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 Logical switch information: Logical Switch Name: 28805c1d-0122-495d-85df-19abd647d772 Flags: Created by both VNI: 100 Num of Remote MAC: 1 Num of Local MAC: 0
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.