Multiple guest networks deployment issue

[hqming86]

I try to deploy cloudstack guest network for multiple pyhsical netowrk, but It looks like doesn't work, can any one help?

The designed as below:
There are three physical network:
1、physical network1：Three traffic types:Public,Management,Storage. All those types setup as traffic label cloudbr0
2、physical network2：Only one traffic type: Guest which is setup traffic lable cloudbr1
3、Guest_Net_test：Only one traffic type : Secondary g uest traffic with tag "NFS".

The agent deploy 3 bridge: cloudbr0(bridge to eth2), cloudbr1(bridge to eth3),cloudbr2(bridge to bond4)
root@cloudstack-agent02:/etc/cloudstack/agent# brctl show
bridge name bridge id STP enabled interfaces
cloudbr0 8000.1a10af3be1f1 no eth2
cloudbr1 8000.0adad08ce0ff no eth3
cloudbr2 8000.d697c5e4beae no bond4

The agent have already added successfully . All of the system VM for zone are setup successfully.
But how to add the Secondary guest network for Guest_Net_test?

I create a new network offering with tag "NFS" as well.

When I add guest network for Guest_Net_test, but the guest network cannot attach to Guest_Net_test, the guest network always attach to physical network2(My primary guest network).

As my understanding:

1. If we are going to add secondary guest network, We have to add a tag for both physical network and network offering.
2. When we create new guest network, The guest network attached to physical network are determed by the network offering we choose

Now the problem is that I have no idea to create the guest network for Guest_Net_test(tag "NFS" as secondary for guest network).

I tried to add new guest network ,but all network offering which is mark the tag NFS cannot show it. If I remove the tag the offering are list in the network offering option.