Configure BEBs for Inter-VSN Routing

Before you begin

You must configure the required SPBM and IS-IS infrastructure.

About this task

Use Inter-VSN routing to route between IP networks on Layer 2 VLANs with different I-SIDs. Inter-VSN routing is typically used only to extend a VLAN as a Layer 2 Virtual Services Network (VSN) for applications such as vMotion. Use IP Shortcuts or Layer 3 VSNs to route traffic. You must configure both the Backbone Edge Bridges (BEBs) and the Backbone Core Bridge (BCB).

Follow these steps on the BEBs that contain the VSNs you want to route traffic between. To configure the BCB, see Configure BCBs for Inter-VSN Routing.

Note

To enable inter-VSN routing, you must configure the IP interface where the routing instance exists.

Procedure

Create a customer VLAN (C-VLAN) by port and add ports in the C-VLAN:
1. In the navigation pane, expand Configuration > VLAN.
2. Select VLANs.
3. On the Basic tab, select Insert.
4. For Id, type an unused VLAN ID, or use the ID provided.
5. For Name, type the VLAN name, or use the name provided.
6. For Color Identifier, select a color from the list, or use the color provided.
7. For Type, select byPort.
8. For PortMembers, select the ellipsis (...).
9. Select the ports to add as member ports.
  
  The ports that are selected are recessed, while the nonselected ports are not recessed. Port numbers that are dimmed cannot be selected as VLAN port members.
10. Select OK.
11. Select Insert.
Map a C-VLAN to an I-SID:
1. From the same Configuration > VLAN > VLANs navigation path, select the Advanced tab.
2. For Isid, specify the I-SID to associate with the specified VLAN.
  
  The switch reserves I-SID 0x00ffffff. The switch uses this I-SID to advertise the virtual BMAC in a SMLT dual-homing environment. The platform clears the receive and transmit bit of this I-SID, therefore I-SID 0x00ffffff cannot be used for any other service.
3. Select Apply.
  
  Important
  
  When a protocol VLAN is created, all ports are added to the VLAN including SPBM ports. To configure a protocol-based VLAN as a C-VLAN, you must first remove the SPBM-enabled ports from the protocol based VLAN, and then configure the protocol-based VLAN as a C-VLAN.
Configure the Backbone Core Bridge (BCB) for Inter-VSN Routing. For more information, see Configure BCBs for Inter-VSN Routing.