Flows created with actions set to "Group-IDs" are not working

Hi

I tested today with the below mentioned topology, having a broadcast flow whose actions were set to broadcast group ID. When I tried to ping from host h1 to h2, ARP request packet is sent out to only one port and not to all ports. This seems to be a bug and I request your inputs.

mininet> net
h1 h1-eth0:s1-eth1 h1-eth1:s1-eth2
h2 h2-eth0:s1-eth3
h3 h3-eth0:s1-eth4
s1 lo: s1-eth1:h1-eth0 s1-eth2:h1-eth1 s1-eth3:h2-eth0 s1-eth4:h3-eth0
c0

[mininet@opendaylight test]\>sudo ovs-ofctl dump-groups s1 -O OpenFlow13
OFPST_GROUP_DESC reply (OF1.3) (xid=0x2):
group_id=32399,type=all,bucket=weight:0,actions=output:3,output:4
group_id=28326,type=select,bucket=weight:0,actions=output:1,output:2

mininet@opendaylight test]\>sudo ovs-ofctl dump-flows s1 -O OpenFlow13
OFPST_FLOW reply (OF1.3) (xid=0x2):
cookie=0x0, duration=4310.355s, table=0, n_packets=2790, n_bytes=117180, dl_dst=ff:ff:ff:ff:ff:ff actions=group:32399
cookie=0x3000000000000008, duration=4496.507s, table=0, n_packets=308, n_bytes=38192, priority=5,dl_dst=01:80:c2:00:00:02,dl_type=0x8809 actions=CONTROLLER:65535

[mininet@opendaylight test]\>sudo tcpdump -i s1-eth4
tcpdump: WARNING: s1-eth4: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on s1-eth4, link-type EN10MB (Ethernet), capture size 65535 bytes
01:17:27.237038 ARP, Request who-has 10.1.1.2 tell rtr-pet-01.force10networks.com, length 28
01:17:28.238832 ARP, Request who-has 10.1.1.2 tell rtr-pet-01.force10networks.com, length 28
01:17:29.240828 ARP, Request who-has 10.1.1.2 tell rtr-pet-01.force10networks.com, length 28

[mininet@opendaylight test]\>sudo tcpdump -i s1-eth3
tcpdump: WARNING: s1-eth3: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on s1-eth3, link-type EN10MB (Ethernet), capture size 65535 bytes
01:17:16.334564 LLDP, length 49: openflow:1
01:17:21.334410 LLDP, length 49: openflow:1

Thanks and Regards
R. Kavitha