To implement simplified interinstance route sharing,
your system must meet these minimum requirements:
JUNOS Release 8.2 or later for support on MX-series routing
platforms
JUNOS Release 5.4 or later for simplified interinstance
route sharing on M-series and T-series routing platforms
Four Juniper Networks M-series, MX-series, or T-series
routing platforms for the overlapping VPNs example: Two routers act
as PE routers and two act as customer edge (CE) routers
Six Juniper Networks M-series, MX-series, or T-series
routing platforms for the nonforwarding instance example: Two act
as PE routers and four act as CE routers
