Adding Switches to an Existing Fabric

For this example, the switches are connected as in the figure below labeled Directly Connected Switches in a Fabric:

Figure 4 - Directly Connected Switches in a Fabric

Netvisor One uses global discoveries for identifying fabrics in the network as joinable fabrics for the fabric-join command. Upon receipt, the receiver sends back a global keep-alive with node and fabric information.

When you have more than one switch, you must add it to the fabric to take advantage of the features offered by Netvisor ONE. To add the new switch, use the following command on one of the switches:

CLI (network-admin@switch) > fabric-join name corp-fabric


You can join the fabric using either the fabric name or the switch IP address. If you use the Tab key to display the available options, all fabrics configured on the network are displayed as options.

If you specify a password for the fabric, you must type it in twice. The password is used to encrypt communication between the nodes in the fabric. When you join the fabric from a node, you must type in the password to join it.

You can specify a specific VLAN for the fabric when you create a new one, or by default, the fabric uses VLAN1. However, you cannot change the fabric VLAN without recreating the fabric.

Note: Avoid creating fabrics with the same name.

When the fabric is created, the switch begins sending multicast messages out on Layer 2 looking for other switches. These messages are not propagated to other networks. This is how Switch B in the above figure learns about the fabric.

Once Switch B joins the fabric, the fabric configuration (commands with scope fabric) is downloaded on Switch B and the switch reboots.

If you want to connect to a switch over Layer 3, you must specify the IP address for the switch in the fabric using the following command:

CLI (network-admin@switch) > fabric-join switch-ip

fabric joined