How to configure a super-VLAN on an AR router

If interfaces cannot implement Layer 2 and Layer 3 conversion, enable the sub-interface or route interconnection function. For details, see the URL: Example for Configuring VLANs to Communicate Through Sub-interfaces .

An AR router provides two technologies to implement inter-VLAN communication: 1. VLANIF interface Create VLANIF interfaces and configure their IP addresses for VLANs of different services, and configure route interconnection to achieve the access between VLANs. For details, see the URL: Example for Configuring a VLANIF Interface to Implement Inter-VLAN Communication . Create a sub-interface on the CE interface of the device, configure an IP address and a termination VLAN for the sub-interface, and configure the default gateways of user hosts as IP addresses of the sub-interface to implement user communication between VLANs. For details, see the URL: Example for Configuring VLANs to Communicate Through Sub-interfaces .

Dot1Q termination: Create a sub-interface on the CE interface of the device, and run the dot1q termination vid pe-vid command to configure a termination VLAN for the sub-interface. QinQ termination: Create a sub-interface on the CE interface of the device, and run the qinq termination pe-vid pe-vid ce-vid ce-vid1 command to configure the two-tag termination feature for the sub-interface.

For S series switches (except the S1700), you are not advised to create a VRRP group on the corresponding VLANIF interface for a super-VLAN. If such a VRRP group has been created, the total number of VLANs (including common VLANs, super-VLANs, and sub-VLANs) in the VRRP group cannot exceed 256 to minimize impact on host performance. By default, if a VRRP group is configured for a super-VLAN, the master switch sends VRRP Advertisement packets to the super-VLAN's sub-VLAN that is in Up state and has the smallest VLAN ID among all the sub-VLANs. You can run a related command to configure VRRP Advertisement packets to be sent in a specified sub-VLAN. This prevents VRRP Advertisement packets from being broadcast in all sub-VLANs, reducing network bandwidth consumption. The configuration procedure is as follows: 1. Run the system-view command to enter the system view. 2. Run the interface vlanif vlan-id command to enter the VLANIF interface view. 3. Run the vrrp advertise send-mode { sub-vlan-id | all } command to configure a mode in which the master switch sends VRRP Advertisement packets in a super-VLAN. - sub-vlan-id: specifies the ID of a sub-VLAN where the master switch sends VRRP Advertisement packets. - all: indicates that the master switch sends VRRP Advertisement packets to all sub-VLANs in a super-VLAN. Note: The parameter all is not recommended. If all is configured, a super-VLAN broadcasts a VRRP Advertisement packet to all its sub-VLANs, which increases bandwidth usage.