MPLS and RSVP
7210 SAS M, T, X, R6, Mxp MPLS Configuration Guide Page 93
Configuring Graceful Shutdown
Enable TE graceful shutdown on the maintainence interface using the 
config>router>rsvp>interface>graceful-shutdown command.
Disable graceful shutdown by executing the no form of the command at the RSVP interface 
level or at the RSVP level. This restores the user-configured TE parameters of the 
maintenance links, and the 7210 SAS maintenance node floods them.