The mplsTunnelTable (see RFC 3812) allows new MPLS tunnels
to be created between an LSR and a remote endpoint, and
existing tunnels to be reconfigured or removed.
Note that only point-to-point tunnel segments are
supported, although multipoint-to-point and point-
to-multipoint connections are supported by an LSR
acting as a cross-connect. Each MPLS tunnel can
thus have one out-segment originating at this LSR
and/or one in-segment terminating at this LSR.
Extreme Networks MPLS implementation allows tunnel instances
with a common endpoint to be grouped at the ingress LSR to
provide redundancy. The role of each tunnel in the group must
be configured and is indicated by extremeMplsTunnelRedundancyType.
The failover to a redundant tunnel is implementation dependent.