bonding reports unknown speed and duplex

Solution Unverified - Updated -

Issue

  • We are seeing via ip addr show and ethtool eth2 and ethtool eth3 no issues but when we run the command cat /proc/net/bonding/bond1 the status is reporting "unknown speed" and duplex for eth2 and eth3.
# ip addr show

2: eth2: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> master bond0 state UP
3: eth3: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> master bond0 state UP
8: bond1: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> state UP 
# ethtool eth2
Settings for eth2:
        Speed: 1000Mb/s
        Duplex: Full
        Link detected: yes

# ethtool eth3
Settings for eth3:
        Speed: 1000Mb/s
        Duplex: Full
        Link detected: yes
# cat /proc/net/bonding/bond1
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)

Bonding Mode: fault-tolerance (active-backup)

Slave Interface: eth2
MII Status: up
Speed: Unknown
Duplex: Unknown

Slave Interface: eth3
Speed: Unknown
Duplex: Unknown

Environment

  • Red Hat Enterprise Linux 6.7 with kernel-2.6.32-573.26.1.el6
  • Red Hat Enterprise Linux 6.8 with kernel-2.6.32-642.13.1.el6
  • Bonding
  • Broadcom NetXtreme network interface using tg3 driver

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