VLAN
Assignment
Method
Advantage Disadvantage Usage Scenario
Protocol-
based VLAN
assignment
join a VLAN, move
from one VLAN to
another VLAN, or
leave a VLAN.
Switches need to
analyze protocol
address formats and
convert between them.
This slows down the
response of switches.
Currently, VLANs can
be configured based on
AppleTalk, IPv4, IPv6,
or IPX.
Policies-based
VLAN
assignment
MAC and IP
addresses-based or
MAC addresses, IP
addresses and
interfaces-based
VLAN assignment is
of high security. This
VLAN assignment
method does not allow
users to change MAC
addresses or IP
addresses based on
which VLANs are
configured.
Compared with other
VLAN assignment
methods, policies-
based VLAN
assignment has the
highest priority.
Each policy needs to
be manually
configured.
Policies-based VLAN
assignment is applicable
to small-scale networks
that have strict security
requirements and a large
number of traveling
users.
NOTE
In the case that the S7700 supports multiple VLAN division modes, the priorities of these VLAN division
modes are in descending order:
1. Policies-based VLAN division
This mode has the highest priority, but is not commonly used.
2. MAC address-based VLAN division and IP subnet-based VLAN division
By default, MAC address-based VLAN division is set as the preference. You can run commands to
change priorities of these two VLAN division modes.
3. Protocol-based VLAN division
4. Port-based VLAN division
Port-based VLAN division has the lowest priority, but is most commonly used.
Pre-configuration Tasks
Before dividing a LAN into VLANs, complete the following task:
l Connecting ports and configuring physical parameters of the ports, ensuring that the ports
are physically Up
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 3 VLAN Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
77
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