If the data traffic on outbound interfaces of the external network is high, how to view data traffic

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You can code py packets on the outbound interface to another specified interface to analyze data packets using the mirroring function.

Other related questions:
How to configure an Ethernet interface to access the external network
Service interfaces fall into two types: 1. LAN interface (Layer 2 interface): is used by an AR to exchange data with network devices on a LAN. 2. WAN interface (Layer 3 interface): is used by an AR to exchange data with external network devices. You can run the portswitch command to switch a Layer 2 interface to a Layer 3 interface, to implement data exchange with the external network.

Can traffic policing and traffic shaping be configured on an interface in the outbound direction
Traffic policing (qos car) affects traffic shaping (qos gts). It is recommended that the two commands should be not configured on an interface simultaneously.

How to configure rate limiting based on the SAC signature database on an AR?
The SAC signature database contains thousands of application protocols. An SAC traffic classifier defines the rule for matching packets. Users configure different SAC traffic classifiers to classify packets, and limit the rate of traffic in the traffic behavior. The traffic policy then can be applied in the inbound or outbound direction on the interface.

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