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hi

I use quantum grizzly with namespace and floodlight, but VMs can not ping
its gateway. It seems that floodlight ignore devices whose status
is PORT_DOWN or LINK_DOWN, somehow the subnetwork gateway is
really PORT_DOWN and LINK_DOWN.. is it normal?or how can I change its
status to normal?

root at controller:~# ovs-ofctl show br-int
OFPT_FEATURES_REPLY (xid=0x1): ver:0x1, dpid:0000e2ed9e9b6942
n_tables:255, n_buffers:256
features: capabilities:0xc7, actions:0xfff
 1(qr-c5496165-c7): addr:5e:67:22:5b:d5:0e
     config:     PORT_DOWN
     state:      LINK_DOWN
* 2(qr-8af2e01f-bb): addr:e4:00:00:00:00:00<--------------------this is the
gateway.....*
*     config:     PORT_DOWN*
*     state:      LINK_DOWN*
 3(qr-48c69382-4f): addr:22:64:6f:3a:9f:cd
     config:     PORT_DOWN
     state:      LINK_DOWN
 4(patch-tun): addr:8e:90:4c:aa:d2:06
     config:     0
     state:      0
 5(tap5b5891ac-94): addr:6e:52:f7:c1:ef:f4
     config:     PORT_DOWN
     state:      LINK_DOWN
 6(tap09a002af-66): addr:c6:cb:01:60:3f:8a
     config:     PORT_DOWN
     state:      LINK_DOWN
 7(tap160480aa-84): addr:96:43:cc:05:71:d5
     config:     PORT_DOWN
     state:      LINK_DOWN
 8(tapf6040ba0-b5): addr:e4:00:00:00:00:00
     config:     PORT_DOWN
     state:      LINK_DOWN
 9(tap0ded1c0f-df): addr:12:c8:b3:5c:fb:6a
     config:     PORT_DOWN
     state:      LINK_DOWN
 10(tapaebb6140-31): addr:e4:00:00:00:00:00
     config:     PORT_DOWN
     state:      LINK_DOWN
 11(tapddc3ce63-2b): addr:e4:00:00:00:00:00
     config:     PORT_DOWN
     state:      LINK_DOWN
 12(qr-9b9a3229-19): addr:e4:00:00:00:00:00
     config:     PORT_DOWN
     state:      LINK_DOWN
 LOCAL(br-int): addr:e2:ed:9e:9b:69:42
     config:     PORT_DOWN
     state:      LINK_DOWN
OFPT_GET_CONFIG_REPLY (xid=0x3): frags=normal miss_send_len=0


floodlight codes:
if (entity.hasSwitchPort() &&

!topology.isAttachmentPointPort(entity.getSwitchDPID(),

 entity.getSwitchPort().shortValue())) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Not learning new device on internal"
                                     + " link: {}", entity);
                    }

public boolean portEnabled(OFPhysicalPort port) {
        if (port == null)
            return false;
        if ((port.getConfig() & OFPortConfig.OFPPC_PORT_DOWN.getValue()) >
0)
            return false;
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