The system view is displayed.
Step 2 Run:
mac-address blackhole mac-address [ vlan vlan-id | vsi vsi-name ]
A blackhole MAC address entry is configured.
----End
Checking the Configuration
Run the display mac-address blackhole [ vlan vlan-id | vsi vsi-name ] [ verbose ] command
to view blackhole MAC address entries.
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.
Applicable Environment
Dynamical MAC address entries are learned by the S7700 from source MAC addresses of
received packets. The system starts an aging timer for dynamic MAC address entry. If a dynamic
MAC address entry is not updated within a certain period (twice the aging time), this entry is
deleted. If the entry is updated within this period, the aging timer of this entry is reset. A shorter
aging time enables the S7700 to respond to network topology changes more quickly.
The network topology changes frequently, and the S7700 will learn many MAC addresses. After
the aging time of dynamic MAC address entries is set, the S7700 can delete unneeded MAC
address entries to prevent sharp increase of MAC address entries.
Pre-configuration Tasks
None.
Data Preparation
To set the aging time of dynamic MAC address entries, you need the following data.
No.
Data
1 Aging time
Procedure
Step 1 Run:
system-view
The system view is displayed.
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.
349
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