EVPN
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Support for BPDU protection for EVPN-VXLAN (PTX10001-36MR, PTX10004, PTX10008, and PTX10016)—Starting in Junos OS Evolved Release 22.3R1, we support bridge protocol data unit (BPDU) protection for EVPN-VXLAN.
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Loop detection for EVPN-VXLAN fabrics (PTX10001-36MR, PTX10004, PTX10008, and PTX10016)—You can configure loop detection on the server-facing Layer 2 (L2) interfaces of leaf devices in EVPN-VXLAN fabrics. This feature can detect the following types of Ethernet loops:
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A loop between two interfaces with different Ethernet segment identifiers (ESIs). This loop is typically caused by miswiring fabric components.
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A loop between two interfaces with the same ESI. This loop is typically caused by miswiring a third-party device to the fabric.
After you enable loop detection, the interfaces periodically send multicast protocol data units (PDUs). If a loop detection-enabled interface receives a PDU, a loop is detected and the interface is brought down. You must bring the interface back up manually or wait until a revert-interval timer expires.
To configure loop detection, include the
interface interface-name
configuration statement at the[edit protocols loop-detect enhanced]
hierarchy level. You can also configure the following attributes on that interface:-
vlan-id
—Configure a VLAN ID if the interface is configured in the enterprise style. (The operating system supports service provider and enterprise styles of configuration for switch interfaces. Service provider style requires more configuration but provides greater flexibility. Enterprise style is easier to configure but offers less functionality. In enterprise style, you place logical interfaces into Layer 2 mode by specifyingethernet-switching
as the interface family. You can configure theethernet-switching
option only on unit 0. You cannot bind a VLAN ID to unit 0.) -
action
—Specify the action that occurs if the interface receives a PDU. -
transmit-interval
—Specify the interval between PDU transmissions. -
revert-interval
—Specify the interval after which the interface is brought back up.
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