Pre-configuration Tasks
None.
Data Preparation
None.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
mac-address update arp
The MAC address triggered ARP entry update function is enabled.
By default, the S7700 does not update the corresponding ARP entry when the outbound interface
in a MAC address entry changes.
NOTE
l This command takes effect only for dynamic ARP entries. Static ARP entries are not updated when
the corresponding MAC address entries change.
l The mac-address update arp command does not take effect after ARP anti-spoofing is enabled by
using the arp anti-attack entry-check enable command.
l After the mac-address update arp command is run, the S7700 updates an ARP entry only if the
outbound interface in the corresponding MAC address entry changes.
----End
Checking the Configuration
Run the display current-configuration command to check whether the MAC address triggered
ARP entry update function is enabled.
7.13 Enabling Port Bridge
The port bridge function enables an interface to process packets in which the source and
destination MAC addresses are the same.
Applicable Environment
The port bridge function is used in the following scenarios:
l The S7700 connects to a device that does not support Layer 2 forwarding. When users
connected to this device communicate with each other, user packets are sent to the S7700
and forwarded by the S7700. In this scenario, the port bridge function must be enabled.
l The S7700 is used as an access switch in a data center and is connected to servers. Each
server is configured with multiple virtual machines. The virtual machines need to transmit
data to each other. To improve the data transmission rate and server performance, enable
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.
368
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