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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


DELL-Josh Cr
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?