Huawei VRP Ping -i Parameter Function

H12-811 By islever Editorial Last updated

Network Troubleshooting

Short answer

D The -i parameter in a Huawei VRP Ping command specifies the Interface for sending an Echo Request packet.

Question

In the case of Huawei router, what is the "-i" parameter in a Ping command issued on a VRP operating system used to set?
  1. Interface for receiving an Echo Reply packet.
  2. Source IP address for sending an Echo Request packet.
  3. Destination IP address for receiving an Echo Reply packet.
  4. Interface for sending an Echo Request packet. Correct Answer

Key Takeaways

The trap lies in confusing the -i (interface) flag with the -a (source address) flag; -i determines the egress interface, while -a explicitly defines the source IP.

In Huawei VRP, the ping command's -i option sets the outbound interface for sending Echo Requests. Understanding this distinction from the -a source IP parameter is key for accurate network troubleshooting.

Common mistake: Option B is the most plausible error because users often assume 'i' stands for IP source. However, -i selects the interface, whereas -a is used to set the source IP address directly.

Expert Analysis

The -i parameter in the Huawei VRP ping command specifies the outbound interface for sending ICMP Echo Request packets. When this flag is used, the router determines the source IP address based on the routing table entry associated with that specific interface and sends the request out through it. This allows administrators to test connectivity from a particular logical or physical interface perspective.

It is critical to distinguish between source specification methods. While -a <source-ip-address> explicitly sets the source IP, -i <interface-type> <interface-number> selects the interface, letting the system derive the source IP. Option B describes the function of the -a parameter, not -i. Option C incorrectly refers to the destination, which is provided as a positional argument after the command, not via -i. Option A misinterprets the direction; the parameter controls the egress path for the request, not the ingress path for replies.

Exam Strategy

When analyzing CLI parameters for diagnostic tools like ping, always check if the flag specifies a direct value (like an IP) or a path/interface. In Huawei VRP, memorize that -a sets the Source Address and -i sets the Outbound Interface to avoid confusion during exams.

Frequently Asked Questions

What is the difference between -i and -a in Huawei ping?

-i specifies the outbound interface for the Echo Request, allowing the router to choose the source IP based on that interface. -a explicitly sets the source IP address.

Can I use -i to specify a loopback interface?

Yes, you can use -i followed by a loopback interface name (e.g., -i LoopBack 0) to send the ping request from that logical interface.

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Community Votes

D
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100% of anonymous learners picked answer D. Votes are pick records left by other test-takers — they are not the verified answer.

Discussion 3 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 3

  1. e9b92a4 👍 1 Answered D
    Answer: D. Interface for sending an Echo Request packet. On Huawei VRP, the ping option -i <interface-type> <interface-number> specifies the outbound interface used to send ICMP Echo Request packets (for example, -i GigabitEthernet 0/0/1). Tip: Don’t confuse this with -a <source-ip-address>, which sets the source IP address of the Echo Request; -a does not choose the interface.
  2. Fmoura17 👍 1 Answered D
    -i Especifica a interface de saída para enviar o Echo Request
  3. orxan1492 👍 1 Answered D
    D. Interface for sending an Echo Request packet.

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