OpenvSwitch 问题小记

最新推荐文章于 2023-01-14 22:24:47 发布

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最新推荐文章于 2023-01-14 22:24:47 发布

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原文链接：http://www.cnblogs.com/gaozhengwei/p/7099772.html

本文详细介绍了OpenFlow网络环境中流量转发表的操作方法，包括如何将数据包输出到入口端口、重新提交与循环利用的区别，以及OpenvSwitch中多种流量转发表的使用场景和目的。这些知识对于理解OpenFlow交换机的行为以及进行故障排除非常有用。

1.Explain how to output to the ingress port in OpenFlow

2.Resubmit vs Recirculate

3. Why are there so many different ways to dump flows?

Open vSwitch has two kinds of flows (see the previous question), so it has commands with different purposes for dumping each kind of flow:

ovs-ofctl dump-flows <br> dumps OpenFlow flows, excluding hidden flows. This is the most commonly useful form of flow dump. (Unlike the other commands, this should work with any OpenFlow switch, not just Open vSwitch.)
ovs-appctl bridge/dump-flows <br> dumps OpenFlow flows, including hidden flows. This is occasionally useful for troubleshooting suspected issues with in-band control.
ovs-dpctl dump-flows [dp] dumps the datapath flow table entries for a Linux kernel-based datapath. In Open vSwitch 1.10 and later, ovs-vswitchd merges multiple switches into a single datapath, so it will show all the flows on all your kernel-based switches. This command can occasionally be useful for debugging.
ovs-appctl dpif/dump-flows <br>, new in Open vSwitch 1.10, dumps datapath flows for only the specified bridge, regardless of the type.

转载于:https://www.cnblogs.com/gaozhengwei/p/7099772.html