Do network bridges transparently transmit packets with VLAN tags

25

Yes, network bridges transparently transmit packets with virtual local area network (VLAN) tags. VLANIF interfaces, however, do not transparently transmit packets with VLAN tags. Using sub-interfaces to transparently transmit packets with VLAN tags is not recommended.

Other related questions:
Can a bridge transparently transmit packets carrying VLAN tags
A bridge on an AR router supports the transparently transmission of VLAN packets. However, a VLANIF interface does not support the transparently transmission of VLAN packets. It is not recommended that the transparent transmission of VLAN packets should be performed on sub-interfaces.

Whether the bridge can be transparently transmitted packets carrying VLANTAG
The AR routers bridge supports VLAN transparent transmission,VLANIF interface does not support encryption, the sub interface is not recommended.

Why inner tags are removed when the VLAN-Mapping transparently transmits double-tagged packets after the VLAN-Stacking is configured
In S2752, S3752, S5752EI V100R003, and subsequent versions, after the VLAN-Stacking and VLAN-Mapping are configured on outbound ports, inner tags are removed when cross-chip double-tagged packets are transparently transmitted, interrupting services. During the configuration, set the two ports for forwarding to the same chip.

Do network bridges on AR series routers transparently transmit BPDUs
No. Network bridges on all models of AR series routers do not transparently transmit BPDUs.

How do I configure trunk interface of S series switch
Example for configuring a VLAN for a trunk interface For S series switches (except S1700 switches): A trunk interface can connect other switches and can join multiple VLANs. The interface is added to the PVID VLAN in untagged mode and to other VLANs in tagged mode. [HUAWEI]vlan batch 2 3 //Create a VLAN. [HUAWEI]interface gigabitethernet 0/0/3 [HUAWEI-GigabitEthernet0/0/3]port link-type trunk //Sets the link type of the interface to trunk. [HUAWEI-GigabitEthernet0/0/3]port trunk allow-pass vlan 2 to 10 //Add the interface to VLANs 2 to 10. [HUAWEI-GigabitEthernet0/0/3]port trunk pvid vlan 2 //(Optional) Specify VLAN 2 as the default VLAN (default value: VLAN 1).

If you have more questions, you can seek help from following ways:
To iKnow To Live Chat
Scroll to top