One link in LACP bond comes up as 'churned' and does not send any LACPDUs
Issue
At reboot one NIC in an LACP/mode 4 bond does not come up as expected.
In the output of /proc/net/bonding/bond0
one interface is listed as 'churned'
and the 'system MAC address' of one link is 00:00:00:00:00:00
.
Slave Interface: ens3
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:00:00:00:00:CC
Slave queue ID: 0
Aggregator ID: 1
Actor Churn State: churned
Partner Churn State: churned
Actor Churned Count: 1
Partner Churned Count: 1
details actor lacp pdu:
system priority: 65535
system mac address: 00:00:00:00:00:cc
port key: 0
port priority: 255
port number: 1
port state: 69
details partner lacp pdu:
system priority: 65535
system mac address: 00:00:00:00:00:00
oper key: 1
port priority: 255
port number: 1
port state: 1
Environment
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 7
- bonding kernel module
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