Administrator Guide
3 Place the interface in Layer 2 mode.
INTERFACE PORT-CHANNEL mode
switchport
4 Add one or more port interfaces to the port channel.
INTERFACE PORT-CHANNEL mode
channel-member interface
interface: specify one of the following interface types:
• 10-Gigabit Ethernet: enter tengigabitethernet slot/port.
5 Ensure that the port channel is active.
INTERFACE PORT-CHANNEL mode
no shutdown
6 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
The valid port-channel ID numbers are from 1 to 128.
7 Repeat Steps 1 to 6 on the VLT peer switch to configure the same port channel as part of the VLT
domain.
8 On an attached switch or server: To connect to the VLT domain and add port channels to it, configure
a port channel.
To configure the VLAN where a VLT peer forwards received packets over the VLTi from an adjacent VLT peer
that is down, use the peer-down-vlan parameter. When a VLT peer with BMP reboots, untagged DHCP
discover packets are sent to the peer over the VLTi. Using this configuration ensures the DHCP discover
packets are forwarded to the VLAN that has the DHCP server.
Configuring a VLT VLAN Peer-Down (Optional)
To configure a VLT VLAN peer-down, use the following commands.
1 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.
2 Enter the port-channel number that acts as the interconnect trunk.
VLT DOMAIN CONFIGURATION mode
peer-link port-channel id-number
The range is from 1 to 128.
Virtual Link Trunking (VLT) 969