I am trying to configure etherchannel on 3750E switch for link redundancy. We are having 2 stacked 3750E switch connected to Nexus 2148 switch via trunk port which is further connected to Nexus 5010.
I am using 3750E as core switches. I want redundancy on 3750E so that in case one of the stack member fails, other member can pass the traffic. The problem is when I configuring lacp to acheive this I am getting %SW_MATM-4-MACFLAP_NOTIF: MAC flapping errors, which I belive due to looping.
Below is the typical layout
3750E ------------ 3750E (Stacking)
NX 2148 NX 2148
NX 5010 -------- NX 5010 (VPC)
Could somebody suggest any solution to overcome this issue or any other method through which I can acheive the redundancy between switches?