MPLS LSP Link Protection and Node-Link Protection System Requirements
To implement MPLS LSP link protection or node-link protection, your system must meet these minimum requirements:
Junos OS Release 8.2 or later for support on MX Series routers
Junos OS Release 7.4 or later for enhanced operational commands and system log messages for link protection and node-link protection
Junos OS Release 7.3 or later for link protection of point-to-multipoint LSPs and for class of service on link-protected LSPs and bypass LSPs
Junos OS Release 7.1 or later for multiple bypass LSPs, manual bypass LSPs, and link protection priority
Junos OS Release 5.4 or later for link protection
Junos OS Release 6.0 and later for node-link protection
Three Juniper Networks M Series, MX Series, or T Series routers