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.
• 40-Gigabit Ethernet: Enter fortygigabitethernet 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}
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Virtual Link Trunking (VLT)
