Statement introduced in Junos OS Release 17.3R1 for QFX Series switches.
On a QFX5110 switch, configure the maximum number of physical interfaces reserved for use in an Ethernet VPN-Virtual Extensible LAN (EVPN-VXLAN) overlay network.
The QFX5110 switch supports a maximum of 12,288 physical interfaces for use in either underlay networks or an EVPN-VXLAN overlay network. By default, the switch allocates 4000 physical interfaces for use in an EVPN-VXLAN network, which leaves 8288 physical interfaces for use in underlay networks. The interface-num configuration statement enables you to re-allocate the maximum number of physical interfaces reserved for use in an EVPN-VXLAN network.
If you do not plan to use a QFX5110 switch in an EVPN-VXLAN network, you can set the interface-num configuration statement to 0, which allocates all 12,288 physical interfaces for use in underlay networks.
Conversely, if you plan to use a QFX5110 switch in an EVPN-VXLAN network, you can re-allocate a greater number of the physical interfaces to the EVPN-VXLAN network.
Changing the default number of physical interfaces reserved for use in an EVPN-VXLAN network causes the Packet Forwarding Engine to restart. Restarting the Packet Forwarding Engine interrupts all forwarding operations. Therefore, we strongly recommend using this configuration statement before the EVPN-VXLAN network becomes operational.
Range: 0 through 12,288. The specified value must be a multiple of 2048—for example, 2048, 4096, 6144, and so on.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.