To implement the multiple-instance LDP feature,
your system must meet these minimum requirements:
JUNOS Release 8.2 for support on MX-series routing platforms.
JUNOS Release 5.4 or later for support on M-series and
T-series routing platforms.
Two Juniper Networks M-series, MX-series, or T-series
routing platforms for basic multiple-instance LDP; and a minimum of
four Juniper Networks routing platforms to act as PE routers in a
carrier-of-carriers network.