Support for removing inactive dynamic subscriber VLANs

The removal of dynamic subscriber VLANs is now supported when an inactivity threshold has been reached. To define the threshold at which a subscriber VLAN is removed, include the client-idle-timeout statement, along with the timeout value (from 10 through 1440 minutes), at the [edit access profile profile-name session-options] hierarchy level. The client-idle-timeout value specifies a maximum period of time that the subscriber can be idle. By default, no timeout is present.