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System Requirements for SCU

To implement SCU, your system must meet these requirements:

  • Junos OS Release 8.2 or later for M120 and MX Series router support

  • Junos OS Release 6.2 or later for IPv6 SCU

  • Junos OS Release 5.6 or later to use a source class or a destination class as a match condition in a firewall filter

  • Junos OS Release 5.4 or later for IPv4 SCU

  • Three Juniper Networks M Series, MX Series, or T Series routers for basic SCU and five routers for SCU with Layer 3 VPNs. One router acts as a source class usage transit router, and the other routers are used to generate traffic or participate in the Layer 3 VPN.

  • For M Series and T Series routers, a Tunnel Services PIC for SCU with Layer 3 VPNs

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