h DESCRIPTION
teamdctl is a tool that allows a user to interact with a running teamd instance. It defaults to using Unix Domain Sockets, but will fall back to using the D-Bus API, to ensure reliable operation in all environments. OPTIONS
-h, --help Print help text to console and exit. -v, --verbosity Increase output verbosity. -o, --oneline Force output to one line if possible. -D, --force-dbus Force to use D-Bus interface. -Z address, --force-zmq address Force to use ZMQ interface. Possible address formats are "tcp://ip:port", "ipc://path" and others. Detailed description of ZMQ library is in page http://zguide.zeromq.org/page:all. -U, --force-usock Force to use UNIX domain socket interface. This is the default behavior. COMMAND
config dump Dumps teamd JSON config. config dump noports Dumps teamd JSON configuration without "ports" section included. config dump actual Dumps teamd actual JSON configuration. It includes ports which are currently present. state dump | state Dumps teamd JSON state document. state view Prints out state of teamd parsed from JSON state document. state item get state_item_path Finds state item in JSON state document and returns its value. state item set state_item_path value Finds state item in JSON state document and sets its value by value parameter. This is available only for a limited number of paths: ports.PORTIFNAME.runner.aggregator.selected -- This is available for lacp runner. User can manually select the aggregator. runner.active_port -- This is available for activebackup runner. User can manually select the active port. port add portdev Takes port device name as argument. Adds port device into team. port remove portdev Takes port device name as argument. Removes port device from team. port present portdev Takes port device name as argument. Checks if the port device is present in team. port config update portdev portconfig-string Takes port device name as the first argument and JSON format configuration string as the second argument. Updates port device con- figuration. port config dump portdev Takes port device name as the first argument. Dumps port device JSON configuration to standard output. SEE ALSO
teamd(8), teamnl(8), teamd.conf(5) AUTHOR
Jiri Pirko is the original author and current maintainer of libteam. libteam 2013-05-24 TEAMDCTL(8)
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