Checking The Configuration - Huawei AR3200 Series Configuration Manual

Huawei AR3200 Series Enterprise Routers
Configuration Guide - Device Management
Context
If you want to configure an Eth-Trunk as a mirrored interface, run the interface eth-trunk trunk-
id command to create an Eth-Trunk first. Pay attention to the following points when you use an
Eth-Trunk as a mirrored interface:
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Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
Step 3 Run:
port-mirroring to observe-port observe-port-index { both | inbound | outbound }
A local mirrored interface is configured.
observe-port-index specifies the observing interface index. The value of this parameter must be
the same as the value set in
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3.3.4 Checking the Configuration

After port mirroring is configured, check the usage of the observing interface and mirrored
interface.
Prerequisite
The configurations of port mirroring are complete.
Procedure
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Issue 03 (2011-11-27)
If an Eth-Trunk is configured as a mirrored interface, its member interfaces cannot be
configured as mirrored interfaces. To configure a member interface as a mirrored interface,
delete it from the Eth-Trunk first.
If a member interface of an Eth-Trunk is configured as a mirrored interface, the Eth-Trunk
cannot be configured as a mirrored interface. To configure the Eth-Trunk as a mirrored
interface, delete the member interface from it first.
NOTE
If the downstream mirroring interface is configured with an ACL, the ACL does not take effect for mirroring
packets. After the mirrored interface is specified, all packets on the interface are mirrored regardless of
whether a traffic policy is configured.
Run the display observe-port command to check the observing interface in port mirroring.
Run the display port-mirroring command to check the mirrored interface in port
mirroring.
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3.3.2 Configuring a Local Observing
3 Mirroring Configuration
Interface.
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