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NE40E sent ICMP echo reply message without request.

Created: Mar 28, 2019 01:09:28Latest reply: Mar 30, 2019 05:54:22 1142 3 0 0 0
  Rewarded HiCoins: 0 (problem resolved)

I found that the router NE40E sent ICMP echo reply message without  ping request on point to point link. why did this happen? can I disable this?

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chenhui
Admin Created Mar 28, 2019 01:14:31

Hello @sim_157!

This is a normal phenomenon, you don't need to handle it. The NE router has a link detection mechanism. If the interface is up and receives the packets, then NE will start the link detection automatically. It sends the ICMP packets (the source and destination IP is NE itself, TTL is 2), the remote side receives this packet and will send it back to NE since the destination IP is the sender.

After NE has received the ICMP packet, it will compare the packet. If the data has been modified or it is time-out, NE will consider the link as unstable or problematic.

You can turn off this function with below command. Please note that the SAID node 2 is for physical interface, the SAID 3 is for trunk interface.

[HUAWEI]set said-node 2 slot 3 disable.
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chenhui
chenhui Admin Created Mar 28, 2019 01:14:31

Hello @sim_157!

This is a normal phenomenon, you don't need to handle it. The NE router has a link detection mechanism. If the interface is up and receives the packets, then NE will start the link detection automatically. It sends the ICMP packets (the source and destination IP is NE itself, TTL is 2), the remote side receives this packet and will send it back to NE since the destination IP is the sender.

After NE has received the ICMP packet, it will compare the packet. If the data has been modified or it is time-out, NE will consider the link as unstable or problematic.

You can turn off this function with below command. Please note that the SAID node 2 is for physical interface, the SAID 3 is for trunk interface.

[HUAWEI]set said-node 2 slot 3 disable.
View more
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chenhui
chenhui Admin Created Mar 28, 2019 01:15:07

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sim_157
sim_157 Created Mar 30, 2019 05:54:22

Posted by chenhui at 2019-03-28 01:14 Hello @sim_157!This is a normal phenomenon, you don't need to handle it. The NE router has a link de ...
thanks, I'll check it.
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