TO do this then you'll have to split
your traffic with an access-list first and then
use two route maps to set different next hop with the other hop still as an alternative
for redundancy.
e.g. say i have a network 172.21.59.0/24 and i want to load balance this traffic across two links.
10.1.1.0/30 and 10.2.2.0/30.
I can creat two access-list one to catch even number and the other to catch the odd numbers.
access-list 101 permit ip 172.21.59.1 0.0.0.254 any
access-list 102 permit ip 172.21.59.0 0.0.0.254
!
route-map loadBalance permit 10
match ip address 101
set ip next-hop 10.1.1.2 10.2.2.2
!
route-map loadBalance permit 20
match ip address 102
set ip next-hop 10.2.2.2 10.1.1.2
This should now send host ip address which
are even through one interface and odd through the other but
when one link goes down, all traffic is directed to the now active
link.
