7 MAC Address Table Configuration
About This Chapter
This chapter provides the basics for MAC address table configuration, configuration procedure,
and configuration examples.
7.1 MAC Address Table Overview
This section describes the definition of the MAC address table, how MAC address entries are
generated, and how packets are forwarded based on the MAC address table.
7.2 MAC Address Features Supported by the S7700
This section describes the MAC address features supported by the S7700 and provides usage
scenarios of the features to help you complete configuration tasks quickly and accurately.
7.3 Configuring a Static MAC Address Entry
A static MAC address entry specifies an outbound interface for packets destined for a specified
MAC address. Static MAC address entries protect the S7700 from MAC address attacks.
7.4 Configuring a Blackhole MAC Address Entry
You can configure a blackhole MAC address entry so that the S7700 can discard packets with
the specified source or destination MAC address.
7.5 Setting the Aging Time of Dynamic MAC Address Entries
Dynamic MAC address entries are created by the S7700 and can be aged out. Setting a proper
aging time prevents sharp increase of MAC address entries.
7.6 Disabling MAC Address Learning
If a fixed device is connected to an interface, you can disable MAC address learning on the
interface. This prevents other devices from accessing the interface and improves device security.
7.7 Limiting the Number of Learned MAC Addresses
This section describes how to limit the number of MAC addresses learned on an interface, in a
VLAN, in a slot, or in a VSI.
7.8 Configuring Port Security
The port security function prevents devices with untrusted MAC addresses from accessing an
interface. This function is applicable to the networks that require high access security.
7.9 Configuring MAC Address Anti-Flapping
This section describes how to prevent MAC address flapping between interfaces.
Quidway S7700 Smart Routing Switch
Configuration Guide - Ethernet 7 MAC Address Table Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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