HP VRF (vpn-instance) Problem

[danishalke]

Hi

I have 2 HP A10508 switch at core , connected to HP 5120 access layer siwtches using trunk link. I have attached the topology.  There are two vlan 10 and 20 and SVI 172.16.10.1/24 and 172.16.20.1/24 respectively.. I have created a VRF(Vpn-instance) DC on Core switches and put interface vlan 20 into that VRF. Users connected to access layer switches in vlan 10 can ping to 172.16.10.1 but users in vlan 20 can not ping 172.16.20.1/24. Even if i create the vlan 20 svi on access layer swith,i can not ping to 172.16.20.1.  Here is the configuration of core and access layer switches. Thanks in advance.

HP Core SWitch 10508 Configuration

Software comware version 5

vlan 10

vlan 20

 Int vlan 10

Ip add   172.16.10.1 255.255.255.0

Description Management

 interface Bridge-Aggregation 1

link-aggregation mode dynamic

port link-type trunk

port trunk permit vlan all

quit

 interface ten 1/0/0/1

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

interface ten 2/0/0/1

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

quit

 ip vpn-instance DC

route-distinguisher 100:1

 interface Vlan-interface 20

ip binding vpn-instance DC

Ip add   172.16.20.1 255.255.255.0

HP 5120 Switch Config

vlan 10

vlan 20

 Int vlan 10

Ip add   172.16.10.2 255.255.255.0

Description Management

 ip route-static 0.0.0.0 0.0.0.0 172.16.10.1

 interface Bridge-Aggregation 1

link-aggregation mode dynamic

port link-type trunk

port trunk permit vlan all

quit

 interface ten 1/1/1

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

interface ten 1/1/2

port link-type trunk

port trunk permit vlan all

port link-aggregation group 1

quit

[wuwik]

Is it happend when You did this:

 interface Vlan-interface 20

ip binding vpn-instance DC

Ip add   172.16.20.1 255.255.255.0    ??

I mean "ip binding vpn-instance DC" . I have the same problem with ping. I am looking for solution...
I think this is something with routing inside vpn-instance but I am not sure.
When You do sth like this
ip route-static vpn-instance DC network mask interface gw permanent it may help "one way " ...