Multiprotocol Label Switching (MPLS) allows peer-to-peer authentication or client-to-server authentication. To authorize an authentication, use commands such as the following to configure shared secret keys for MPLS.
device(config)# rsvp-authentication key jdoepass
For MPLS LDP:
device(config)# session 10.10.10.3 key jdoepass
For more information on MPLS authentication commands, refer to the Extreme NetIron Routing Configuration Guide.