如何使用ODL的bulk-o-matic下发多条流表？

SDNLAB君 · 发表于 2017-7-27 17:37:34

之前分享过《如何用postman控制ODL查看和下发流表》。但是在实际应用中，经常会遇到需要下发大量流表的情况。ODL的bulk-o-matic组件可以帮助我们实现这个需求。

准备工作

Ubuntu 14.04.4 LTS
java version “1.8.0_91”
distribution-karaf-0.5.2-Boron-SR2
Curl & Postman

安装

解压distribution-karaf-0.5.2-Boron-SR2.zip后启动ODL，安装下列组件
opendaylight-user@root>feature:install odl-restconfopendaylight-user@root>feature:install odl-l2switch-switchopendaylight-user@root>feature:install odl-mdsal-apidocsopendaylight-user@root>feature:install odl-mdsal-allopendaylight-user@root>feature:install odl-openflowplugin-app-bulk-o-maticopendaylight-user@root>feature:install odl-dlux-allopendaylight-user@root>

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opendaylight-user@root>feature:install odl-restconf
opendaylight-user@root>feature:install odl-l2switch-switch
opendaylight-user@root>feature:install odl-mdsal-apidocs
opendaylight-user@root>feature:install odl-mdsal-all
opendaylight-user@root>feature:install odl-openflowplugin-app-bulk-o-matic
opendaylight-user@root>feature:install odl-dlux-all
opendaylight-user@root>

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连接OpenFlow换机，查看交换机上的流表：
DUT1# ovs-ofctl dump-flows br0 -O openflow13OFPST_FLOW reply (OF1.3) (xid=0x2): cookie=0x2b00000000000000, duration=1551.307s, table=0, n_packets=0, n_bytes=0, priority=100,dl_type=0x88cc actions=CONTROLLER:65535 cookie=0x2b00000000000000, duration=1551.309s, table=0, n_packets=0, n_bytes=0, priority=0 actions=dropDUT1#

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DUT1# ovs-ofctl dump-flows br0 -O openflow13
OFPST_FLOW reply (OF1.3) (xid=0x2):
cookie=0x2b00000000000000, duration=1551.307s, table=0, n_packets=0, n_bytes=0, priority=100,dl_type=0x88cc actions=CONTROLLER:65535
cookie=0x2b00000000000000, duration=1551.309s, table=0, n_packets=0, n_bytes=0, priority=0 actions=drop
DUT1#

在ODL的WebUI上可以看到连上的交换机，并获取OVS的dpid=openflow:128983239877。

准备xml文件

创建一个文件test.xml，写入下面内容：

<?xml version="1.0" encoding="UTF-8" standalone="no"?><input xmlns="urn

pendaylight:bulk-flow:service"><bulk-flow-ds-item> <flow-name>test_1</flow-name> <flow-id>31#-0</flow-id> <node xmlns:inv="urn

pendaylight:inventory">/inv:nodes/inv:node[inv:id="openflow:128983239877"]</node> <barrier>false</barrier> <strict>false</strict> <hard-timeout>0</hard-timeout> <idle-timeout>0</idle-timeout> <priority>980</priority> <table_id>0</table_id> <cookie>16</cookie> <cookie_mask>255</cookie_mask> <match> <ethernet-match> <ethernet-type> <type>2048</type> </ethernet-type> </ethernet-match> <ip-match> <ip-protocol>6</ip-protocol> </ip-match> <tcp-destination-port>80</tcp-destination-port> <in-port>openflow:128983239877:1</in-port></match> <instructions> <instruction> <order>0</order> <apply-actions> <action> <order>0</order> <output-action> <output-node-connector>openflow:128983239877:2</output-node-connector> </output-action> </action> </apply-actions> </instruction> </instructions></bulk-flow-ds-item><bulk-flow-ds-item> <flow-name>test_2</flow-name> <flow-id>32#-0</flow-id> <node xmlns:inv="urn

pendaylight:inventory">/inv:nodes/inv:node[inv:id="openflow:128983239877"]</node> <barrier>false</barrier> <strict>false</strict> <hard-timeout>0</hard-timeout> <idle-timeout>0</idle-timeout> <priority>980</priority> <table_id>0</table_id> <cookie>16</cookie> <cookie_mask>255</cookie_mask> <match> <ethernet-match> <ethernet-type> <type>2048</type> </ethernet-type> </ethernet-match> <ip-match> <ip-protocol>6</ip-protocol> </ip-match> <tcp-destination-port>443</tcp-destination-port> <in-port>openflow:128983239877:1</in-port></match> <instructions> <instruction> <order>0</order> <apply-actions> <action> <order>0</order> <output-action> <output-node-connector>openflow:128983239877:2</output-node-connector> </output-action> </action> </apply-actions> </instruction> </instructions></bulk-flow-ds-item></input>

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<input xmlns="urn

pendaylight:bulk-flow:service">
<bulk-flow-ds-item>
<flow-name>test_1</flow-name>
<flow-id>31#-0</flow-id>
<node xmlns:inv="urn

pendaylight:inventory">/inv:nodes/inv:node[inv:id="openflow:128983239877"]</node>
<barrier>false</barrier>
<strict>false</strict>
<hard-timeout>0</hard-timeout>
<idle-timeout>0</idle-timeout>
<priority>980</priority>
<table_id>0</table_id>
<cookie>16</cookie>
<cookie_mask>255</cookie_mask>
<match>
   <ethernet-match>
            <ethernet-type>
            <type>2048</type>
         </ethernet-type>
   </ethernet-match>
   <ip-match>
      <ip-protocol>6</ip-protocol>
      </ip-match>
      <tcp-destination-port>80</tcp-destination-port>
         <in-port>openflow:128983239877:1</in-port>
</match>
<instructions>
      <instruction>
         <order>0</order>
         <apply-actions>
                     <action>
                  <order>0</order>
                  <output-action>
                     <output-node-connector>openflow:128983239877:2</output-node-connector>
                  </output-action>
                  </action>
         </apply-actions>
      </instruction>
</instructions>
</bulk-flow-ds-item>
<bulk-flow-ds-item>
<flow-name>test_2</flow-name>
<flow-id>32#-0</flow-id>
<node xmlns:inv="urn

pendaylight:inventory">/inv:nodes/inv:node[inv:id="openflow:128983239877"]</node>
<barrier>false</barrier>
<strict>false</strict>
<hard-timeout>0</hard-timeout>
<idle-timeout>0</idle-timeout>
<priority>980</priority>
<table_id>0</table_id>
<cookie>16</cookie>
<cookie_mask>255</cookie_mask>
<match>
   <ethernet-match>
            <ethernet-type>
            <type>2048</type>
         </ethernet-type>
   </ethernet-match>
   <ip-match>
      <ip-protocol>6</ip-protocol>
      </ip-match>
      <tcp-destination-port>443</tcp-destination-port>
         <in-port>openflow:128983239877:1</in-port>
</match>
<instructions>
      <instruction>
         <order>0</order>
         <apply-actions>
                     <action>
                  <order>0</order>
                  <output-action>
                     <output-node-connector>openflow:128983239877:2</output-node-connector>
                  </output-action>
                  </action>
         </apply-actions>
      </instruction>
</instructions>
</bulk-flow-ds-item>
</input>

下发流表

可以使用curl进行下发流表：

centec@ubuntu-onos-80:~/Applications$ curl -v -H "Expect:" -H "Content-Type: application/xml; charset=UTF-8" -X POST -d @test.xml http://admin:admin@10.10.11.80:8 ... k-flow:add-flows-ds* Hostname was NOT found in DNS cache* Trying 10.10.11.80...* Connected to 10.10.11.80 (10.10.11.80) port 8181 (#0)* Server auth using Basic with user 'admin'> POST /restconf/operations/sal-bulk-flow:add-flows-ds HTTP/1.1> Authorization: Basic YWRtaW46YWRtaW4=> User-Agent: curl/7.35.0> Host: 10.10.11.80:8181> Accept: */*> Content-Type: application/xml; charset=UTF-8> Content-Length: 2533> * upload completely sent off: 2533 out of 2533 bytes< HTTP/1.1 200 OK< Set-Cookie: JSESSIONID=1l76a46cmwjooy3b6r9bc2g7u

ath=/restconf< Expires: Thu, 01 Jan 1970 00:00:00 GMT< Set-Cookie: rememberMe=deleteMe; Path=/restconf; Max-Age=0; Expires=Tue, 23-May-2017 00:45:23 GMT< Content-Type: application/yang.operation+json< Content-Length: 0* Server Jetty(8.1.19.v20160209) is not blacklisted< Server: Jetty(8.1.19.v20160209)< * Connection #0 to host 10.10.11.80 left intactcentec@ubuntu-onos-80:~/Applications$

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centec@ubuntu-onos-80:~/Applications$ curl -v -H "Expect:" -H "Content-Type: application/xml; charset=UTF-8" -X POST -d @test.xml http://admin:admin@10.10.11.80:8 ... k-flow:add-flows-ds
* Hostname was NOT found in DNS cache
* Trying 10.10.11.80...
* Connected to 10.10.11.80 (10.10.11.80) port 8181 (#0)
* Server auth using Basic with user 'admin'
> POST /restconf/operations/sal-bulk-flow:add-flows-ds HTTP/1.1
> Authorization: Basic YWRtaW46YWRtaW4=
> User-Agent: curl/7.35.0
> Host: 10.10.11.80:8181
> Accept: */*
> Content-Type: application/xml; charset=UTF-8
> Content-Length: 2533
>
* upload completely sent off: 2533 out of 2533 bytes
< HTTP/1.1 200 OK
< Set-Cookie: JSESSIONID=1l76a46cmwjooy3b6r9bc2g7u

ath=/restconf
< Expires: Thu, 01 Jan 1970 00:00:00 GMT
< Set-Cookie: rememberMe=deleteMe; Path=/restconf; Max-Age=0; Expires=Tue, 23-May-2017 00:45:23 GMT
< Content-Type: application/yang.operation+json
< Content-Length: 0
* Server Jetty(8.1.19.v20160209) is not blacklisted
< Server: Jetty(8.1.19.v20160209)
<
* Connection #0 to host 10.10.11.80 left intact
centec@ubuntu-onos-80:~/Applications$

或者使用postman下发，将test.xml的内容，复制粘贴到postman的body，send POST。

效果相同，都会添加xml描述的两条流表：
DUT1# ovs-ofctl dump-flows br0 -O openflow13OFPST_FLOW reply (OF1.3) (xid=0x2): cookie=0x10, duration=1.6s, table=0, n_packets=0, n_bytes=0, priority=980,tcp,in_port=1,tp_dst=80 actions=output:2 cookie=0x10, duration=1.598s, table=0, n_packets=0, n_bytes=0, priority=980,tcp,in_port=1,tp_dst=443 actions=output:2 cookie=0x2b00000000000000, duration=1562.955s, table=0, n_packets=0, n_bytes=0, priority=100,dl_type=0x88cc actions=CONTROLLER:65535 cookie=0x2b00000000000000, duration=1562.957s, table=0, n_packets=0, n_bytes=0, priority=0 actions=dropDUT1#

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DUT1# ovs-ofctl dump-flows br0 -O openflow13
OFPST_FLOW reply (OF1.3) (xid=0x2):
cookie=0x10, duration=1.6s, table=0, n_packets=0, n_bytes=0, priority=980,tcp,in_port=1,tp_dst=80 actions=output:2
cookie=0x10, duration=1.598s, table=0, n_packets=0, n_bytes=0, priority=980,tcp,in_port=1,tp_dst=443 actions=output:2
cookie=0x2b00000000000000, duration=1562.955s, table=0, n_packets=0, n_bytes=0, priority=100,dl_type=0x88cc actions=CONTROLLER:65535
cookie=0x2b00000000000000, duration=1562.957s, table=0, n_packets=0, n_bytes=0, priority=0 actions=drop
DUT1#

删除流表

依然使用curl或是postman来send DELETE：
http://10.10.11.80:8181/restconf ... e-inventory:table/0

1	http://10.10.11.80:8181/restconf/config/opendaylight-inventory:nodes/node/openflow:128983239877/flow-node-inventory:table/0

*查看交换机,上步添加的指定流表被删除了。
DUT1# ovs-ofctl dump-flows br0 -O openflow13OFPST_FLOW reply (OF1.3) (xid=0x2): cookie=0x2b00000000000000, duration=1551.307s, table=0, n_packets=0, n_bytes=0, priority=100,dl_type=0x88cc actions=CONTROLLER:65535 cookie=0x2b00000000000000, duration=1551.309s, table=0, n_packets=0, n_bytes=0, priority=0 actions=dropDUT1#

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DUT1# ovs-ofctl dump-flows br0 -O openflow13
OFPST_FLOW reply (OF1.3) (xid=0x2):
cookie=0x2b00000000000000, duration=1551.307s, table=0, n_packets=0, n_bytes=0, priority=100,dl_type=0x88cc actions=CONTROLLER:65535
cookie=0x2b00000000000000, duration=1551.309s, table=0, n_packets=0, n_bytes=0, priority=0 actions=drop
DUT1#

扩展

上面举例的xml中包含两条流表，很容易扩展到添加更多的流表，每条流表放在和之间即可。
添加流表的问题，就转换成写xml文件的问题，这个大家就可以各显神通了。

补充说明

我也曾经尝试使用更习惯的JSON来写test.json，可是发现和用yangui一样，都会报错；
用谷歌也没有搜出有用的信息，怀疑是ODL的bug；
如果哪位知道如何解决，还望不吝赐教。
《SDN实战特训营第七期》课程详情 http://edu.sdnlab.com/training/480.html 转发文章至朋友圈，咨询报名即可享受9.5折优惠

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如何使用ODL的bulk-o-matic下发多条流表？

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