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November 13th, 2020 12:00

Broadcast ARP not receive

Hi,

I have two Switch N3048 connect in stack mode. I created VLANs 10,20,30,40,50 and some Port-Channels.

When I send a ping between two VMs in a different Port-Channel, the ARP message and other broadcast message do not receive. Normally, I try to send ping from the other VM a communication is normalized.

I capture the origin and destination port-channel and I only see ARP packets on the origin interface. The destination port-channel I don't receive broadcast message from origin MAC address. I analyzed switch log and I have not log from broadcast traffic problems. I disable the storm-control and security features.

Why don't you receive the ARP message in the other Port-Channel? Is it possible that the problem is generated because I have the port-channel configured on both switches?

The Port-Channel interface configuration is

interface Channel-port

switchport mode trunk

switchport trunk native vlan 10

Switchport trunk allowed vlan 20, 30, 40, 50

and interface configuration is

Interface G1/0/1

channel-group 1 mode active

Interface G2/0/1

channel-group 1 mode active

 

Community Manager

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November 13th, 2020 16:00

Hi XavierAND,

Are the VMs in the same VLAN? If you don’t have them in a port-channel does it work? Is the firmware up to date?

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