A list of virtual ethernet interfaces which supports pinning functionality in VSM. Pinning is a mechanism of directing traffic to or from a interface through a particular interface in a switch. By default, system use load balancing algorithm to pick the best possible physical interface automatically. However, user may use pinning functionality to instrument the finite control on the traffic flow between virtual ethernet interfaces and actual physical interfaces in VSM. For example, user may want to configure that packets from a particular virtual ethernet interface always go out through first interface in the port channel irrespective of load balancing policy on the switch. In order to achieve this, user can pin the virtual ethernet interface to first interface of the switch.