supervlan
Explanation:
1. Understanding VLAN Aggregation in Huawei Switches
* VLAN aggregation is a technique that groups multiple VLANs (sub-VLANs) under a single Super- VLAN.
* Super-VLANs do not have member interfaces but include multiple Sub-VLANs that share a common gateway (VLANIF interface).
2. Inter-Sub-VLAN Communication Requirement
* By default, hosts in different sub-VLANs cannot communicate directly.
* To enable communication between different sub-VLANs within the same Super-VLAN, an inter- sub-VLAN proxy must be enabled.
* This is done using the inter-sub-vlan-proxy enable command in the VLANIF interface of the Super- VLAN.
3. Correct Command Usage
* The command format is:
shell
CopyEdit
supervlan inter-sub-vlan-proxy enable
* This command must be executed under VLANIF 10, corresponding to the Super-VLAN.
4. Why is the Answer "supervlan"?
* The missing parameter in the command should be supervlan, because it is used to enable communication between Sub-VLANs under a Super-VLAN.
* This is a specific Huawei command used in HCIP-Datacom-Advanced Routing & Switching Technology certification.