Addendum

VLT LAG Mode PVLAN Mode of VLT VLAN ICL VLAN
Membership
Mac
Synchronization
Peer1 Peer2 Peer1 Peer2
Trunk Access Primary/Normal Secondary No No
Configuring a VLT VLAN or LAG in a PVLAN
You can configure the VLT peers or nodes in a private VLAN (PVLAN). Because the VLT LAG interfaces are
terminated on two different nodes, PVLAN configuration of VLT VLANs and VLT LAGs are symmetrical
and identical on both the VLT peers. PVLANs provide Layer 2 isolation between ports within the same
VLAN. A PVLAN partitions a traditional VLAN into subdomains identified by a primary and secondary VLAN
pair. With VLT being a Layer 2 redundancy mechanism, 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
Enabling VLT and Creating a VLT Domain.
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. Repeat Steps 1 to 4 on the VLT peer switch to configure the VLT interconnect.
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.
Virtual Link Trunking (VLT)
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