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

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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 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.
    • 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 peer-link port-channel id-number peer-down-vlan vlan interface number The range is from 1 to 4094.

Associating the VLT LAG or VLT VLAN in a PVLAN

  1. Access INTERFACE mode for the port that you want to assign to a PVLAN. CONFIGURATION mode interface interface
  2. Enable the port. INTERFACE mode no shutdown
  3. Set the port in Layer 2 mode. INTERFACE mode switchport
  4. Select the PVLAN mode. INTERFACE mode switchport mode private-vlan {host | promiscuous | trunk}
    • host (isolated or community VLAN port)
    • promiscuous (intra-VLAN communication port)
    • trunk (inter-switch PVLAN hub port)
  5. Access INTERFACE VLAN mode for the VLAN to which you want to assign the PVLAN interfaces. CONFIGURATION mode interface vlan vlan-id
  6. Enable the VLAN. INTERFACE VLAN mode no shutdown
  7. To obtain maximum VLT resiliency, configure the PVLAN IDs and mappings to be identical on both the VLT peer nodes. Set the PVLAN mode of the selected VLAN to primary. INTERFACE VLAN mode private-vlan mode primary
  8. Map secondary VLANs to the selected primary VLAN. INTERFACE VLAN mode private-vlan mapping secondary-vlan vlan-list The list of secondary VLANs can be:
    • Specified in comma-delimited ( VLAN-ID,VLAN-ID ) or hyphenated-range format ( VLAN-ID-VLAN-ID ).
    • Specified with this command even before they have been created.
    • Amended by specifying the new secondary VLAN to be added to the list.

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