Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

To configure a multi-domain VLT between two VLT domains on your network, use the following procedure.

1. Configure the port channel to be used for the VLT interconnect on a VLT switch and enter Interface Configuration mode. CONFIGURATION mode interface port-channel id-number Enter the same port-channel number configured with the peer-link port-channel command.
2. Add one or more port interfaces to the port channel. INTERFACE PORT-CHANNEL mode channel-member interface interface specifies one of the following interface types:
   • 10-Gigabit Ethernet: Enter tengigabitethernet slot/port .
3. Enter VLT-domain configuration mode for a specified VLT domain. CONFIGURATION mode vlt domain domain-id The range of domain IDs is from 1 to 1000.
4. Enter the port-channel number that will act as the interconnect trunk. VLT DOMAIN CONFIGURATION mode peer-link port-channel id-number The range is from 1 to 128.
5. Configure the IP address of the management interface on the remote VLT peer to be used as the endpoint of the VLT backup link for sending out-of-band hello messages. VLT DOMAIN CONFIGURATION mode back-up destination ip-address [interval seconds] You can optionally specify the time interval used to send hello messages. The range is from 1 to 5 seconds.
6. When you create a VLT domain on a switch, the system automatically creates a VLT-system MAC address used for internal system operations. VLT DOMAIN CONFIGURATION mode system-mac mac-address mac-address Use the system-mac command to explicitly configure the default MAC address for the domain by entering a new MAC address in the format: aaaa.bbbb.cccc. You must also reconfigure the same MAC address on the VLT peer switch. Use this command to minimize the time required for the VLT system to synchronize the default MAC address of the VLT domain on both peer switches when one peer switch reboots.
7. When you create a VLT domain on a switch, the system automatically assigns a unique unit ID (0 or 1) to each peer switch. The unit IDs are used for internal system operations. VLT DOMAIN CONFIGURATION mode unit-id {0 | 1} Use the unit-id command to explicitly configure the default values on each peer switch. You must configure a different unit ID (0 or 1) on each peer switch. Use this command to minimize the time required for the VLT system to determine the unit ID assigned to each peer switch when one peer switch reboots.
8. Configure multi-domain VLT. Configure the port channel to be used for the VLT interconnect on a VLT switch and enter interface configuration mode. CONFIGURATION mode interface port-channel id-number Enter the same port-channel number configured with the peer-link port-channel command.
9. Place the interface in Layer 2 mode. INTERFACE PORT-CHANNEL mode switchport
10. Associate the port channel to the corresponding port channel in the VLT peer for the VLT connection to an attached device. INTERFACE PORT-CHANNEL mode vlt-peer-lag port-channel id-number Valid port-channel ID numbers are from 1 to 128.
11. Ensure that the port channel is active. INTERFACE PORT-CHANNEL mode no shutdown
12. Add links to the mVLT port. Configure a range of interfaces to bulk configure. CONFIGURATION mode interface range { port-channel id}
13. Enable LACP on the LAN port. INTERFACE mode port-channel-protocol lacp
14. Configure the LACP port channel mode. INTERFACE mode port-channel number mode [active]
15. Ensure that the interface is active. MANAGEMENT INTERFACE mode no shutdown
16. Repeat steps 1 through 15 for the VLT peer node in Domain 1.
17. Repeat steps 1 through 15 for the first VLT node in Domain 2.
18. Repeat steps 1 through 15 for the VLT peer node in Domain 2.