For example, I have a 10.1.0.0/24 network and a load balancer is added to
it with 10.1.0.10 as VIP and 10.1.0.2(MAC 50:54:00:00:00:01), 10.1.0.3(MAC
50:54:00:00:00:02) as members.
ovn-nbctl create load_balancer vips:10.1.0.10="10.1.0.2,10.1.0.3"
When I try to send a request from client within the subnet(i.e 10.1.0.33)
its not reaching any load balancer members.
I noticed ARP not resolved for VIP 10.1.0.10.
I tried to resolve this in two ways
1) Adding a new ARP reply ovs flow for VIP 10.1.0.10 with router port's
MAC. When client tries to connect VIP, it will use router's MAC. Now router
gets the packet after load balancing, and will forward the packet to
appropriate member.
2) Second approach,
a) Using a new MAC(example, 50:54:00:00:00:ab) for VIP 10.1.0.10, and
adding a new ARP reply flow with this MAC.
b) As we are not using router, when load balancing changes destination
ip, VIP MAC has to be replaced with corresponding member's MAC i.e
sudo ovs-ofctl add-flow br-int
"table=24,ip,priority=150,dl_dst=50:54:00:00:00:ab,nw_dst=10.1.0.2,action=mod_dl_dst:50:54:00:00:00:01,load:0x1->NXM_NX_REG15[],resubmit(,32)"
sudo ovs-ofctl add-flow br-int
"table=24,ip,priority=150,dl_dst=50:54:00:00:00:ab,nw_dst=10.1.0.3,action=mod_dl_dst:50:54:00:00:00:02,load:0x2->NXM_NX_REG15[],resubmit(,32)"
Which approach will be better or is there any alternate solution?
Thanks
Anil
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