Create a Virtual IST using EDM

vIST creates a virtualized channel through the SPBM cloud, and this channel connects two SMLT devices to form a virtualized Switch Cluster. Note that the SPBM cloud can consist of as few as two nodes.

Important

When you create a vIST, VLANs assigned to SMLT ports must have an I-SID assigned.
If you assign a VLAN to an I-SID on one SMLT-BEB node, then you must create the same VLAN and assign it to the same I-SID on the peer SMLT-BEB node even if no devices are connected to this second node.
The vIST VLAN must also be associated with an I-SID. You can use the same vIST VLAN in another part of your network, but the I-SID associated with the vIST VLAN must not be used anywhere else.

Note

Simplified Virtual-IST (vIST) is for non-SPB customers who use SMLT with legacy IST. Simplified VIST is available only for legacy multicast deployments when the boot configuration flag (spbm-config-mode) is disabled.

Before you begin

Enable SPBM and IS-IS globally.
Configure SPBM and IS-IS.
Configure a Layer 2 VSN by assigning an I-SID to the C-VLAN, which is used by the vIST.

About this task

Important

Do not change the system MTU to less than the default value of 1950 bytes. The system MTU must be 1950 or jumbo because of the header size increase when transmitting packets over the SPBM cloud.

Procedure

In the navigation pane, expand the Configuration > VLAN > MLT/LACP folders.
Select the Virtual IST tab.
In the PeerIp field, type the peer IP address.
In the VlanId field, enter a VLAN ID.
Select Apply.

Virtual IST field descriptions

Use the data in the following table to help you configure the Virtual IST tab.


Name	Description
SessionStatus	Displays the status of the vIST session.
PeerIp	Specifies the peer IP address, which is the IP address of the vIST VLAN on the other aggregation switch.
VlanId	Configures a vIST VLAN ID number.