How do I configure native VLAN in Juniper?
To configure the native VLAN ID using the CLI:
- Configure the port mode as trunk so that the interface is on multiple VLANs and can multiplex traffic between different VLANs. Trunk interfaces typically connect to other switches and to routers on the LAN.
- Configure the native VLAN ID:
What is Juniper default VLAN?
In Juniper switches, VLAN named Default is present by default and all the interfaces are under this default VLAN. Unlike Cisco switches Juniper switches doesn’t support VTP (VLAN Trunking Protocol) or DTP (Dynamic Trunking Protocol). Juniper switches support GVRP (Generic Attribute Registration Protocol) though.
What command will set the native VLAN on Juniper switch port?
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| Question | Answer |
|---|---|
| What command will set the native VLAN on a Juniper switch port? | set native-vlan-id |
| You are working on a Cisco switch and need to learn what VLANs exist on the switch. Which command will list the current VLANs recognized by the switch? | show vlan |
Why do we use native VLAN?
Conclusion. Finally, we can conclude that the basic purpose of native VLAN is to serve it as a common identifier on opposing ends of a trunk link. To carry untagged traffic which is generated by a computer device attached to a switch port, which is configured with the native VLAN.
How do I create a VLAN in native VLAN?
To configure the native VLAN ID for the virtual Ethernet interface, use the switchport trunk native vlan command. To remove the native VLAN ID from the virtual Ethernet interface, use the no form of this command.
What is native VLAN used for?
Do you need a juniper VLAN identifier?
Contact Juniper Support Switches support receiving and forwarding routed or bridged Ethernet frames with 802.1Q VLAN tags. The logical interface on which untagged packets are received must have the same native VLAN ID as that on the physical interface.
What happens when native VLAN ID is not mapped?
On switches with non-ELS Junos OS, the native VLAN will NOT tag traffic if native VLAN ID is not mapped in “VLAN Member” configuration. ge-0/0/23 { unit 0 { family ethernet-switching { port-mode trunk; vlan { members [ Cust_150 Cust_151 ]; } native-vlan-id 1; <— Native VLAN traffic will be sent as untagged.
Which is member of the trunk and native VLANs?
MGMT IS a member of the trunk and native VLANs: So, if a tagged VLAN needs to be sent as untagged traffic, it should be configured only with the native VLAN ID and the VLAN should not be added under the port mode trunk configuration. native-vlan-id 1; << will be sent as untagged.
Why does Junos Els not recognize native VLAN?
On the other hand, Junos ELS version will NOT recognize the same physical port active into native VLAN even when “native VLAN” is enabled on the specific interface. Communication will fail though using Native VLAN if it isn’t mapped into “vlan members” on the specific interface.