I'm trying to set up an LACP bond in CentOS 5.5 with eth1 and eth2 below. Everything looks fine but only eth1 emits LACPDUs. I've done this a bunch of times before, also on CentOS, but haven't seen exactly this behavior. Per the output below, eth2 is definitely link up and I can see the partner's LACPDUs in tcpdump. It just looks like it doesn't want to play,
Here's how the participant interfaces and bond look. Not missing anything completely obvious, am I?
Code: Select all
[root@eng-ci network-scripts]# grep -v "#" /etc/sysconfig/network-scripts/ifcfg-eth1 | awk NF
DEVICE=eth1
BOOTPROTO=none
HWADDR=00:E0:81:41:87:2D
ONBOOT=no
HOTPLUG=no
MASTER=bond0
SLAVE=yes
[root@eng-ci network-scripts]# grep -v "#" /etc/sysconfig/network-scripts/ifcfg-eth2 | awk NF
DEVICE=eth2
BOOTPROTO=none
HWADDR=00:E0:81:41:86:FF
ONBOOT=no
HOTPLUG=no
MASTER=bond0
SLAVE=yes
[root@eng-ci network-scripts]# grep -v "#" /etc/sysconfig/network-scripts/ifcfg-bond0 | awk NF
DEVICE=bond0
ONBOOT=yes
BOOTPROTO=none
USERCTL=no
mtu=11000
BONDING_OPTS="miimon=100 mode=4 lacp_rate=0 xmit_hash_policy=layer3+4"
BONDING_SLAVE0="eth1"
BONDING_SLAVE0="eth2"
[root@eng-ci network-scripts]# cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.4.0 (October 7, 2008)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer3+4 (1)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
802.3ad info
LACP rate: slow
Active Aggregator Info:
Aggregator ID: 3
Number of ports: 1
Actor Key: 9
Partner Key: 1043
Partner Mac Address: 02:04:96:98:80:3c
Slave Interface: eth1
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:e0:81:41:87:2d
Aggregator ID: 3
Slave Interface: eth2
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:e0:81:41:86:ff
Aggregator ID: 4
[root@eng-ci network-scripts]# ethtool eth1
Settings for eth1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: d
Current message level: 0x000000ff (255)
Link detected: yes
[root@eng-ci network-scripts]# ethtool eth2
Settings for eth2:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
Advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: g
Current message level: 0x00000007 (7)
Link detected: yes
[root@eng-ci network-scripts]#
[Moved from CentOS 7 -- Networking Support to CentOS 5 -- Networking support]