Posts tagged "intel-x710"
Interface down on Cisco Nexus switch with "dcxNoACKi"
Problem: After an update of a server to Devuan4/Debian11the switch shuts down the interfaces to the server with status "dcxNoACKi" 48 minutes after the reboot. Discussion: the switch is a Cisco Nexus 5000 switch. It implements "Data Center Bridging Capability Exchange (DCBX)". The server is a Dell server with X710 C...
ARP and Broadcast Packets Missing
Problem: A Linux box with Debian 9 (kernel 4.9) on a HP server with Intel i40e (X710) network cards, is not reachable from neighbor machines, because ARP does not work. Discussion: while testing with tcpdump ARP worked, but later ARP stopped working again. When tcpdump is used with "-p" (non promiscuous mode) you ca...