We are in the process of moving our HPE NonStop environments into our ACI fabric and have run into some performance issues. On the NonStop side, they are running a bond interface, with two interfaces in the bond and the bond setting as "balance-alb" aka adaptive load balancing. The issue we are noticing is that ACI is learning the IP of the bond interface from two different MAC addresses. The IP will bounce back and forth between those MACs. When that happens, we are receiving reports of performance degradation. When we disable one of the interfaces from the ACI side, the performance issues disappear. This is similar to configuration option for the bond interface configuration on the NonStop side - specifically configuring the interfaces in an HA, "active-backup" pair.
Has anybody else run into a similar issue with an ACI/NonStop configuration? What was done to correct?
Yes we've seen this before with Mainframes and L4-7 devices that share IPs/MACs. Since you're running 4.2, your best option would be to: