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Verifying That a Logical Switch and Corresponding Junos OS OVSDB-Managed VXLAN Are Working Properly

 

Purpose

Verify the following:

  • A logical switch, which is configured in an NSX environment, or a virtual network, which is configured in a Contrail environment, is learning MAC addresses in their respective environments.

  • The corresponding OVSDB-managed Virtual Extensible LAN (VXLAN), which is configured on a Juniper Networks device, is learning MAC addresses in the Junos OS environment.

  • The logical switch or virtual network and OVSDB-managed VXLAN are exchanging the MAC addresses learned in their respective environments so that virtual and physical servers can communicate.

Action

To verify that a logical switch or virtual network and its corresponding OVSDB-managed VXLAN are learning and exchanging MAC addresses in their respective environments, enter the show ovsdb logical-switch operational mode command.

user@device> show ovsdb logical-switch
Note

In the Open vSwitch Database (OVSDB) schema for physical devices, the logical switch table stores information about the Layer 2 broadcast domain that you configured in a VMware NSX or Contrail environment. In the NSX environment, the Layer 2 broadcast domain is known as a logical switch, while in the Contrail environment, the domain is known as a virtual network.

In the context of the show ovsdb logical-switch command, the term logical switch refers to the logical switch or virtual network that was configured in the NSX or Contrail environments, respectively, and the corresponding configuration that was pushed to the OVSDB schema.

Meaning

The output in the Flags field (Created by both) indicates that the logical switch or virtual network and its corresponding OVSDB-managed VXLAN are both properly configured. In this state, the logical switch or virtual network and the VXLAN are learning and exchanging MAC addresses in their respective environments.

If the output in the Flags field displays a state other than Created by both, see Troubleshooting a Nonoperational Logical Switch and Corresponding Junos OS OVSDB-Managed VXLAN.

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