Hi, I have found the solution of my problem. It was about the modules NetworkManager and ifenslave on Debian. Maybe they have some bugs inside them about LACP. Finally I have used the systemd-networkd module for the network configuration. For using it you need to stop with the /etc/network/interfaces file.  All of the new configuration files need to be inside the directory /etc/systemd/network/.  I show you all of my configuration files for my cases : [IMAGE][IMAGE][IMAGE][IMAGE][IMAGE][IMAGE] I think this solution is available for all kind of PowerEdge Rxxx version. I hope this will help someelse. Best regards.
Hello everybody, I continue to ask questions because this case is new for me. I have a switch PowerConnect 7048P and a server PowerEdge R710 (DEBIAN 9.8). On one hand, intn the switch, I have done an aggregation link (number 40) with LACP between the port 13 and 14. [IMAGE][IMAGE][IMAGE] And the other hand, I made the server ports configuration like this : [IMAGE] When I check the bonding interface with the ifconfig command, everything looks "OK" : [IMAGE] But when I try to ping the server from the switch, this is failed. I[IMAGE] When I try to ping the server virtual lan interface from the server, I can't but when I try to ping another virtual lan interface, I have the message "packets filtered" : [IMAGE][IMAGE] For me, it looks like something blocked from this server but I don't know why. I can specify another server is configured on the same VLAN and from it I can ping all of the virtual lan interfaces... if someone have an idea, I will be interested.   Best regards.   SARL TSF
[7048P] Can't ping a PowerEdge R710 on Linux DEBIAN 9.8