[CentOS] True bond howto for Centos 6 TYPO correction

> SORRY typo;
>
>> options bond0 mode=5 miimon=100
>
> is really
>
> options bond0 mode=4 miimon=100
>

Confirm your switch supports LACP and those ports are configured on
the switch for the aggregation.

Check dmesg and the bonding status in /sys/class/net/$BOND/bonding to
make sure that the lowest layer is good before progressing up the
layers to IP/TCP/Application.