Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

 
ON THIS PAGE
 

l2pt (Destination Tunnels)

Syntax

Hierarchy Level

Description

Enable Layer 2 (L2) protocol tunneling (L2PT) across the encapsulation tunnels in an EVPN network.

Use this statement to enable a device to receive protocol control frames coming in on an access interface and tunnel those frames across the encapsulation tunnels on the device. Configure this statement with the interface name option (required) and each of the following (required):

  1. The destination tunnel-type option.

  2. The protocol option for each bridge protocol data unit (BPDU) type you want the device to tunnel from the access interface across the encapsulation tunnels on the device. Or, specify the all option to enable L2PT for all of the supported protocols.

Note:

When you enable L2PT over VXLAN for a supported protocol, the device transparently forwards the protocol control frames with that protocol destination MAC address. If you enable L2PT for a protocol that has the same destination MAC address as one or more other supported protocols, the device transparently forwards the control frames for all of those protocols.

Options

interface name

(Required) Interface name on which to enable L2PT across a destination tunnel type on the device. The interface can be a physical interface or an aggregated Ethernet (AE) interface.
destination tunnel-type

(Required) Destination tunnel type over which to enable L2PT—you must specify one of the supported encapsulation tunnel types:

  • vxlan-tunnel—Enable L2PT over VXLAN encapsulation tunnels on the device.

    Note:

    The vxlan-tunnel tunnel type is currently the only destination encapsulation tunnel type supported with this statement.
enable-all-ifl

Enable L2PT for all the logical interfaces under the specified L2PT-enabled physical interface.

This option is required on QFX5130 and QFX5700 switches to ensure any logical interfaces you configure on an L2PT-enabled physical interface end up with the same L2PT settings when you commit the configuration.

protocol (all | protocol-name)

(Required) Protocol for which to transparently tunnel control packets from the specified interface across the destination tunnel type. Some of the available protocol options might not be supported with all encapsulation tunnel types. We support the protocol options listed below with the vxlan-tunnel destination tunnel type.

Note:

EX Series and QFX Series with Junos OS don't include the pvstp, stp, and vstp options listed below for tunneling STP, MSTP, RSTP, PVST/PVST+, and VSTP BPDUs (called xSTP BPDUs here for brevity). These devices flood xSTP control BPDUs into the VXLAN tunnels by default.

If you don't want these devices to tunnel xSTP control BPDUs over VXLAN, you can configure the BPDU protection feature on the ingress access interface. See bpdu-block and bpdu-block-on-edge for details on the BPDU protection feature.

Specify the all option to enable L2PT for all of the supported protocol options, or specify one of the following supported protocol options:

  • cdp—Cisco Discovery Protocol (CDP)

  • elmi—Ethernet Local Management Interface (E-LMI)

  • gvrp—Generic Attribute Registration Protocol (GARP) VLAN Registration Protocol (GVRP)

  • ieee8021x—IEEE 802.1X authentication

  • ieee8023ah—IEEE 802.3ah Operation, Administration, and Maintenance (OAM) link fault management (LFM)

  • lacp—Link Aggregation Control Protocol (LACP)

  • lldp—Link Layer Discovery Protocol (LLDP)

  • mmrp—Multiple MAC Registration Protocol (MMRP)

  • mvrp—MVRP VLAN Registration Protocol (MVRP)

  • pvstp—Per-VLAN Spanning Tree (PVST) and Per-VLAN Spanning Tree Plus (PVST+) protocols (Junos OS Evolved QFX Series switches only)

  • stp—Spanning Tree Protocol (STP), Rapid Spanning Tree Protocol (RSTP), and Multiple Spanning Tree Protocol (MSTP) (Junos OS Evolved QFX Series switches only)

  • udld—Unidirectional Link Detection (UDLD)

  • vstp—VLAN Spanning Tree Protocol (VSTP) (Junos OS Evolved QFX Series switches only)

  • vtp—VLAN Trunking Protocol (VTP)

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 24.2R1.

Related Documentation