SPECIFICATION
VMUX sits above several lower protocols, making them appear as a single protocol. VMUX makes very simple decisions about which protocol to use for each connection.

SYNOPSIS
VMUX is only active during connection establishment. When openenabled, VMUX openenables all of its lower protocols on behalf of the upper protocol. When opened, VMUX attempts opens its lower protocols in the order in which they were specified in the down vector until a successful open occurs. The successfully opened lower session is then returned.

REALM
Since VMUX is active only during open, it should be considered in the same realm as the protocols below it (which should probably all be in the same realm.)

PARTICIPANTS
VMUX passes its participants to the lower protocols unmodified.

CONTROL OPERATIONS
VMUX forwards control operations to the last protocol in the down vector list.

CONFIGURATION
The lower protocols will be opened in the order in which they are listed in the configuration entry.

AUTHOR
Ed Menze