Example For Configuring Vlan Transparent Transmission - Huawei Quidway S7700 Configuration Manual - Ethernet

Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet
#
sysname Quidway
#
vlan batch 2 6
#
voice-vlan mac-address 0011-2200-0000 mask ffff-ff00-0000
#
interface GigabitEthernet1/0/1
port hybrid pvid vlan 6
port hybrid tagged vlan 2
port hybrid untagged vlan 6
voice-vlan 2 enable
voice-vlan mode manual
#
return

3.12.14 Example for Configuring VLAN Transparent Transmission

In this example, a device at the convergence layer is deployed with VLAN transparent
transmission. This allows VLAN data to be directly forwarded at the convergence layer without
sending VLAN data to the CPU. This improves the performance of the device, and prevents
attacks initiated by sending malicious data.
Networking Requirements
A company has multiple subsidiary companies. When the parent company attempts to
communicate with a subsidiary company, data is processed by a core switch before being sent
to the parent company or subsidiary company. If multiple subsidiary companies communicate
with the parent company at the same time, processing capabilities of the core switch deteriorate.
The communication efficiency is adversely affected and communication expenditure increases.
VLAN transparent transport can be configured on the core switch to prevent this problem.
As shown in
forwards data from the specified VLAN instead of sending the data to its CPU. This improves
processing capabilities of the switch, reduces communication expenditure, and minimizes the
probability of malicious attacks on the switch.
Issue 01 (2011-07-15)
Figure 3-23, After VLAN transparent transmission is enabled, theSwitch directly
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3 VLAN Configuration
153