Configure SPBM IP Shortcuts

Before you begin

Enable IPv4 Shortcuts before you enable IPv6 Shortcuts. IPv6 Shortcuts depend on IPv4 Shortcuts for some functions.
Configure the required SPBM and IS-IS infrastructure, which includes the creation of SPBM B-VLANs.
Before redistributing routes into IS-IS, create the Customer VLANs, add slots/ports, and add the IP addresses and network masks.

About this task

To enable IP shortcuts on the BEBs, you can configure a circuitless IP address (loopback address) and specify this adress as the IS-IS source address. This source address is automatically advertised into IS-IS using TLV 135. In addition, to advertise routes from the BEBs into the SPBM network, you must enable route redistribution of direct and static routes into IS-IS.

Note

The loopback address on each switch or BEB must all be in different subnets to ensure connectivity between them. To do this, use a 32-bit mask with the CLIP address.

Procedure

In the navigation pane, expand Configuration > Fabric.
Select IS-IS.
From the Globals tab, in IpSourceAddress, specify the CLIP interface to use as the source address for SBPM IP Shortcuts.

Note

For IPv6 Shortcuts, select ipv6 in Ipv6SourceAddressType, and then use Ipv6SourceAddress to specify the CLIPv6 interface to use as the source address for SBPM IPv6 Shortcuts.
Select Apply.
In the navigation pane, expand Configuration > Fabric > SPBM.
Select the SPBM tab.
In IpShortcut, select enable.

Note

For IPv6 Shortcuts, select enable in Ipv6Shortcut.
Select Apply.
In the navigation pane, expand Configuration > IP.
Select Policy.
Select the Route Redistribution tab.
Select Insert to identify routes on the local switch to be announced into the SPBM network.
Specify the source protocols to redistribute into IS-IS.
In Protocol, ensure you specify isis as the destination protocol.
Select Insert.