This states whether the currently active encap tunnel in the group is static(1) (manually configured) or dynamic(2) (signaled via GMPLS/RSVP-TE), which determines how the network will behave if it fails again. A dynamic active tunnel can potentially be re-signaled onto yet another path automatically, whereas a static one will stay down until an operator reconfigures it. This tells the admin whether to expect self-healing or to plan manual remediation after the current failover.