ofp_pktinfilter: add 'logging' option

When packet_in_filter discards a packet, it is always logging. However,
it may be felt noisy.

Signed-off-by: Satoshi Kobayashi <satoshi-k@stratosphere.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
ofa_neutron_agent: Add a comment to explain what uses this

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
ryu.cfg: Fix a comment

Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
ofctl_v1_0: correct flow modify message

following fields is not set at mod_flow_stats command:

  * out_port, buffer_id

this patch fixes this problem.

Signed-off-by: Minoru TAKAHASHI <takahashi.minoru7@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
sw test tool: support specifying the port number

You can specify the port number in the options when sw test tool is started.
The example is as follows:

  ryu-manager --test-switch-target_recv_port 4   (default:1)
              --test-switch-target_send_port_1 5 (default:2)
              --test-switch-target_send_port_2 6 (default:3)
              --test-switch-tester_send_port 7   (default:1)
              --test-switch-tester_recv_port_1 8 (default:2)
              --test-switch-tester_recv_port_2 9 (default:3)
               ryu/tests/switch/tester.py

Signed-off-by: Minoru TAKAHASHI <takahashi.minoru7@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
sw test tool: add a comment about specifying the port number support

Signed-off-by: Minoru TAKAHASHI <takahashi.minoru7@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
sw test tool: add unit test

Signed-off-by: Minoru TAKAHASHI <takahashi.minoru7@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
bgp: local preference support

add local preference support in bgp. It is possible to apply local
preference to specific paths by using AttributeMap.

Unfortunately this patch supports only IPv4 path and I'm going to
start writing patches for other route families after this.

Signed-off-by: Hiroshi Yokoi <yokoi.hiroshi@po.ntts.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>