Service Manual

pair. With VLT being a Layer 2 redundancy feature, support for configuration of VLT nodes in a PVLAN
enables Layer 2 security functionalities to be achieved. This section contains the following topics that
describe how to configure a VLT VLAN or a VLT LAG (VLTi link) and assign that VLT interface to a PVLAN.
Creating a VLT LAG or a VLT VLAN
1. Configure the port channel 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 as
described in .
NOTE: To be included in the VLTi, the port channel must be in Default mode (no switchport
or VLAN assigned).
2. Remove an IP address from the interface.
INTERFACE PORT-CHANNEL mode
no ip address
3. 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:
• 1-Gigabit Ethernet: Enter gigabitethernet slot/port.
• 10-Gigabit Ethernet: Enter tengigabitethernet slot/port.
4. Ensure that the port channel is active.
INTERFACE PORT-CHANNEL mode
no shutdown
5. To configure the VLT interconnect, repeat Steps 1–4 on the VLT peer switch.
6. 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.
7. 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.
8. (Optional) To configure a VLT LAG, enter the VLAN ID number of the VLAN where the VLT forwards
packets received on the VLTi from an adjacent peer that is down.
VLT DOMAIN CONFIGURATION mode
Virtual Link Trunking (VLT)
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