Load-balancing in the same IP subnet

Question

Can I use load-balancing in the same IP subnet? I have the servers and client in the same IP subnet. I'd like to load-balance client traffic to server traffic. I also need to load balance traffic between servers. Is possible to configure it only in one VLAN?
For example:
CSS:
interface 4/2
circuit VLAN1
ip address 10.0.0.10 255.255.255.0
service s1
ip address 10.0.0.101
active
service s2
ip address 10.0.0.102
active
service s3
ip address 10.0.0.103
active
service s4
ip address 10.0.0.104
active
owner test
content client
vip address 10.0.0.3
add service s1
add service s2
active
content servers
vip address 10.0.0.4
add service s3
add service s4
active
Cat6500:
interface FastEthernet4/1 - clients
no ip address
switchport
switchport mode access
spanning-tree portfast
interface FastEthernet4/2 - servers
no ip address
switchport
switchport mode access
spanning-tree portfast
interface FastEthernet4/3 - CSS
no ip address
switchport
switchport mode access
spanning-tree portfast
interface Vlan1
ip address 10.0.0.1 255.255.255.0
ip policy route-map pokus
access-list 101 permit tcp any eq 80 any
route-map pokus permit 10
match ip address 101
set ip next-hop 10.0.0.10
Thank you
Roman

Answer 1

yes, it's possible - use trunk with two VLANs (slide 9). or you can use 'transparent' mode (slide 11 - your attachment).
answer to your question (I have the problem to understand why there are two links with the same VLAN on the picture):
on the switch are two port interfaces in *switchport* mode (not trunk). now is it clearly?
result:
both methods (bridge mode with two vlans, or transparent bridge mode) use two vlans. it's on you, which type is for you preferred.
my recommendation is - use first method - one link to CSS with trunk configured in bridge mode (one ip subnet, two vlans, default gw for servers isn't css, but parent router)
martin