RHEL 5 /Netbackup 7/Nic Bonding question and issue
Hi Everyone,
We normally have windows media servers, but in order to support a large system with an infiniband connection, we bought some new media servers and loaded them with red hat linux. Each of...
bonding on Linux work really great. But there are some pits you need to avoid.- A bond must go to the same switch (eg. port 0 & 2). If you connect to two switches you need to create two bond's.
- The switch must have a channel defined or else the switch do not know to load balance.
- Use LACP as bonding protocol (mode 4)
I will meanwhile dig up a config of my own - I have two Red Hat's running with bonding enabled.
Update:
As promised, this setup is a bit different as bond0 carries subnet configured as VLAN's via 802.1q (VLAN tagging). Hope you can use the info anyway.
# more ifcfg-eth4
# Intel Corporation 82571EB Gigabit Ethernet Controller (Copper)
#HWADDR=00:1f:29:60:af:b7
DEVICE=eth4
BOOTPROTO=none
ONBOOT=yes
HWADDR=00:1f:29:60:af:b7
TYPE=Ethernet
ETHTOOL_OPTS="speed 1000 duplex full autoneg off"
SLAVE=yes
MASTER=bond0
USERCTL=no
# more ifcfg-eth5
# Intel Corporation 82571EB Gigabit Ethernet Controller (Copper)
#HWADDR=00:1f:29:60:af:b6
DEVICE=eth5
BOOTPROTO=none
ONBOOT=yes
HWADDR=00:1f:29:60:af:b6
TYPE=Ethernet
USERCTL=no
MASTER=bond0
SLAVE=yes
ETHTOOL_OPTS="speed 1000 duplex full autoneg off"
more ifcfg-bond0
# Bond0 - no IP address configured, subnet configured as VLAN's.
DEVICE=bond0
TYPE=Bonding
ONBOOT=yes
BOOTPROTO=none
USERCTL=no
MII_NOT_SUPPORTED=yes
# more ifcfg-bond0.3144 (VLAN number)
DEVICE=bond0.3144
BOOTPROTO=static
ONBOOT=yes
IPADDR={xxx.yyy.zzz.aaa}
NETMASK=255.255.255.0
USERCTL=no
VLAN=yes
