Question

我将OpenDayLight用作OpenFlow控制器，我有2台主机连接到启用了OpenFlow的路由器（wr1043ndv4），该控制器可以正常工作以查看拓扑清单，但是当我想尝试从一台主机ping到另一个我不能。我已经按照ICMPv4指南进行了操作

根据此处的某些帖子，目标地址的子网掩码必须为/ 32，因此我将流放在了流表中，但主机之间无法ping通，甚至尝试建立子网主机上的掩码设置为/ 32，以匹配我在流程中输入的内容，但仍然无法正常工作。

这是我从指南站点更改的xml代码：

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<flow xmlns="urn:opendaylight:flow:inventory">
    <strict>false</strict>
    <instructions>
        <instruction>
            <order>0</order>
            <apply-actions>
                <action>
                    <order>0</order>
                    <dec-nw-ttl/>
                </action>
            </apply-actions>
        </instruction>
    </instructions>
    <table_id>235</table_id>
    <id>100</id>
    <cookie_mask>255</cookie_mask>
    <match>
        <ethernet-match>
            <ethernet-type>
                <type>2048</type>
            </ethernet-type>
            <ethernet-destination>
                <address>e8:06:88:xx:xx:xx</address>
            </ethernet-destination>
            <ethernet-source>
                <address>e8:06:88:xx:xx:xx</address>
            </ethernet-source>
        </ethernet-match>
        <ipv4-source>192.168.1.100/32</ipv4-source>
        <ipv4-destination>192.168.5.100/32</ipv4-destination>
        <ip-match>
            <ip-protocol>1</ip-protocol>
            <ip-dscp>27</ip-dscp>
            <ip-ecn>3</ip-ecn>
        </ip-match>
        <icmpv4-match>
            <icmpv4-type>6</icmpv4-type>
            <icmpv4-code>3</icmpv4-code>
        </icmpv4-match>
        <in-port>3</in-port>
    </match>
    <hard-timeout>1200</hard-timeout>
    <cookie>11</cookie>
    <idle-timeout>3400</idle-timeout>
    <flow-name>flowicmp1</flow-name>
    <priority>2</priority>
</flow>

，这是流表上显示的结果：

{
    "flow-node-inventory:table": [
        {
            "id": 235,
            "opendaylight-flow-table-statistics:flow-table-statistics": {
                "active-flows": 3,
                "packets-looked-up": 0,
                "packets-matched": 0
            },
            "flow": [
                {
                    "id": "100",
                    "priority": 2,
                    "opendaylight-flow-statistics:flow-statistics": {
                        "packet-count": 0,
                        "byte-count": 0,
                        "duration": {
                            "nanosecond": 589000000,
                            "second": 12
                        }
                    },
                    "table_id": 235,
                    "cookie_mask": 0,
                    "hard-timeout": 1200,
                    "match": {
                        "ethernet-match": {
                            "ethernet-source": {
                                "address": "e8:06:88:xx:xx:xx"
                            },
                            "ethernet-type": {
                                "type": 2048
                            },
                            "ethernet-destination": {
                                "address": "e8:06:88:xx:xx:xx"
                            }
                        },
                        "icmpv4-match": {
                            "icmpv4-code": 3,
                            "icmpv4-type": 6
                        },
                        "ip-match": {
                            "ip-dscp": 27,
                            "ip-protocol": 1,
                            "ip-ecn": 3
                        },
                        "ipv4-destination": "192.168.5.100/32",
                        "ipv4-source": "192.168.1.100/32",
                        "in-port": "3"
                    },
                    "cookie": 11,
                    "flags": "",
                    "instructions": {
                        "instruction": [
                            {
                                "order": 0,
                                "apply-actions": {
                                    "action": [
                                        {
                                            "order": 0,
                                            "dec-nw-ttl": {}
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "idle-timeout": 3400
                },

我做错了什么？我希望主机在进行流量推送后能够相互ping通。

Answer 1

您的流程动作似乎只是减少ttl。你想要要转发出另一个端口的动作？

也是，您为流表提供的输出来自配置数据存储还是可操作的？如果您添加流（例如通过REST），它将结束在配置数据存储区中。但是，如果流程从未编程过在openflow交换机上，它将不会最终出现在操作数据存储区中。的运营数据存储区反映了网络的实际状态，而 config数据存储区反映了“所需”状态。

完成ICMPv4流后，主机无法ping通

1 个答案: