IP SLB stumping

MrXpert

I'm stumped on IP SLB.

On routers R1 to R3 I have configured a loopback0 ip 172.16.0.254/32 on each of them.

This is the config on my Router called R4.

ip slb serverfarm MYFARM
real 172.16.0.1
inservice
real 172.16.0.2
inservice
real 172.16.0.3
inservice
!
ip slb vserver VIRTUAL_SERVER
virtual 172.16.0.254 tcp www
serverfarm MYFARM
inservice




DHCP-R4#SHOW IP SLB REAL

real server farm weight state conns

---

172.16.0.1 MYFARM 8 OPERATIONAL 0
172.16.0.2 MYFARM 8 OPERATIONAL 3
172.16.0.3 MYFARM 8 OPERATIONAL 0
DHCP-R4#
DHCP-R4#SHOW IP SLB VSERVER

slb vserver prot virtual state conns

---

VIRTUAL_SERVER TCP 172.16.0.254:80 INSERVICE 3


DHCP-R4#show ip slb serverfarm

server farm predictor nat reals bind id

---

MYFARM ROUNDROBIN none 3 0



I used telnet 172.16.0.254 80 cmd on the hosts (R5,R6 and R7) pretty much at the same time but they seem to be all connecting to the 172.16.0.2 address. Shouldnt they be load balancing equally? it is set to default round robin

MrXpert

any ideas?

MrXpert

No worries, i;ve figured it out and some.
Also setup two different server farms and load balanced between them with 2 web servers per farm. Each farm served a different subnet.

It's an amazing feature and I think often forgotten about.

Dieg0M

What did you figure out? Did it have to do with the load-balancing algorithm of WRR?